Abstract: A double metal cyanide [DMC] catalyst and a method for the synthesis thereof at room temperature is disclosed herein. Various Schiff bases are incorporated as organic complexing agents in the DMC catalysts. The catalysts of the present invention are highly active for the ring opening polymerization (ROP) of epoxides in the presence of different H-functional initiators to produce polyether polyols (PEPO) with a wide range of average molecular weight (Mw) and polydispersity index (PDI).

Abstract: The present invention discloses a homo-polymeric and co-polymeric wax inhibitor (WI) useful for the flow of waxy crude oil and their synthesis thereof. The WI(s) comprises of any one of C14 to C24 fatty alcohol or mixture thereof in 2 mol % to 50 mol %, and an unsaturated organic acid i.e. acrylic acid, and poly alpha olefins i.e. poly alpha hexene, poly alpha octene, poly alpha decene, poly alpha dodecene of composition ranging from about 0.01 wt % to 20 wt % wherein the average molecular weight of poly alpha olefins used ranged from 1000 to 10000. A method of preparing a series of WI(s) with varying compositional ratios of the fatty alcohols, acrylic acid and polyalpha olefins targeting a wide range (C17 to C65 or beyond) of wax present in waxy crude oil is also disclosed.

Abstract: The present invention relates to a cryogenic process to produce crude helium from pretreated natural gas. The pretreated natural gas is processed in two flash stages using the helium free process stream as a stripping agent, and a distillation column with the identified operating conditions and process scheme to ensure 100% helium recovery with reduced capital and operating cost for producing the crude helium. The integration of the cryogenic process with the already known purification system to produce pure helium is demonstrated to ensure high helium recovery in a hybrid process.

Abstract: A copolymer, poly(thiophene-co-benzothiophene-co-dibenzothiophene), and method of preparation thereof. The copolymer, poly(thiophene-co-benzothiophene-co-dibenzothiophene), having a formula (I): wherein x=H or R, y=H or R, z=H or R, and n=500-58000, wherein R is selected from alkyl or alicyclic chain substituents, and Ar is an aromatic ring.

Abstract: The present invention relates to a process for the detoxification and concentration of xylose rich biomass derived liquid hydrolysate and its application as a substrate for the synthesis of crystalline and pure xylitol.

Abstract: The present invention discloses a photocatalytic process and methodology for the preparation of acetic acid by a hydrocarboxylation reaction of methanol using carbon dioxide under visible light irradiation. Importantly, the reaction occurred under ambient temperature and pressure condition using a readily available household LED lamp in the presence of a transition metal based molecular photocatalyst, homogeneous as well as supported to semiconductor support and a CO2-philic solvent without adding any external electron and proton donors.

Abstract: The present invention is related to a process for the conversion of used cooking oil into aromatics (BTEX) hydrocarbon as petrochemical building blocks. The process provides an aromatic rich hydrocarbon from used cooking oil in the presence and absence of steam/hydrogen over supported bimetallic alumina-silicates zeolites. The catalyst contains no precious metal entities and may contain one metal form zinc (Zn), a second metal (X), comprising at least one selected from cobalt (Co), gallium (Ga), chromium (Cr), Iron (Fe) and third elements from cerium (Ce), boron (B) supported on alumina-silicates zeolites. The present invention relates to a catalyst excluding novel metals to produce aromatics in a continuous fixed bed reactor system under atmospheric pressure. More particularly, the present invention relates to a low-temperature process to produce aromatic over alumina-silicates zeolites. The process provides used cooking oil conversion of 84-89% with aromatic selectivity of 87-91%.

Abstract: The Zeolite Socony Mobil-5 (ZSM-5) catalyst is ion-exchanged with metals (Mg, Ca, Sr, Ba, Ni, Cu, Zn, La.) and impregnated with Ni to synthesize Ni/M-ZSM-5. The present invention disclosed the selective catalytic dehydration of aqueous ethanol (2-99.9 wt %) and gas-stripped ethanol into ethylene in a fixed bed continuous flow reactor at a temperature of 120-300° C. by employing a Ni/M-ZSM1-5 catalyst.

Abstract: The present invention discloses a homo-polymeric and co-polymeric wax inhibitor (WI) useful for the flow of waxy crude oil and their synthesis thereof. The WI(s) comprises of any one of C14 to C24 fatty alcohol or mixture thereof in 2 mol % to 50 mol %, and an unsaturated organic acid i.e. acrylic acid, and poly alpha olefins i.e. poly alpha hexene, poly alpha octene, poly alpha decene, poly alpha dodecene of composition ranging from about 0.01 wt % to 20 wt % wherein the average molecular weight of poly alpha olefins used ranged from 1000 to 10000. A method of preparing a series of WI(s) with varying compositional ratios of the fatty alcohols, acrylic acid and polyalpha olefins targeting a wide range (C17 to C65 or beyond) of wax present in waxy crude oil is also disclosed.

Abstract: Higher grade VG bitumens are prepared particularly by blending of 0.1 to 20 wt % specific Sulfur-Based Polymeric Additives (SBPA) having MW 1,000 to 10,000 Dalton. The prepared higher grade VG bitumens have Kinematic Viscosity of from 200 cSt to 1000 cSt measured at 135° C. from Base bitumen (VG10) at a temperature from 100° C. to 140° C. and stirring in the range of 800 rpm to 1200 rpm for 30 minutes to 90 minutes for improving the properties of bitumens and to make higher grades of Bitumens (VG20, VG30, VG40) for industrial applications.

