Granted patents

  • A Process for Preparing Fluid Catalytic Cracking (FCC) Catalyst Suitable for Hydrocarbon Conversion
    A process for preparation of fluidized catalytic cracking (FCC) catalyst, comprising silicon stabilized large crystallite sized synthetic faujasite zeolite, aluminum depleted and normal kaolin clay, alumina and silica. The cracking catalyst is highly active and selective for bottom upgradation, it produces less coke and higher gasoline and total cycle oil (TCO) and possesses improved metal tolerance properties when evaluated and compared with a commercial catalyst under conditions of a typical FCC unit in a petroleum refinery.
  • A Multistage Selective Catalytic Cracking Process and a System for Producing High Yield of Middle Distillate Products from Heavy Hydrocarbon Feed Stocks
    According to this invention, there is provided a process and apparatus for catalytic cracking of various petroleum based heavy feed stocks in the presence of solid zeolite catalyst and high pore size acidic components for selective bottom cracking and mixtures thereof, in multiple riser type continuously circulating fluidized bed reactors operated at different severities to produce high yield of middle distillates, in the range of 50–65 wt % of fresh feed.
  • A Process and an Apparatus for Preparing Mineral Turpentine Oil having Improved Colour Stability
    A process and an apparatus for the preparation of petroleum hydrocarbon solvent with improved color stability from crude oils having high concentration of nitrogenous compounds which comprises passing said petroleum hydrocarbon stream containing substantial amount of nitrogenous compounds over a column of molecular sieves /modified clays at ambient to elevated temperature and pressure maintaining the feed in the liquid state, thereby obtaining the petroleum hydrocarbon stream with desired color stability.
  • Stabilized Dual Zeolite Particle Catalyst Composition and a Process therefore
    A process for the preparation of a stabilized dual zeolite catalyst-comprising two types of zeolites, a low silica molecular sieve and a stabilized high silica zeolite is disclosed. The catalyst is useful for cracking heavier hydrocarbons into lighter useful products.
  • A Fluidized Bed Catalytic Cracking Apparatus and Process thereof
    This invention provides a resid cracking apparatus comprising a riser, reactor, stripper cum separator with adjustable outlets in flow communication with adsorbent and catalyst regenerators for converting hydrocarbon residues containing higher concentration of conradson carbon content, poisonous metals such as nickel & vanadium and basic nitrogen etc., into lighter and valuable products and a process thereof.
  • A Process for the Preparation of CNSL Phophorothionate Derivatives
    Phosphorothionate derivatives derived from cashew nut shell liquid (CNSL) for use as an thermally stable antioxidant, antiwear, friction reducing and extreme pressure additive in a lubricant composition are synthesized by the steps of (a) partially hydrogenating distilled technical cashew nut shell liquid with palladium or nickel or platinum catalyst; to hydrogenate the olefinic chain; (b) reacting partially hydrogenated technical cashew nut shell liquid with phosphorus trihalide and sulphur, the reaction being carried out at a temperature ranging from 20 to 220° C. A lubricant containing a major proportion of a material selected from the group consisting of an oil of lubricating viscosity or a grease; and remainder an additive including CNSL phosphorothionate derivative, prepared by the foregoing process.
  • Improved Method and Apparatus for Non-Dispersive Contacting of Liquid-Liquid Reactive System (Jointly with EIL)
    The present invention relates to an improved method and device for non-dispersive contacting of liquid-liquid reactive system. In particular, the present invention relates to a process and an apparatus for separating impurities from a liquid by a non-dispersive contacting of liquid-liquid reactive systems, said liquids being immiscible with each other.
  • Fuel Additive Composition for Stabilizing Blends of Ethanol and a Hydrocarbon
    The present invention provides a fuel additive composition for stabilizing blends of ethanol and a hydrocarbon boiling in the gasoline or diesel range, comprising: a) 0.1-10% of Cashew Nut Shell Liquid (CNSL) derivative(s) or mixtures thereof of formula (I) where m=0-12, n=0, 2, 4 & 6 and b) 0.1-10% of an organic co-solvent depending upon the percentage composition of diesel and ethanol blend.
  • Production of Polymer/Food Grade Solvents from Paraffin Rich Low Value Streams Employing Hydroprocessing
    The present invention relates to the process for the preparation of Polymer/ Food grade hydrocarbon solvents of naphtha range essentially free from olefins less than 20 ppm of aromatics and less than 1 ppm of sulfur from paraffinic-rich low value streams such as raffinate from the solvent extraction units in crude oil refineries employed for recovery of aromatics from reformate by hydrogenation in the presence of a nickel based catalyst.
  • A Surfactant Composition for Use as Emulsifier in Water Blended Fuel Composition
    The present invention relates a surfactant composition for use as an emulsifier in water blended fuel mixture. The said composition includes ethoxylate of cashew nut shell liquid. In addition ethoxylate of cashew nut shell liquid, the said composition comprises a co-surfactant having a hydrophilic lipophilic balance in the range of 4 to 12 and a polymeric dispersant. The water blended fuel mixture using emulsifiers of the present invention, overcome some of the shortcomings of the previously known emulsions. The ethoxylate of cashew nut shell liquid is of the formula (I).
  • Process for Preparation of Lubricating Greases
    The present invention provides a process for the preparation of a lubricating grease composition which comprises the healing of base oil first up to 50-90 °C in required proportion, stirring and adding preformed soap in required proportion and mixing it thoroughly by agitation. The mixture so formed is then heated around 90 to 170 °C in 1 to 5 hrs followed by cooling the said product, adding in third stage de-geller followed by addition of balance base oil & additives, and subjecting the mixture to the step of shearing-if desired to obtain the required grease.
  • Process for Preparing Hydrotreating Catalyst Composition useful for Desulfurization of Gasoils
    A process for the preparation of hydrotreating catalyst which comprises of a Group VIB metal and Group VIII metal on an active composite carrier for the removal of sulfur from gas oil feed stocks, wherein the said carrier comprises of a phosphated alumina and an ultra stable Y zeolite and the metal components mostly reside on the alumina, said process comprising the steps of impregnation of chelated metal complex preferentially on to the alumina component of the composite support and subjecting the composite catalyst to a high-speed ball milling. The catalyst obtained by the process of the present invention consists of the active metals in the nanoparticle range (less than 50 Å) while also retaining the zeolite properties of the composite carrier and the catalyst produces less than 50 ppm sulfur from gas oil feed stocks containing greater than 1 wt % sulfur under typical commercial operating conditions.
