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The hetero ring contains five members including carbon and chalcogen

Subclass of:

044 - Fuel and related compositions

044300000 - LIQUID FUELS (EXCLUDING FUELS THAT ARE EXCLUSIVELY MIXTURES OF LIQUID HYDROCARBONS)

044329000 - Heterocyclic carbon compound containing a hetero ring having chalcogen or nitrogen as the only ring hetero atoms

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
044350000 The hetero ring contains five members including carbon and chalcogen 34
20090313889PRODUCTION OF HYDROXYMETHYLFURFURAL - The invention provides a process for making hydroxymethylfurfural. A reaction mixture comprising a saccharide and a metal complex of an N-heterocyclic carbene is initially provided. The saccharide is then allowed to react at about 70° C. or below to form hydroxymethylfurfural. The saccharide may be a hexose or a mixture of hexoses, or a dimer, oligomer or polymer or copolymer of a hexose or a mixture thereof.12-24-2009
20100058650HYDROXYMETHYLFURFURAL ETHERS FROM SUGARS OR HMF AND MIXED ALCOHOLS - Accordingly, the current invention provides a method for the manufacture of a mixture of 5-hydroxymethylfurfural ethers by reacting a hexose-containing starting material or HMF with mixed alcohols in the presence of an acid catalyst.03-11-2010
20100083565MIXTURE OF FURFURAL AND 5-(ALKOXYMETHYL)FURFURAL DERIVATIVES FROM SUGARS AND ALCOHOLS - Accordingly, the current invention provides a method for the manufacture of a mixture of a furfural and a 5-(alkoxymethyl)furfural derivative by reacting a C5 and C6 sugar-containing starting material with an alcohol in the presence of an acid catalyst, followed by the hydrogenation and/or etherification of the mixture of furfural and 5-(alkoxymethyl)furfural to convert the aldehyde function of both 5-(alkoxymethyl)furfural and furfural into an alkoxymethyl function or methyl function.04-08-2010
20100212217Hydroxymethylfurfural Ethers from HMF and Olefins - The current invention provides a method for the manufacture of an ether of 5-hydroxymethylfurfural through hydroxy-alkoxy-addition by reacting 5-hydroxymethylfurfural with an olefin in the presence of an acid catalyst08-26-2010
20100218415HYDROXYMETHYLFURFURAL ETHERS FROM SUGARS AND HIGHER ALCOHOLS - Accordingly, the current invention provides a method for the manufacture of an ether of 5-hydroxymethylfurfural by reacting a hexose-containing starting material with a higher alcohol in the presence of an acid catalyst, and at a temperature in the range of from 125 to 250 degrees Centigrade.09-02-2010
20100218416HYDROXYMETHYLFURFURAL ETHERS FROM SUGARS OR HMF AND BRANCHED ALCOHOLS - The current invention provides a method for the manufacture of an ether of 5-hydroxymethylfurfural by reacting a hexose-containing starting material with a branched C3-C20 monoalcohol in the presence of a catalytic or sub-stoichiometric amount of an acid catalyst.09-02-2010
20100319243COMPOSITIONS COMPRISING COMBUSTION IMPROVERS AND METHODS OF USE THEREOF - The present disclosure relates to a gasoline combustion improver comprising an organic nitro compound with C—NO12-23-2010
20110107659FUEL COMPOSITION - The invention provides a fuel composition comprising a ring-hydrogenated alkyl furfuryl ether of the general formula (I): (I) R″-TF-CH2-O—R wherein TF represents a 2,5-disubstituted tetrahydrofuran ring, wherein each R independently represents a hydrocarbyl group having from 1 to 20 carbon atoms and wherein each R″ independently represents a methyl group, a hydroxymethyl group, the product of an aldol condensation reaction or an alkoxymethyl group of the general formula (II): (II) —CH2-O—R′ wherein each R′ independently represents a hydrocarbyl group having from 1 to 20 carbon atoms. The invention also provides novel and useful ring-hydrogenated alkoxymethyltetrahydrofuran ethers of the general formula (I) above. Moreover, these ring-hydrogenated alkoxymethyltetrahydrofuran ethers disclosed herein have never been used as fuel component, and therefore the use of these ethers has also been claimed as an invention. A further embodiment of the current invention is the process for preparing these components. Finally, the use of a 5-(alkoxymethyl)furfural, and/or a 2,5-bis(alkoxymethyl)furan as hydrogen storage molecules, in particular for fuel purposes is claimed as a further embodiment of the current invention.05-12-2011