Abstract: Utilization of CO2 for the alkylation of aromatic hydrocarbons is one of the green and sustainable routes for the production of valuable alkylated aromatics like xylenes. Aspects of the present invention deal with the development of single-step catalytic process for the production of alkylated aromatics using CO2 as a carbon source and alkylation reagent and methylcyclohexane as a hydrogen atom donor as well as source of toluene. In presence of the metal functionalized zeolite catalyst, methylcyclohexane undergoes dehydrogenation to produce toluene and hydrogen; hydrogen reacts with CO2 to form active alkylating species which triggers the alkylation of toluene. Additionally, a novel process is disclosed for the production of xylene-rich alkylated aromatics from methylcyclohexane and CO2 using single multi-functional catalyst possessing dehydrogenation, hydrogenation and acid functionalities.

Abstract: Method for visible-light driven oxidation of aldehydes to carboxylic acid using carbon dioxide (CO2) as the oxidant in the absence of any catalyst are provided. In the disclosed process, aldehydes, when reacted with CO2 in an organic solvent, either in a batch reactor or in a continuous flow reactor, under conditions of ambient temperature and pressure, using a readily available household LED lamp, yield corresponding carboxylic acids along with the formation of carbon monoxide (CO) in the effluent gas.

Abstract: The present invention realtes to a process for the detoxification and concentration of xylose rich biomass derived liquid hydrolysate and its application as a substrate for the synthesis of crystalline and pure xylitol.

Abstract: The present invention discloses a Double Metal Cyanide (DMC) catalyst(s) useful for the production of polyether polyols (PEPO) and a less energy intensive room temperature method for the synthesis thereof. The catalyst(s) comprises of a DMC complex, an organic complexing agent, i.e., ethylenediaminetetraacetic acid (EDTA) and other co-complexing organic agents, e.g., t-BuOH, PEPO of composition ranging from about 1 to 10 wt %, wherein the average molecular weight of PEPO used ranged from 200 to 1000. A method of preparing a series of DMC catalyst(s) at room temperature with varying compositional ratios of the complexing and co-complexing agents targeting a wide range of PEPO of varying kinematic viscosity range is also disclosed. These DMC catalyst(s) are amorphous, highly active, and easily separable from product PEPO with recyclability/recoverability, making the product PEPO better industrially applicable and DMC catalyst more cost-effective.

Abstract: The present invention is related to a process for the conversion of used cooking oil into aromatics (BTEX) hydrocarbon as petrochemical building blocks. The process provides an aromatic rich hydrocarbon from used cooking oil in the presence and absence of steam/hydrogen over supported bimetallic alumina-silicates zeolites. The catalyst contains no precious metal entities and may contain one metal form zinc (Zn), a second metal (X), comprising at least one selected from cobalt (Co), gallium (Ga), chromium (Cr), Iron (Fe) and third elements from cerium (Ce), boron (B) supported on alumina-silicates zeolites. The present invention relates to a catalyst excluding novel metals to produce aromatics in a continuous fixed bed reactor system under atmospheric pressure. More particularly, the present invention relates to a low-temperature process to produce aromatic over alumina-silicates zeolites. The process provides used cooking oil conversion of 84-89% with aromatic selectivity of 87-91%.

Abstract: The present invention relates to a novel method for photocatalytic oxidation of allylic C—H bonds present in alkenes containing at least three carbon atoms. In this newly disclosed method, such alkenes, when reacted with carbon dioxide (CO2) in an organic solvent containing a catalyst comprising of a supported molecular complex of transition metal ions under conditions of ambient temperature and pressure using a readily available household LED lamp, yield oxygenated products. The developed method represents a unique way to use CO2 as an oxygen transfer agent to unsaturated organic compounds along with the formation of CO as a co-product using light as an energy source.

Abstract: Method for crude petroleum oil processing in Crude Distillation Unit is provided to eliminate the stripping steam in an Atmospheric Distillation Column (VDC) of CDU for a significant reduction in the CDU's operating cost and alleviating the corrosion in the overhead section of ADC. The present invention relates to a method of separating the components of crude petroleum oil. The proposed method utilizes the innovative application of process hydrocarbon vapour consisting of a lighter fraction of crude and natural gas. The conceptualized new schemes for downstream processing the Light and Heavy gas oil (LGO and HGO) distillates to meet their boiling specifications are also disclosed.

Abstract: The present invention relates to a cryogenic process to produce crude helium from pretreated natural gas. The pretreated natural gas is processed in two flash stages using the helium free process stream as a stripping agent, and a distillation column with the identified operating conditions and process scheme to ensure 100% helium recovery with reduced capital and operating cost for producing the crude helium. The integration of the cryogenic process with the already known purification system to produce pure helium is demonstrated to ensure high helium recovery in a hybrid process.

Abstract: A method for desulfurizing crude oil and sulfur rich petroleum refinery fractions is disclosed. The method includes feeding the crude oil and sulfur rich petroleum refinery fractions to a reactor. An oxidation catalyst is added to the crude oil and sulfur rich petroleum refinery fractions. The crude oil and sulfur rich petroleum refinery fractions and the oxidation catalyst are stirred to form co-polymers of sulfur-containing heterocyclic compounds. The co-polymers of sulfur-containing heterocyclic compounds are separated by filtration or by centrifugation.

Abstract: A double metal cyanide [DMC] catalyst and a method for the synthesis thereof at room temperature is disclosed herein. Various Schiff bases are incorporated as organic complexing agents in the DMC catalysts. The catalysts of the present invention are highly active for the ring opening polymerization (ROP) of epoxides in the presence of different H-functional initiators to produce polyether polyols (PEPO) with a wide range of average molecular weight (Mw) and polydispersity index (PDI).