  • Process for Production of Aviation Turbine Fuel ATF/Premium Grade Kerosene through Low Pressure Hydrotreating
    The present invention relates to the process for production of Aviation Turbine Fuel (ATF) or premium grade kerosene of boiling range between 125 and 325°C, but commonly between 140-280°C, with very low sulfur (particularly mercaptans) from high sulfur feed through hydrotreating at pressure ranging between 1 bar and 15 bar, but preferably between 4 bar and 7 bar. The reaction temperature can be between 150°C and 350°C, but preferably between 200 to 300°C. The process has advantage of flexibility of operating range leading to different product properties, all essentially having very low sulfur particularly mercaptans. The process is particularly suitable for production of commercial ATF / premium grade kerosene (SKO) and can be extended to other petroleum fractions, specially naphtha and diesel, but not limited to these alone.
  • A Ceramic Body mix utilizing spent catalyst waste and a process for preparing the same
    The present invention provides a ceramic composition for preparing scientific pottery wares, which comprises feldspar, quartz, clay, spent catalyst and de-flocculent. The spent catalyst is used to replace or reduce some raw materials in pottery industry due to its physico-chemical characteristics. The invention also provide a process for the preparation of scientific pottery wares from the ceramic composition.
  • A Cement Blend and a Process for Preparing the Same thereof
    The present invention relates to cement blend comprising 1 to 50% by weight of spent zeolite catalyst, having improved fineness, setting time and compressing strength and a process for preparing the same. More, particularly, the present invention relates to a process for utilization of spent catalyst rich in silica and alumina as cement performance improver.
  • An Improved Cordierite Based Kiln Furniture and A Process for Preparing the Same
    Processes for making a catalytic system and catalytic systems for converting solid biomass into fuel or specialty chemical products, or for upgrading bio-oils are described. The catalyst system may comprise a non-zeolitic matrix with a hierarchical pore structure ranging from 300 to about 104 Angstrom pore size, a zeolite, such as MFI-type or IM-5 zeolite, and a binder.
  • Composition of a Soluble Cutting Oil and Soluble Cutting Oil Additive for Making Soluble Cutting Oil for Metal Working Applications
    A soluble cutting oil composition comprising a high viscosity index (HVI) base oil 5-90% by wt, amine oleate 3-60% by wt, heavy alkyl benzene 0-8% by wt, biocide 0.5-10.8% by wt, co-solvent 05-12.8% by wt, deodorant 0.1-3.6% by wt, sodium petroleum sulphonate 4-32% by wt, non-ionic emulsifier 0-38% by wt, corrosion inhibitor 0-8% by wt, optionally sodium oleate or potassium oleate and water for metal working applications.
  • Process for Enhancing Yield of Sodium Aluminosilicate Molecular Sieves During Synthesis
    The present invention relates to a process for improving the yield of zeolite molecular sieves during synthesis. More particularly, the present invention relates to a process for improving the yield of zeolites during the synthesis by addition of a source of aluminum to an aluminum deficient reaction mixture. Addition of aluminum source at intermediate stage of crystallization promotes incorporation of unutilized silica species into zeolite framework, which otherwise is treated as waste in the mother liquor.
  • A Method of Remediation of Acidic Sludge
    The present invention relates to a method of disposal of sludge and more particularly to a method of disposal of acidic sludge utilizing microorganisms capable of degrading of hydrocarbon i.e., bioremediation at acidic pH.
  • Process for Conversion of Hydrocarbons to Saturated LPG and High Octane Gasoline
    The present invention relates to a process for the conversion of hydrocarbon streams with 95% true boilling point less than 400°C to very high yield of liquefied petroleum gas in the range of 45-65 wt% of feed and high octane gasoline the said process comprise catalytic cracking of the hydrocarbons using a solid fluidizable catalyst comprising medium pore crystalline alumino-silicates with or without Y-zeolite, non crystalline acidic materials or combinations thereof in a fluidized dense bed reactor operating at a temperature range of 400 to 550°C, pressure range of 2 to 20 kg/cm2(g) and weight hourly space velocity in range of 0. l to 20 hour'1, wherein the said dense bed reactor is in flow communication to a catalyst stripper and a regenerator for continuous regeneration of the coked catalyst in presence of air and or oxygen containing gases the catalyst being continuously circulated between the reactor-regenerator system.
  • Process for Production of Needle Coke
    A process is disclosed for producing needle coke from heavy atmospheric distillation residues having sulfur no more than 0.7 wt %, which process involves the steps of heating the feedstock to a temperature in the range of 440 to 520° C. for thermal cracking in a soaking column under pressure in the range of 1 to 10 kg/cm2 to separate the easily cokable material, separating the cracked products in a quench column and a distillation column and then subjecting the hydrocarbon fraction from the bottom of the quench column and a hydrocarbon fraction having a boiling point in the range of 380 to 480° C. from the distillation column and/or any other suitable heavier hydrocarbon streams in a definite ratio depending on certain characteristic parameters to thermal cracking in a second soaking column at a temperature of 460 to 540° C., pressure in the range of 2 to 20 kg/cm2 in presence of added quantity of steam for formation of a mesophase carbonaceous structure which on steam stripping and cooling forms a solid crystalline coke suitable for manufacturing of graphite electrode of large diameter having co-efficient of thermal expansion lower than 1.1×10−6/° C. measured on graphite artifact in the temperature range of 25 to 525° C.
  • Lubricity Improving Additive Composition for Low Sulphur Diesel Fuel
    The present invention relates to a additive composition for use as lubricity improver for low sulphur diesel, comprising c) 0.1-10% by weight of ester derivative derived from cashew nut shell liquid (CNSL esters) of formula (I); f) 0.1-10% by weight of ester derivative derived from cashew nut shell liquid of formula (II); g) 50-95% by weight of free fatty acid of the formula RCOOH in which R represents an alkyl/alkenyl group with 12 to 24 carbon atoms. h) 1-30% by weight of synthetic esters derived by esterifying tri, tetra, penta hydric alcohols with carboxylic acids such as lauric, palmitic, linoleic, ricinoleic etc.
  • A Sulphur Sorptive membrane an a method for separation of sulphur compounds from liquid hydrogen
    The present invention relates to a sulphur-sorptive membrane for separating sulphur compounds from a liquid hydrocarbon mixture such as gasoline, diesel, kerosene, aviation turbine fuel and other hydrocarbon fuels. The membrane is made of a co-polymer, wherein the monomers Hansen's three-dimensional solubility parameter is similar to that of the sulphur compound present in the hydrocarbon mixture. The membrane has a sulphur enrichment factor from about 2 to about 15. The present invention also relates to a process for separating sulphur compounds from a liquid hydrocarbon using the membrane.