20110138681PRODUCTION OF RENEWABLE BIO-GASOLINE - A process and system for separating bio-gasoline, bio-diesel and bio-fuel oil fractions from a bio-oil, and for producing a renewable gasoline including at least in part the bio-gasoline fraction, is provided. The process comprises separating bio-oil into a bio-gasoline fraction and a heavy fraction based on their boiling points. At least a portion of the bio-gasoline fraction is directly blended with a petroleum-derived gasoline, without any prior hydrotreatment, to thereby provide a renewable gasoline composition.06-16-2011
20110173877PROCESS FOR PREPARING A HYDROCARBON OR MIXTURE OF HYDROCARBONS - A process for preparing a hydrocarbon or mixture of hydrocarbons comprising the steps of 07-21-2011
201103028265-SUBSTITUTED 2-(ALKOXYMETHYL)FURANS - The present invention concerns a method for the manufacture of a 5-substituted 2-(alkoxymethyl)furan (or a mixture of such furans) by reacting a starting material comprising at least a 5-substituted furfural with hydrogen in the presence of an alcohol and a catalyst system.12-15-2011
20140075830Biofuel containing furanic compounds and alkoxy benzene compounds and the process for obtaining these compounds from sugar cane by hydrolysis of cellulose, sugars and lignin in ionic liquids - A biofuel consisting of a mixture of furanic compounds and polymethoxy benzene compounds which can be mixed with standard fuel consisting in hydrocarbons, and the process to obtain these compounds from sugar cane by converting cellulose, hemicellulose and sugars in furan derivatives and levullinic acid esthers and by converting lignin in alkoxy benzene compounds by hydrolysing the cellulose and lignin of sugar cane first in a mixture of N alkyl imidazolium chloride, hydrochloric acid 37% and an alcohol, dehydrating pentoses and hexoses so obtained from cellulose, stabilising the aldehyde groups as acetal and stabilising the phenolic hydroxyls obtained from lignin as alkyl ethers.03-20-2014
20150047251FUELS AND FUEL ADDITIVES COMPRISING ESTER DERIVATIVES OF 5-METHYL-2-FUROIC ACID - Ester derivatives of furoic acids and in particular of 5-methyl-2-furoic acid can be used as fuel as fuel additives. Such esters can be used to displace crude oil products such as gasoline, diesel, jet fuel, etc. As fuel additives, such esters had been shown to improve the performance of spark ignition internal combustion engines, compression ignition internal combustion engines. In addition, testing shows indications that said molecule will improve the performance of air breathing engines as well.02-19-2015
20150376523INTEGRATED PROCESS FOR THE PREPARATION OF COMPOUNDS USEFUL AS FUEL COMPONENTS - The invention relates to an integrated process for the production of fuel components starting from materials of a biological origin which comprises: (A) transformation of glycerine into an alkoxy-propanediol having formula RO—CH12-31-2015
044351000 Acyclic chalcogen bonded directly to ring carbon of the hetero ring (e.g., five-membered lactones, anhydrides, sorbitans, etc.) 13
20090235576HYDROCARBYL SUCCINIC ACID AND HYDROCARBYLSUCCINIC ACID DERIVATIVES AS FRICTION MODIFIERS - The present invention relates to hydrocarbyl succinic acid and hydrocarbylsuccinic acid derivatives as friction modifiers for gasolines.09-24-2009
20100064574DIESEL CYCLE FUEL COMPOSITIONS CONTAINING DIANHYDROHEXITOLS AND RELATED PRODUCTS - Diesel cycle fuel compositions are described containing at least one dianhydrohexitol compound according to the general formula 2 and/or its03-18-2010
20100299991Hydroxymethylfurfural Ethers from Sugars and Olefins - The current invention provides a method for the manufacture of an ether of 5-hydroxymethylfurfural by reacting a hexose-containing starting material with an olefin in the presence of an acid catalyst12-02-2010
20110302827Inhibiting Stress Corrosion Cracking of Metal Exposed to Moderate to High Concentrations of Ethanol - An effective stress corrosion cracking (SCC) inhibiting amount of a corrosion inhibitor is added into a blend of fuel and ethanol that contacts a metal, wherein the corrosion inhibitor is an organic acid selected from citric acid, ascorbic acid, succinic acid, pyruvic acid, maleic acid, oxaloacetic acid, oxalosuccinic acid, ketoglutaric acid, isocitric acid, malic acid, aconitic acid, fumaric acid, isomers of these organic acids, and a combination thereof. For example, the corrosion inhibitors inhibit stress corrosion cracking of pipeline grade metal pipe at ethanol concentrations greater than fifteen percent. In one embodiment, the corrosion inhibitor is added into a blend of fuel and ethanol flowing through a pipeline at a plurality of injection points spaced apart along the length of the pipeline. In one option, the corrosion inhibitor is ammoniated to form the ammonium salt of the organic acid. In another option, the foregoing corrosion inhibitors are used in combination with one or more conventional corrosion inhibitors in an amount that is effective to inhibit general corrosion.12-15-2011
20120247001COPOLYMER AND USE THEREOF FOR IMPROVING THE COLD FLOW PROPERTIES OF MIDDLE DISTILLATE FUELS - A copolymer obtainable by free-radical copolymerization of 10-04-2012
20120317874Nitrogen Free Deposit Control Fuel Additives - The present invention provides a nitrogen-free fuel detergent additive, fuel additive compositions containing the same, and fuel compositions containing the same, for use in internal combustion engines, where the additive is the reaction product of (i) hydrocarbyl phenol, cresol or similar material and (ii) a aldehyde, in the presence of an optional catalyst, wherein the additive provides acceptable engine deposit control that is comparable and/or better than the deposit control provided by nitrogen-containing fuel additives.12-20-2012
20130212931BIOFUEL HAVING IMPROVED COLD FLOW PROPERTIES - A biodiesel may be prepared using an admixture of petroleum diesel and an algal derived hydrotreated renewable diesel which can be treated with petroleum diesel cold flow additives. The resulting diesel fuel may be employed even in cold climates despite the high paraffin content and high degree of saturation of the hydrotreated renewable diesel component of the fuel.08-22-2013
20130239465Cold Flow Improvement of Distillate Fuels Using Alpha-Olefin Compositions - The cold flow of middle distillate fuels may be improved by adding an effective improving amount of one or more alpha-olefin compositions. The compositions include, but are not necessarily limited to, polymers of alpha-olefins per se, copolymerized or grafted alpha-olefins with maleic anhydride, acrylic acid, vinyl acetate, alkyl acrylates, methacrylic acid, and/or alkyl methacrylates. These resulting copolymers or grafted polymers may be blended with alkylphenol-formaldehyde resins, which in turn may be blended with ethylene-vinyl acetate (EVA) copolymer. In a non-limiting example, the cold filter plugging point (CFPP) may be synergistically improved as compared with the expected additive effect of using the components separately.09-19-2013
20140101988Fuels And Fuel Additives Production From Glycerol Conversion Using A Monohydric Alcohol And Heterogeneous Catalysis - The present disclosure relates to a method of converting glycerol into organic reaction products. The method may include mixing glycerol with a monohydric alcohol. The mixture of glycerol and monohydric alcohol is then reacted in the presence of a heterogeneous nano-structured catalyst, wherein the monohydric alcohol is present at subcritical/supercritical temperatures and pressures. This converts the glycerol into one or more reaction products, wherein the reaction products include an oxygenated organic reaction product. Ninety percent or greater of the glycerol is converted.04-17-2014
20140250771Multi-Purpose Paraffin Additives for Deposit Control, Anti-Settling and Wax Softening in Oil-Based Fluids - An additive may be added to an oil-based fluid having at least one wax foulant therein. The additive may be or include an alpha olefin copolymer, an alkyl phenol-formaldehyde resin, an alkyl acrylate, a polyalkyl methacrylate, ethylene vinyl acetate co-polymer, ethylene vinyl acetate terpolymer, imidazoline, and combinations thereof. The additive may alter at least one property of the wax foulant as compared to an otherwise identical oil-based fluid absent the additive. The altered property may be or include the amount of wax foulant deposited, the amount of paraffinic wax dispersed, settling rate of the paraffinic wax foulant, viscosity of the paraffinic wax foulant, shape of the paraffinic wax foulant, such as but not limited to softening the wax foulant, and combinations thereof.09-11-2014