  • Composition of Agricultural Spray Oil
    The invention relates to an agricultural spray oil composition comprising paraffinic base oil and emulsifiers for controlling pests and diseases in tea gardens, various plantations, fruit orchards etc. The said composition is based on C16-C18 alcohol poly glycol ether along with other emulsifiers.
  • Synergistic Deposit Control Additive composition for Gasoline and process thereof
    The present invention relates to deposit control additive composition comprising of Mannich base and Poly iso butylene amine (PIBA) having average molecular weight of 800 as a synergistic component of deposit control additive formulation. The invention also relates to deposit control additive composition comprising further components such as fluidizer oil, dehazer, corrosion inhibitor and solvent to obtain deposit control additive formulation and mixed with gasoline fuel to obtain fuel composition. The invention further relates to a process for the preparation of fuel composition by blending at ambient temperature gasoline fuel and deposit control additive composition obtained by blending in a suitable container Mannich base, Polyisobutylene amine (PIBA), fluidizer oil, dehazer, corrosion inhibitor and solvent at a temperature ranging between 50°C to 60°C for a time period of up to 2 hours.
  • Method for Bio-Oxidative Desulfurization of Liquid Hydrocarbon fuels and product thereof
    Disclosed herein is a method for producing ultra-low-sulfur content hydrocarbon fuel and product thereof. The method comprises selective biocatalytic oxidation of sulfur containing compounds present in the fuels employing enzyme lipase as biocatalyst in presence of controlled and incremental amount of hydrogen peroxide and carboxylic acid without using water or any co-factor for the reactivity of said enzymes.
  • Novel Reactive Adsorption and process for removal of refractory sulfur compounds from various refinery streams
    The present invention relates to a reactive adsorbent composition for removing refractory sulphur compounds from refinery streams comprising of base component in the range of 10 to 50 wt%, spinel oxide in the range of 20 to 60 wt% as a reactive metal oxide and bimetallic alloy in the range of 10 to 40 wt% acting as an adsorbent capacity enhancer in synergy with base component of the said composition. The invention also relates to a process for the preparation of said composition by mixing in solid state fine particles of base component, spineloxide and bimetallic alloy, homogenizing the mixture thus obtained with solvent, peptizing the wet solid with dilute mineral acid, extruding the peptized material with extrusion aiding agents, drying the extrudates, further calcining the dried extrudates and reducing the calcined material under hydrogen flow.
  • Process for preparation of LPG Selective Cracking Catalyst
    The present invention relates to a process for preparing a cracking catalyst composition for cracking heavy hydrocarbon, said process comprising of treating zeolite with sodium free basic compound with or without phosphate; treating an alumina with a dilute acid; acidifying a colloidal silica; preparing a fine slurry of clay with a source of phosphate; adding alumina slurry and/or acidified colloidal silica to clay phosphate slurry; adding treated zeolite and spray-drying the slurry and calcining the same to obtain a cracking catalyst having adequate ABD and attrition resistance property and suitable for enhancing yield of C3 to C4 hydrocarbons. These hydrocarbons are major constituents of liquefied petroleum gas (LPG). The invention particularly relates to a catalyst composition comprising alumina, silica, silica-alumina with clay phosphate binder for cracking heavy residual hydrocarbon feed.
  • Composition of Semi-Synthetic Cutting Oil for Metal Working Applications
    The invention relates to an semi-synthetic cutting oil composition comprising high viscosity index spindle oil, emulsifiers and other performance additives like EP, corrosion inhibitors and biocides etc. The composition forms translucent emulsion with water and it can be employed for metalworking operations. The said composition is particularly suitable for grinding, milling, drilling, turning operations. It has excellent hard water stability, swarf removal and cooling characteristics. It also has very good emulsion stability, corrosion protection properties and bio-stability.
  • Bio-Assisted Method for Disposing the Emulsion of Metal Working Fluids
    Disclosed herein is a bio-assisted method for disposal of emulsion generated from the metal working fluids used in manufacturing industries. The method comprises of isolating and selecting effective strains of microbes from operationally exhausted emulsions by enrichment to form a microbial consortia and employing the same for degradation of emulsion.
  • Composition of Oil for thin Gauge Steel Rolling
    The invention relates to a composition of oil for thin gauge steel rolling comprising of natural fats / oils, synthetic esters, high viscosity mineral oil and other performance additives such as extreme pressure, antiwear, emulsifiers, antioxidants, antifoam etc. The composition forms oil-in-water milky meta-stable emulsion with water. The said composition is suitable for thin gauge steel rolling. It has excellent lubricity and burn off characteristics. It also has very good hard water compatibility.
  • Method for Bio-Assisted Treatment of Hydrocarbon contaminated Soil
    Disclosed herein is a bio-assisted method for treatment of hydrocarbon contaminated soil employing novel microbes which are capable of decontaminating hydrocarbon contaminated soil having free flowing water or in slurry form or having large amount of gravels. The method comprises adding hydrocarbon releasing microbes followed by adding the microbes capable of degrading the released hydrocarbon to decontaminate the soil, wherein said microbes are grown separately in suitable vessels containing a suitable nutrient medium.
  • Process for the preparation of High Crystallite Size Faujasite type Zeolite
    The present disclosure provides a process for preparing a synthetic faujasite zeolite which has thermal stability and higher crystallite size. The present disclosure further provides a process for preparing a synthetic faujasite zeolite that requires lower crystallization time. The present disclosure further provides a seed composition that does not require maturing time and the reaction gel composition that has low water and soda content. The present disclosure further provides a process for the preparation of synthetic faujasite zeolite by blending seed and reaction gel reaction composition to form a seed gel composition which is then subjected to crystallization.
  • Storage Stable Crumb Rubber modified Bitumen & method of manufacturing thereof
    The present invention is directed to improve the stiffness, elastic recovery and storage stability of bitumen to desired level by mixing crumb rubber powder particle size less than 3mm preferably less than 600 micron, natural asphalt / gilsonite in presence of poly-phosphoric acid. The present invention is also directed to the method of manufacturing crumb rubber modified bitumen using crumb rubber powder, natural asphalt and poly-phosphoric acid. The present invention claims that the crumb rubber modified bitumen produced using crumb rubber powder, natural asphalt / Gilsonite and poly-phosphoric acid exhibits improvement in stiffness (viscosity), softening point, elastic recovery and in the storage stability to desired level from the base bitumen.
  • Composition of Heavy duty engine coolant
    The present invention relates to an alkylene glycol based engine coolant composition free from borate, phosphate, amine, silicate, nitrite and transition metal compounds containing (a) poly carboxylic acid substituted triazine and/ sodium/potassium salt (b) mono and/or dicarboxylic acids (c) at least one conventional corrosion inhibitor comprising aromatic carboxylic acid, a triazole compound, an antifoam, dye, pH control agent and alkali metal nitrate. The composition forms clear solution with water and provides excellent corrosion protection to copper, solder, brass, steel, cast iron and cast aluminium. The said composition is highly effective with water containing high hardness of upto 700 ppm when measured in terms of CaCO3. The engine coolant composition is particularly suitable for heavy duty applications such as diesel engines etc.
  • A method for the preparation of Hydrotreating Catalyst
    A method for the preparation of hydrotreating catalyst. The process described is for the preparation of an improved hydrodesulfurisation catalyst for hydrodesulfurisation of gas oil feed stocks. The composition comprises a carrier modified with at least one rare earth metal, on which is supported metal species of group VI B metal comprising either Mo and/or W in an amount of 10-25 % by weight as oxide and a metal of group VIII metal most preferably Ni species in an amount 1-5% by weight as oxide. The catalyst prepared by the described method produces highly dispersed nanostructured active phase after the sulfidation step. This catalyst produces less than 50 ppm sulfur form Indian Gas Oil feed stocks containing about 1% weight sulfur.
  • Improved Lubricating Oil Composition
    The present invention relates to a lubricating oil composition useful for controlling black deposit formation in diesel engines, wherein the lubricating oil comprises a major portion of a lubricating oil base and a minor proportion of an aromatic phenol containing thio-ether moiety, wherein the aromatic phenol is selected from a group of di- and tri- alkyl substituted compounds with a minimum carbon chain length of C7-C16, and the thio-ether is selected from a group comprising of iso-alkyl substituted aromatic hydrocarbon with a carbon chain length of C16-C22.
  • Metal Passivator Additive
    A process of preparation and composition of an attrition resistant metal passivator additive based on rare earth oxides is disclosed. The metal passivator additive offers higher flexibility against the use of existing cracking catalysts that contain the passivation component as their integral part, as the metal passivator additive can be used only while processing metal laden feeds and the addition can be terminated while processing lighter feeds with negligible metals. Further, the process gives a product having high passivation for metals while meeting required physical properties such as apparent bulk density (ABD) and attrition index (AI). The process comprises preparation of a rare earth component, treating an alumina with a dilute acid to form alumina gel, adding the alumina gel to the rare earth component, optionally adding colloidal silica, preparing a fine slurry of clay, adding the clay slurry to the mixture, spray-drying the mixture, and calcining the spray dried product to obtain the metal passivator additive having adequate ABD and attrition resistance properties.
  • Upflow regeneration of FCC catalyst for multistage cracking
    A Process for regeneration of spent FCC catalyst using multiple reactors operation resulting in wide variation of coke on spent catalyst is disclosed. This process uses an up flow regenerator with divided injection of spent catalyst based on their coke content to control the residence time for its efficient regeneration and reduced hydrothermal deactivation. This system has the advantage of minimizing the exposure to the high temperature of low coked catalyst to the minimum possible time and high coke contained catalyst to the required time for its complete regeneration.
  • Process for Recovery of Solid and Reusable Urea from the Urea Adduction Process
    A process for recovery of solid and reusable urea from the urea adduction process. Refinery streams are subjected to a step of urea adduction for removal of unwanted branched products, aromatics and sulphur. The adduct is purified, dried and then subjected to the step of mechanical shearing.
  • Process for the Preparation of Aromatic Solvent from a Dioxane Contaminated Aromatic Stream
    A process for preparing benzene containing less than 1 ppm (wt) dioxane from an aromatic stream containing benzene which is contaminated with dioxane, the process including providing an aromatic stream containing benzene which is contaminated with dioxane; subjecting the aromatic stream to liquid phase adsorption by contacting an adsorbent contained in at least one column, which adsorbent comprises at least one substance selected from the group consisting of molecular sieves and clay; and recovering benzene containing less than 1 ppm (wt) dioxane. Preferably, the liquid phase adsorption is carried out at a pressure ranging from atmospheric pressure to 20 kg/cm2 and at a temperature ranging from ambient temperature to 50° C. Preferably, the molecular sieves have a pore size of 10 Å. The process may further include regenerating the adsorbent by passing a flow of nitrogen gas through the adsorbent at a temperature ranging from 200 to 300° C. Alternatively, the process may further include regenerating the adsorbent by heating the adsorbent at a temperature ranging from 200 to 300° C. for a period of time which is effective to regenerate the adsorbent.
  • Fluidized Catalytic Cracking Process and Apparatus
    A fluidized catalytic cracking apparatus includes a riser containing a regenerated catalyst and adsorbent, and has a first inlet for introduction of high velocity steam, a second inlet for introduction of a feed stream containing heavy residual fractions with high concentrations of conradson coke, metals including vanadium and nickel, and additional poisons including nitrogen, a third inlet for introduction of an adsorbent, and a fourth inlet disposed above the third inlet means for introduction of a regenerated catalyst, the adsorbent having a particle size which is larger than that of the regenerated catalyst. A stripper is provided into which the riser extends for causing separation of a hydrocarbon fraction from spent catalyst and adsorbent, and a separator is connected to the stripper and has a base, an inlet at the base for introduction of steam in the upward direction so as to provide a transport velocity in the upward direction for the spent catalyst and cause a separation of the particles of the spent catalyst from the adsorbent in use. A regenerator is connected to the separator and has an outlet and is in flow communication with the fourth inlet for introduction of the regenerated catalyst into the riser. A burner is provided for receiving the adsorbent from the separator and for causing a regeneration thereof, the burner having an inlet for introduction of oxygen containing gas and an outlet in flow communication with the third inlet for introduction of the adsorbent into the riser. A lift line is connected between the separator and the regenerator for allowing a flow of the spent catalyst from the separator into the regenerator while leaving the adsorbent within the separator in a fluidized condition the lift line having a plurality of steam inlets disposed at different elevations along its length for introduction of steam to provide said transport velocity.
  • A Fluidized Catalytic Cracking Process
    A sequential processing for heavy petroleum residues is disclosed which uses a separate mixture of catalyst and adsorbent. The solid adsorbent and FCC (fluid catalytic cracking) catalyst particles differ significantly at least in particle size or density or both. The adsorbent preferably consist of calcined coke or metal oxides of Al, Si, or Mg having enhanced ability of selectively capture different impurities of the residual oil. The adsorbent particles first treat the residual hydrocarbons in the riser bottom and subsequently the actual catalyst takes care of catalytic cracking in the upper section of the riser. The spent solid mixture is fed to the catalyst separator which uses steam at sufficiently high velocity but at lower temperature to lift the catalyst particles out of the separator. Such a novel low temperature faster separation minimizes Vanadium mobility and deactivation of the catalyst. A net coke stream is withdrawn from the separator/burner especially while processing residues above 5 wt% CCR. This allows successful processing of even very heavy residues with CCR of 20 wt% and metals (vanadium + nickel) of 300 ppm. Without requiring higher catalyst make up or catalyst and adsorbent cooling.