20150113859USE OF POLYALKYLENE GLYCOL TO REDUCE FUEL CONSUMPTION - The use of a polyalkylene glycol of formula HO—(A—O)04-30-2015
20160160140COMPOSITION FOR SURFACE VOLTAGE REDUCTION IN DISTILLATE FUEL - Additive composition mixtures and methods for synergistically maintaining low surface voltages of distillate fuels that include a synergistic conductivity improver additive composition for a distillate fuel. The additive composition includes: A) a mixture of (i) alkenyl polysulfone polymer, (ii) C16-C24 substituted maleic/polyamine copolymer, (iii) sulfonic acid, and (iv) aromatic solvent; and B) a mixture of (i) alkenyl polysulfone polymer, (v) polymeric reaction product of a C8-C18 aliphatic amine or diamine with epichlorohydrin; (iii) sulfonic acid, (iv) aromatic solvent; and optionally (vi) a quaternary ammonium compound. The additive composition contains from 30 to 60 wt. % component (A) and from 30 to 60 wt. % component (B) based on a total weight of the additive composition.06-09-2016
20170233670Additives For Low-Sulfur Marine Diesel08-17-2017
044352000 Ring carbons of the hetero ring are unsubstituted or hydrocarbyl substituted only 7
201002122185-(SUBSTITUTED METHYL) 2-METHYLFURAN - The current invention provides a method for the manufacture of 5-(substituted methyl) 2-methylfuran by reacting 5-(substituted methyl) furfural with hydrogen and a catalyst system, comprising of one or more catalysts. Within the scope of the current invention is the use of 5-(substituted methyl) furfural, and in particular 5-hydroxymethylfurfural and the ethers or esters thereof, which may be obtained from C6 sugars.08-26-2010
20100307050One-step catalytic conversion of biomass-derived carbohydrates to liquid fuels - The invention relates to a method for manufacture of hydrocarbon fuels and oxygenated hydrocarbon fuels such as alkyl substituted tetrahydrofurans such as 2,5-dimethyltetrahydrofuran, 2-methyltetrahydrofuran and mixtures thereof. The method generally entails forming a mixture of reactants that includes carbonaceous material water, a metal catalyst and an acid reacting that mixture in the presence of hydrogen. The reaction is performed at a temperature and for a time sufficient to produce a furan type hydrocarbon fuel. The process may be adapted to provide continuous manufacture of hydrocarbon fuels such as a furan type fuel.12-09-2010
20110000124GASOLINE COMPOSITIONS - A gasoline composition is provided comprising: 01-06-2011
20110302828DIESEL FUEL ADDITIVE - A diesel fuel additive composition, a fuel containing the fuel additive, a method for improving diesel engine performance using the additive and a method for making the additive for diesel engines having a high pressure fuel injection system. The fuel additive has a number average molecular weight (M12-15-2011
20110308143COMPOSITION FOR USE AS A FUEL OR FUEL ADDITIVE IN A SPARK IGNITION ENGINE, ITS MANUFACTURE AND USE - Embodiments of a composition useful as a fuel or fuel additive are provided. Certain disclosed embodiments of the composition comprise petroleum distillate, at least one alcohol having a ratio of between about 1 to about 4 carbon atoms to 1 hydroxyl functional group, at least one oxygenate, optionally, at least one lubricating oil, optionally, at least one water tolerance adjustor and optionally at least one terpene, wherein the oxygenate has a flash point between about −10° C. and about −50° C., has at least one oxygenated functional group, and is soluble in the composition.12-22-2011
20150113860FUEL COMPOSITIONS COMPRISING HYDROPHOBIC DERIVATIVES OF GLYCERINE - The object of the present invention relates to a composition that can be used as fuel comprising: at least one hydrocarbon mixture at least one hydrophobic ketal or acetal of glycerine. Said composition can be advantageously used as fuel for diesel or gasoline engines.04-30-2015
20150353854SYNTHESIS OF FUELS AND CHEMICALS FROM SUGARS - Methods to synthesize useful alcohol and aromatic hydrocarbon products from sorbitol derived from sugars are described. Sorbitol is dehydrated to form furans such as 2-acetylfuran which is hydrogenated to form hexanols, ethyl tetrahydrofuran, etc useful as fuels and chemicals for industry and commerce. Sorbitol may also be heated over a dehydrating catalyst to form aromatic hydrocarbons useful as fuels.12-10-2015
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