  • Upgradation Of Undesirable Olefinic Liquid Hydrocarbon Streams
    A process for converting undesirable olefinic hydrocarbon streams to hydrogen and petrochemical feedstock e.g. light olefins in C2 -C4 range and aromatics especially toluene and xylenes, which comprises simultaneous cracking and reforming at olefin rich hydrocarbons using a catalyst consisting of dehydrogenating metal components, shape selective zeolite components and large pore acidic components in different proportions in a circulating fluidized bed reactor-regenerator system having reactor temperature within 450-750° C. and WHSV of 0.1-60 hour-1.
  • Process for the Preparation of a Catalyst Composite
    A process for preparing a hydrocarbon conversion catalyst for use in a Fluid Catalyst Cracking (FCC) unit includes the steps of preparing a modified alumina-silica composite by reacting alumina with an acid to obtain an acidified alumina, aging the acidified alumina for from 0.25 to 60 hours, adding a silica source to the acidified alumina to obtain the composite; preparing a dispersed precursor slurry of the modified alumina-silica composite, and a rare earth exchanged USY zeolite (REUSY) containing at least one rare earth oxide present in an amount ranging from 3.8 to 4.0 wt %, and optionally kaolin clay; spray-drying the slurry to obtain spherical particles; and subjecting the spherical particles to calcination.
  • Lubricant Composition for Internal Combustion Engines
    A lubricating oil composition for gasoline and diesel internal combustion engines includes a major portion of an oil of lubricating viscosity; from 0.1 to 20.0% w/w of a component A which is a sulfurized, overbased calcium phenate detergent derived from distilled, hydrogenated cashew nut shell liquid; and from 0.1 to 10.0% w/w of a component B which is an amine salt of phosphorodithioic acid derived from cashew nut shell liquid
  • Process for Preparing a Corrosion Inhibitor/ Metal Passivator Additive for Lubricant, Grease and Fuel Applications from Waste Refinery Streams
    This invention relates to a cost effective process for preparing a corrosion inhibitor/metal passivator additive for lubricant, grease and fuel applications from waste refinery streams, comprising reacting 2,5-dimercapto-1,3,4-thiadiazole either in powder form or in solution form in polar organic solvent, with disulphide oil obtained from Merox extraction/caustic wash of the refinery streams, in the presence or absence of redox agent.
  • FCC Process
    A sequential processing for heavy petroleum residues is disclosed which uses a separate mixture of catalyst and adsorbent. The solid adsorbent and FCC (fluids catalytic cracking) catalyst particles differ significant at least on particle size or density or both. The adsorbent preferably consist of calcined coke or metal oxides of Al, Si, or Mg having enhanced ability of selectively capture different impurities of the residual oil. The adsorbent particles first treat the residual hydrocarbons in the riser bottom end subsequently the actual catalyst tales care of catalytic cracking in the upper section of the riser. The spent solid mixture is fed to the catalyst separator which uses steam at sufficiently high velocity but at lower temperature to lift the catalyst particles out of the separator. Such a novel low temperature faster separation minimizes Vanadium mobility and deactivation of the catalyst. A net coke stream is withdrawn from the separator/burner especially while processing residues above 5 wt % CCR. This allows successful processing of even very heavy residues with CCR of 20 wt % and metals (vanadium & nickel) or 300 ppm, without requiring higher catalyst make up or catalyst and adsorbent cooling.
  • An Extraction Of Aromatics For Hydrocarbon Oil Using Furfural Co-Solvent Extraction Process
    An improved furfural extraction process for lube oil base-stock production from hydrocarbon oils containing aromatic type material by the addition of a solvent comprising of furfural and a co-solvent, said process being conducted in a continuous countercurrent extraction column that facilitates phase separation and increases the raffinate yield while maintaining the same raffinate quality measured by raffinate refractive index.
  • Process For Preparation Of Novel Mannich Bases From Hydrogenated And Distilled Cashew Nut Shell Liquid (Cnsl) For Use As Additive In Liquid Hydrocarbon Fuels
    A process for the preparation of Mannich condensation products from hydrogenated and distilled Cashew Nut Shell Liquid, amines and aldehydes which provides improved detergency in the gasoline. Optionally, a polymeric dispersant, a non-volatile hydrocarbon carrier fluid and a solvent may be included for protecting and removing buildup of deposits on carburetor surfaces and intake valve system of a gasoline powered internal combustion engine
  • Process for Preparing Rust Inhibitors from Cashew Nut Shell Liquid
    A process for the preparation of CNSL phenoxy carboxylic acid derivatives for use as an additive in a lubricant composition so as to impart improved rust inhibiting properties, including the steps of (a) partially hydrogenating distilled technical cashew nut shell liquid with palladium or nickel or platinum catalyst; to hydrogenate the olefinic chain; (b) reacting cashew nut shell liquid or partially hydrogenated technical cashew nut shell liquid with halogeno carboxylic acid derivatives to obtain unpolymerized cashew nut shell liquid phenoxy carboxylic acid derivatives, the reaction being carried out at a temperature ranging from 20 to 140° C. A lubricant containing a major proportion of a material selected from the group consisting of an oil of lubricating viscosity and a grease; and remainder an additive including CNSL phenoxy carboxylic acid derivative prepared by the foregoing process.
  • Process For Preparing Sodium Silicate Alkali Solution Depleted Of Sodium Salt And Enriched In Silica
    The present invention relates to an improved process for obtaining sodium silicate alkali solution depleted of sodium salt and enriched in silica from a mother liquor recovered after isolation of molecular sieves and more particularly, the present invention relates to a process for recycling mother liquor obtained after the isolation of molecular sieves for the preparation of fresh molecular sieves or as a binder for producing Fluid Catalytic Cracking (FCC) catalyst.
  • Device And Method For Non-Dispersive Contacting Of Liquid-Liquid Reactive System
    An apparatus for separating impurities from a liquid by a non-dispersive contacting of a liquid—liquid reactive systems, the liquids being immiscible with each other, having a cylindrical column separated into a first stage and a second stage, a plurality of modules of packed metallic fibers mounted in the first stage of the column on a support, a first distributor provided in the first stage of the column for distributing a first liquid located above the support such that the first liquid completely wets the fibers by capillary action and forms a film thereon, a second distributor fitted at a bottom portion of the second stage for distributing a second liquid containing impurities on to the metallic fibers, wherein the second liquid flows concurrently with said first liquid so that the impurities present in the second liquid react with the first liquid and dissolve therein and a separator connected to a bottom of said column separates the first liquid and purified second liquid.
  • Process For Conversion Of Hydrocarbons To Saturated Lpg And High Octane Gasoline
    The present invention relates to a process for the conversion of hydrocarbon streams with 95% true boiling point less than 400° C. to very high yield of liquefied petroleum gas in the range of 45-65 wt % of feed and high octane gasoline, the said process comprises catalytic cracking of the hydrocarbons using a solid fluidizable catalyst comprising a medium pore crystalline alumino-silicates with or without Y-zeolite, non crystalline acidic materials or combinations thereof in a fluidized dense bed reactor operating at a temperature range of 400 to 550° C., pressure range of 2 to 20 kg/cm2 (g) and weight hourly space velocity in range of 0.1 to 20 hour−1, wherein the said dense bed reactor is in flow communication to a catalyst stripper and a regenerator for continuous regeneration of the coked catalyst in presence of air and or oxygen containing gases, the catalyst being continuously circulated between the reactor-regenerator system.
  • Novel Antioxidant Composition For Motor Gasoline Fuel
    An antioxidant composition effective for stabilizing gasoline and gasoline components contains from approximately 50-95% by weight of at least one Mannich base and from approximately 5-50% by weight of at least one amine. The Mannich base is derived from p-substituted phenols or from cashew nut shell liquid.
  • Process for producing biodiesel and the product thereof
    Disclosed herein is a single pot process for producing biodiesel and the product thereof, using non-edible oil sources containing free fatty acid. The process comprises esterification and transesterification of non-edible vegetable oil sources containing free fatty acids in a single pot employing a water scavenger or a water adsorbent or a mixture thereof.
  • A Lubricating Grease Composition
    Lubricating grease compositions have a titanium complex grease component along with a mineral/synthetic oil-based component and a conventional soap or grease. The conventional soaps and greases may be lithium complex, calcium sulfonate, or aluminum complex-based, among others, with and without additives. The compositions are high performance greases, exhibiting improved drop point, extreme pressure, antiwear, oil separation, and shelf life properties.
  • Ready to Use seed composition & Process thereof
    The present disclosure provides a ready-to-use seed composition water, a source of silica, a source of alumina, and Na20, wherein the molar ratio of H20:Na20 ranges from 5 to 20, Na20:SiO2 ranges from 0.4 to 5 and SiO2:Al203 ranges from 1.3 to 5 used in the preparation of a synthetic faujasite zeolite which has high thermal stability and higher crystallite size. It further provides a process for preparing the ready-to-use seed composition for preparation of synthetic faujasite zeolite that requires lower crystallization time. The present disclosure provides a seed composition that does not require maturing time and a reaction gel composition that has low water and soda content. The present disclosure further provides a process for the preparation of synthetic faujasite zeolite by blending seed and reaction gel reaction composition to form a seed gel composition and subjecting it to crystallization.
  • Process for upgrading of Liquid Hydrocarbon Fuels
    Disclosed herein a process for upgrading the liquid hydrocarbon fuels by reducing aromatic content, sulfur content and nitrogen content wherein the process comprising isolating polycyclic aromatic hydrocarbon (PAH) transforming microbes and preparing biocatalyst by mutagenesis, contacting the biocatalyst with the liquid hydrocarbon fuel in an aqueous medium for transforming the aromatic, sulfur, and nitrogen containing compounds to polar substances, subjecting the mixture of biocatalyst and the liquid hydrocarbon fuel to a process of bioconversion, removing the polar substances by liquid-liquid extraction with a polar solvent to obtain dearomatized, desulphurised and denitrogenated liquid hydrocarbon fuel and recovering the upgraded liquid hydrocarbon fuel.
  • Method for Bioremediation of highly aromatic hydrocarbon wastes
    Disclosed herein is a method for biopile-based bioremediation of hydrocarbon waste with high aromatic content. The method comprises of isolating specific microorganisms and preparing microbial blend, preparing biopile, adding the microbial blend into the biopile, providing nutrient, aeration and watering of biopile.
  • A Fluidized Catalytic Cracking Process
    The present invention relates to a fluidized catalytic cracking process for cracking hydrocarbon feed having organo-sulfur compound as an impurity, said process comprising: adding a heavy metal poisoned spent catalyst to an equilibrium catalyst to obtain a composite circulating catalyst, wherein the heavy metal poisoned spent catalyst is added in an amount to maintain the activity of the circulating catalyst; and obtaining a fluidized catalytic cracked product. The present invention further relates to fluidized catalytic cracked product obtained by the process of the present invention. The sulfur content of the lluidized catalytic cracked product mainly gasoline which is boiling in the range of C5-250°C reduced by more than 20 % (wt/wt) and Research Octane number of the fluidized catalytic cracked product is increased by more than 1 unit.
  • A Process for simultaneous cracking of lighter and heavier hydrocarbon feed and system for the same
    The invention provides for a process and apparatus for simultaneous conversion of lighter and heavier hydrocarbon feedstocks into improved yields of light olefins in the range of C2 to C4, liquid aromatics in the range C6 to C8 mainly benzene, toluene, xylene and ethyl benzene and other useful products employing at least two different reactors operated in series with respect to catalyst flow and parallel with respect to feed flow under different regimes and process conditions with same catalyst system.
  • Method and Apparatus for Catalytic Cracking
    An apparatus for catalytic cracking of feedstock includes a first channel in which a feedstock is treated with an adsorbent to obtain a treated intermediate. The apparatus further comprises a separator-reactor vessel. The separator-reactor vessel includes an adsorbent separating region to remove the adsorbent from the treated intermediate. The separator-reactor vessel further includes a second channel connected to the adsorbent separating region. The treated intermediate is contacted with a catalyst in the second channel to produce a cracking yield. The second channel terminates in a catalyst separating region of the separator-reactor vessel. The catalyst is removed from the cracking yield in the catalyst separating region. The separator-reactor vessel further includes a physical partition disposed between the adsorbent separating region and the catalyst separating region to separate the two regions.
  • Method and Apparatus for Catalytic Cracking
    An apparatus for catalytic cracking of feedstock includes a first channel in which a feedstock is treated with an adsorbent to obtain a treated intermediate. The apparatus further comprises a separator-reactor vessel. The separator-reactor vessel includes an adsorbent separating region to remove the adsorbent from the treated intermediate. The separator-reactor vessel further includes a second channel connected to the adsorbent separating region.
  • A Process for simultaneous cracking of lighter and heavier hydrocarbon feed and system for the same
    The invention provides for a process and apparatus for simultaneous conversion of lighter and heavier hydrocarbon feedstocks into improved yields of light olefins in the range of C2 to C4, liquid aromatics in the range C6 to C8 mainly benzene, toluene, xylene and ethyl benzene and other useful products employing at least two different reactors operated in series with respect to catalyst flow and parallel with respect to feed flow under different regimes and process conditions with same catalyst systems.
  • A two stage gasifier for generating syngas
    The present subject matter describes a gasification system (100) for gasifying a variety of feedstocks. A first stage gasifier (105) receives a feedstock either from a first group of feedstocks or a second group of feedstocks or both. The first stage gasifier decomposes the received feedstock to produce a first product. A second stage gasifier (115) is connected to the first stage gasifier (105) for receiving the first product. In addition, the second stage gasifier (115) receives a feedstock either from a third group of feedstocks or a fourth group of feedstocks or both. The second stage gasifier (115) gasifies the first product and the received feedstock to produce syngas.
  • A Value Added Spent FCC Catalyst Composition & its Process of preparation
    A composition of a value added RFCC catalyst and a process of preparation of a composition for a dual function additive catalyst from a spent catalyst are disclosed. The value added spent FCC catalyst offers improved performance, options such as either employing as an additive for passivation of both vanadium and nickel and enhancing catalytic activity, for initial start-up or make-up for attrition losses. The value addition process does not harm any of physical properties of starting material with respect to ABD, attrition index, surface area and particle size distribution. Value added catalyst can be used in a range from 1-99 wt% in fluid catalytic cracking process in which, feeds may have higher metals and carbon.
  • Metal Passivator Additive and Process for Preparing
    The present invention relates to a metal passivator additive comprising: a rare earth component; alumina; clay; colloidal silica; and a zeolite having high silica to alumina ratio. The present invention also relates to a process for preparing a metal passivator additive, said process comprising: preparing a rare earth slurry by mixing rare earth component with water; obtaining an alumina gel by treating alumina slurry with an acid, wherein the alumina slurry is prepared by mixing alumina and water; mixing the alumina gel and the rare earth slurry to obtain a slurry mixture; adding a colloidal silica to the slurry mixture; preparing a clay slurry by mixing clay and a dispersant; combining the clay slurry and the slurry mixture to obtain a rare earth-binder-filler slurry; obtaining an additive precursor slurry by mixing a zeolite having high silica to alumina ratio, to the rare earthbinder-filler slurry; spray-drying the additive precursor slurry to obtain a spray-dried product; and calcining the spray-dried product to obtain the metal passivator additive.
  • A Process for the removal of metals from vegetable oils & animal fats
    The invention describes process for demetallation of vegetable oils and animal fats to reduce metal content below 1 ppm to make them suitable for hydroprocessing feedstocks. The process comprises acid treatment with very low concentration of acids, utilizing synergistic effect of phosphoric acid and citric acid, followed by counter-current treatment with clay without intermediate step of water washing and treatment with ion exchange resin.
  • Two stage fluid catalytic cracking apparatus & process for production of different hydrocarbons
    A two stage Fluid Catalytic Cracking process and an apparatus for simultaneous production of light olefins such as ethylene and propylene and middle distillate range hydrocarbons, wherein a first flow reactor, preferably a downer and a second flow reactor, preferably a riser are operating at varying reaction severities using different catalyst systems with the regenerated catalyst entering the reactors inlet through independent regenerators. Mild cracking of the fresh feedstock is carried out in the first flow reactor of short residence time and the effluent of first flow reactor is separated in an intermediate separator/fractionator followed by re-cracking of the C4 hydrocarbons and naphtha range hydrocarbons, preferably C5-150° C. from the second product separation section and unconverted hydrocarbons (370° C.+) of first flow reactor, in the second flow reactor at higher severity employing different catalyst system.
  • Bio-augmentation composition and use thereof for improving efficiency of effluent treatment plant /hydrocarbon processing plant
    The present invention provides a bio-augmentation composition for improving the hydrocarbon degradation efficiency of effluent treatment plant for hydrocarbon degradation in wastewater generated from hydrocarbon processing industry and a method thereof. The composition comprises a synergistic combination of selective microorganisms to develop a consortium enabling effective degradation of hydrocarbons present in wastewater and converting thereof into harmless and environment friendly substances. The invention also provides for the said microorganisms and their isolations.
  • Process for deep desulfurization of cracked gasoline with minimum octane loss
    The present invention provides a process for deep desulphurization of cracked gasoline with minimum octane loss of about 1-2 units. In this process full range cracked gasoline from FCC, Coker, Visbreaker etc is sent to Diolefin Saturation Reactor for selective saturation of diolefins. After saturation of diolefins, the stream is sent to Splitter for splitting into three cuts i.e. Light Cut (IBP-70° C.), Intermediate Cut (70-90° C.) and Heavy Cut (90-210° C.). The Light Cut which contains majority of the high octane olefins and mercaptan sulfur is desulfurized with caustic treatment using Continuous Film Contactor (CFC). The sulfur in the Intermediate Cut is also predominantly mercaptans and the cut can be desulfurized by caustic treatment using CFC along with Light cut or separately desulfurized before being sent for isomerization. The Heavy Cut containing mainly thiophinic sulfur compounds is treated either by using conventional HDS process or reactive adsorption process.
  • A process for production of C3 olefins in a fluid catalytic cracking unit
    A process for increasing the yield of C3 olefin in fluid bed catalytic cracking of hydrocarbon feed is disclosed. C4 fraction produced from the cracking of hydrocarbon feedstocks in the primary reaction zone, optionally with external source of c4 stream is fed into the stripper which acts as a secondary reaction zone at an elevated temperature and at optimum WHSV.
  • Novel adsorbent for removal of sulphur from diesel & gasoline like fuels & process for preparing the same
    A novel nano structured adsorbent composition for removal of sulfur from diesel and gasoline like fuels is disclosed. It is capable of removal of sulfur by reactive adsorption from most refractory sulfur species of diesel and gasoline like fuels. The process of removal of sulfur is carried out under hydrogen environment. The sulfur content of the treated fuel comes down to less than 5ppm.
  • A process for enhancing nickel tolerance of heavy hydrocarbon cracking catalysts
    The invention discloses a process for upgrading feed streams containing residual fractions with high concentrations of metals, more specifically nickel content upto 150ppm employing acidic catalysts comprising large pore rare earth faujsite zeolite component and pseudobohmeit component containing resid cracking component.
  • A Process for Producing Lipids Suitable for Biofuels
    The present invention provides a cost effective biotechnological process for production of bio-fuels from isolated and characterized microalgae. The algal strains used in the present invention having higher biomass, higher lipid productivity, higher pH and temperature tolerance.
  • Process for reduction of sulfur in FCC liquid products through the use of CO as a reducing agent
    Disclosed herein is an improved FCC process for converting normally liquid hydrocarbon feedstocks with simultaneous reduction of sulfur content in the liquid products obtained therefrom which comprises carrying out the cracking process in the presence of carbon monoxide gas as a reducing agent.
  • A Bio-assisted process for conversion of Carbon Di oxide to fuels and Hydrocarbons
    The present invention relates to a bio-assisted process for transforming carbon dioxide to fuels and chemicals. More particularly, the present invention relates to a process for producing fuels and chemicals using a novel microbial consortium in an electrobiochemical system.
  • An Environment Friendly Method for Disposal of Waste Plastics through Conversion of Polyethylene Terephthalate (PET) Polymers to Anti-Stripping Compounds
    A method for conversion of polyethylene terephthalate (PET) polymers to anti-stripping compounds for bitumen through a green chemistry approach is disclosed. The present invention also provides a method for safe and environment friendly large scale disposal of used PET polymer. The PET polymer is either recycled or virgin and is used as synthon. It is reacted with a polyamine, preferably tetraethylene pentamine in xylene solution, when the polyamine undergoes aminolysis reaction with PET without any catalyst and at a relatively low temperature in the range of 110c to 160c. The process achieves the maximum conversion efficiency of 100% into diamido mixture of compounds and produces no effluent.
  • Mosquito Larvicidal Oil composition
    Disclosed is a very effective non-toxic mosquito larvicidal oil (MLO) composition which eliminates mosquito larvae and pupae by suffocating them, when the composition is applied on stagnant water surface. It is bio-degradable as well as non-toxic to plant and animals, particularly fish, in the area of its application. It poses no danger to human beings because it does not enter into the human food chain. The MLO forms an unbreakable thin film on the water surface. This film prevents the larvae and pupae present in the water from breathing in oxygen from the air above. Consequently, they die of suffocation within a short period. lit is devoid of side effects like pesticide resistance, resurgence of pests and numerous undesirable effects on flora and fauna that are common in similar mosquito larvicidal oil compositions. The MLO is an optimized combination of mineral oils and surfactants emulsifiers for excellent spreading and film formation characteristics. The mineral oil can be paraffinic or naphthenic, hydrocracked or mixture of these. The surfactants/emulsifiers are required for the spontaneous spreading of the oil layer over water surface and stability of the oil film after application on water surface.
  • Internal Donors for Ziegler Natta Catalyst Systems and process for preparing the same
    A catalyst composition for use as precursor for zieglar-natta system, said catalyst composition comprising a combination of magnesium moiety, titanium moiety and an internal donor containing at least one 1,2-phenylenedioate compound.
  • Catalyst for Polymerization of Olefins and Process Thereof
    The present invention provides a process for preparation of a solid titanium catalyst component for use as pro-catalyst for a zieglar-natta catalyst system.
  • Organometallic compounds in solid form, process for preparing the same and use thereof
    The present invention provides a solid organomagnesium precursor having formula {Mg(OR’)X}.a{MgX2}.b{Mg(OR’)2}.c{R’OH}, wherein R’ is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5 : 0.01 – 0.5 : 0.01 - 5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins.
  • Bio-inoculant and use thereof for treatment of effluent
    The present invention relates to a bio-inoculant and its use for reduction of contaminants in effluents from processing industries
  • Precursor for catalyst, process for preparing the same and use thereof
    The present invention provides a liquid organomagnesium precursor having formula {Mg(OR’)X}.a{MgX2}.b{Mg(OR’)2}.c{R’OH}, wherein R’ is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.1- 99.8 : 0.1-99.8 : 0.1-99.8, and a process for preparing the same. The said process comprises contacting a magnesium source with an organohalide and alcohol in a solvent to form the liquid organomagnesium precursor. The present invention also provides a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins.
  • Preparation of Polymer Modified Bitumen (PMB) from Polyethylene Terephthalate (PET) derived Polyamido Amine
    The present invention relates a novel approach to prepare Polymer Modified Bitumen by using terephthalamide additives, derived from PET, for improving bitumen quality. Particularly, the present invention provides a process to utilize waste PET, which is a threat to environment and is available commercially in different physical forms, for conversion into industrially useful additive for bituminous product.
  • A process for production of C3 olefins in a fluid catalytic cracking unit
    A process for increasing the yield of C3 olefin in fluidized bed catalytic cracking of hydrocarbon feedstocks is disclosed. C4 fraction produced from the cracking of hydrocarbon feedstock in the primary reaction zone (riser), optionally with external source of C4 stream is fed into the stripper which acts as a secondary reaction zone at an elevated temperature and at an optimum WHSV. The elevated temperature is achieved by injecting a part of the regenerated catalyst from regenerator, which is at a higher temperature, directly into the stripper through a dedicated additional lift line. This raises the activity of catalyst inside the stripper. The direct injection of regenerated catalyst into the stripper, besides producing higher yields of propylene, improves the stripping efficiency leading to enhanced recovery of strippable hydrocarbons.
  • Organometallic compounds in solid form, process for preparing the same and use thereof
    The present invention provides a solid organomagnesium precursor having formula {Mg(OR′)X}.a{MgX2}.b{Mg(OR′)2}.c{R′OH}, wherein R′ is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins. The organomagnesium precursor is prepared as follows: At 0° C., magnesium in diethyl ether is reacted with the organohalide. After all magnesium has reacted, the calculated amount of alcohol was added and after the completion of addition, the ether was evaporated and a solid compound obtained.
  • Internal Donors for Ziegler Nata Catalyst Systems and process for preparing the same
    A catalyst composition for use as precursor for Ziegler-Natta catalyst system, said catalyst composition comprising a combination of magnesium moiety, titanium moiety and an internal donor containing at least one 1,2-phenylenedioate compound of structure (A). Also, the present invention provides a process for preparing the aforesaid catalyst composition. Further, the present invention provides a Ziegler-Natta catalyst system incorporating the aforesaid catalyst composition and a method for polymerizing and/or copolymerizing olefins using the Ziegler-Natta catalyst system.