From Nonhydrocarbon Feed Patents (Class 585/733)
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Publication number: 20080300434Abstract: Processes and reactor systems are provided for the conversion of oxygenated hydrocarbons to hydrocarbons, ketones and alcohols useful as liquid fuels, such as gasoline, jet fuel or diesel fuel, and industrial chemicals. The process involves the conversion of mono-oxygenated hydrocarbons, such as alcohols, ketones, aldehydes, furans, carboxylic acids, diols, triols, and/or other polyols, to C4+ hydrocarbons, alcohols and/or ketones, by condensation. The oxygenated hydrocarbons may originate from any source, but are preferably derived from biomass.Type: ApplicationFiled: March 7, 2008Publication date: December 4, 2008Inventors: Randy D. Cortright, Paul G. Blommel
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Publication number: 20080300435Abstract: Processes and reactor systems are provided for the conversion of oxygenated hydrocarbons to hydrocarbons, ketones and alcohols useful as liquid fuels, such as gasoline, jet fuel or diesel fuel, and industrial chemicals. The process involves the conversion of mono-oxygenated hydrocarbons, such as alcohols, ketones, aldehydes, furans, carboxylic acids, diols, triols, and/or other polyols, to C4+ hydrocarbons, alcohols and/or ketones, by condensation. The oxygenated hydrocarbons may originate from any source, but are preferably derived from biomass.Type: ApplicationFiled: March 7, 2008Publication date: December 4, 2008Inventors: Randy D. Cortright, Paul G. Blommel
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Patent number: 7459597Abstract: A feedstock originating from renewable sources is converted to branched and saturated hydrocarbons without heteroatoms in the diesel fuel distillation range by skeletal isomerisation and deoxygenation carried out by hydrodeoxygenation or alternatively by combined decarboxylation and decarbonylation reactions, whereby the consumption of hydrogen is decreased.Type: GrantFiled: December 12, 2006Date of Patent: December 2, 2008Assignee: Neste Oil OyjInventors: Eija Koivusalmi, Juha Jakkula
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Publication number: 20080293992Abstract: A process for the preparation of n-heneicosane is disclosed. The process comprises (a) reacting 2,4-alkaneanedione with 1-bromooctadecane in absolute ethanol in the presence of 18-crown-6 as catalyst to produce 2-heneicosanone; and (b) reducing said 2-heneicosanone using hydrazine hydrate and potassium hydroxide in ethylene glycol to obtain n-heneicosane.Type: ApplicationFiled: June 23, 2005Publication date: November 27, 2008Inventors: Kumaran Ganesan, Ramesh Chandra Malhotra, Ambati Narasimha Rao, Krishnamurthy Sekhar
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Publication number: 20080269352Abstract: A process is provided for the production of linear saturated alkanes from one or more primary alcohols, wherein the carbon chain of the one or more primary alcohols has one carbon atom more than the alkane, including conducting reductive dehydroxymethylation of one or more primary fatty alcohols containing 8 to 24 carbon atoms, at a temperature ranging from 100 to 300° C. and pressures from 1 to 250 bar in the presence of hydrogen and a catalyst, and removing water formed during the reaction.Type: ApplicationFiled: December 5, 2006Publication date: October 30, 2008Inventors: Jurgen Falkowski, Markus Dierker, Michael Neuss, Karl Heinz Schmid, Stephan Wurkert, Lars Zander
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Patent number: 7432410Abstract: At least one selected from the group consisting of methanol and dimethyl ether, and hydrogen are reacted in the presence of a catalyst for producing a liquefied petroleum gas in which an olefin-hydrogenation catalyst component is supported on a zeolite, to produce a hydrocarbon containing propane or butane as a main component, i.e., a liquefied petroleum gas.Type: GrantFiled: August 30, 2004Date of Patent: October 7, 2008Assignee: Japan Gas Synthesize, Ltd.Inventors: Kenji Asami, Kaoru Fujimoto, Sachio Asaoka, Xiaohong Li
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Patent number: 7429281Abstract: A method for manufacturing bio-diesel oil in the present invention uses single-carbon alkane compounds to reform into intermediate alkanes to achieve a synthetic alkylation matter. The synthetic alkylation matter is mixed with plant oil or mixed with alkyl fatty acid derivative from fatty acid of the plant oil into a mixture. Additionally, additives such stabilizer, preservatives, etc.Type: GrantFiled: August 11, 2004Date of Patent: September 30, 2008Inventor: Oliver Wu
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Patent number: 7368625Abstract: A catalyst or precursor thereto comprising cobalt and/or a cobalt compound on a transition alumina support having a total cobalt content of at least 41% by weight and a cobalt surface area, after reduction, greater than 25 m2 per gram of total cobalt. The catalyst or precursor may be made by slurrying a transition alumina powder having a pore volume of at least 0.7 ml/g with an aqueous cobalt ammine carbonate complex and heating the slurry to decompose the complex.Type: GrantFiled: June 28, 2005Date of Patent: May 6, 2008Assignee: Johnson Matthey PLCInventors: Martinus G. Lok, Gordon J. Kelly, Gavin Gray
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Patent number: 7348464Abstract: A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over a synthetic crystalline alumino-silicate catalyst, such as a ZSM-5 zeolite, at a temperature of from about 150° C. to about 450° C. so as to form higher molecular weight hydrocarbons and hydrobromic acid vapor. Propane and butane which comprise a portion of the products may be recovered or recycled back through the process to form additional C5+ hydrocarbons. Various methods are disclosed to remove the hydrobromic acid vapor from the higher molecular weight hydrocarbons and to generate bromine from the hydrobromic acid for use in the process.Type: GrantFiled: April 8, 2005Date of Patent: March 25, 2008Assignee: Marathon Oil CompanyInventor: John J. Waycuilis
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Patent number: 7311815Abstract: A method of preparing high linear paraffin or high end-chain monomethyl content products is accomplished by converting synthesis gas in a Fischer-Tropsch reaction to hydrocarbon products. These may be hydrotreated to provide an n-paraffin content of greater than 50% by weight, with substantially all branched paraffins being monomethyl end-chain branched paraffins. At least one non-linear paraffin isomer, which may be a monomethyl paraffin isomer, may be separated from the hydrocarbon products through distillation to provide an n-paraffin product having an n-paraffin content percentage by weight of the n-paraffin product that is greater than the initial n-paraffin content.Type: GrantFiled: April 30, 2003Date of Patent: December 25, 2007Assignee: Syntroleum CorporationInventor: Armen N. Abazajian
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Publication number: 20070282151Abstract: Hydrocarbon liquids and olefins can be made from methane with greater efficiency than previously available, by converting methane into methanesulfonic acid (MSA), then converting the MSA into a reactive anhydride called sulfene, H2C?SO2. Sulfene will exothermically form ethylene, an olefin. It also can insert methylene groups (—CH2—) into hydrocarbon liquids, to make heavier and more valuable liquids. Other options are disclosed for improved methods of making MSA (such as by using di(methyl-sulfonyl) peroxide as a radical initiator), for converting MSA into products such as dimethyl ether (DME), and for using DME as a “peak shaving” gas that can be injected into natural gas supply pipelines with no disruptions to end-use burners.Type: ApplicationFiled: May 19, 2006Publication date: December 6, 2007Inventor: Alan K. Richards
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Patent number: 7297825Abstract: A catalyst for producing a liquefied petroleum gas according to the present invention comprises a Pd-based methanol synthesis catalyst component and a ?-zeolite catalyst component. It can be used in a reaction of carbon monoxide and hydrogen to give a hydrocarbon containing propane or butane as a main component, i.e., a liquefied petroleum gas, with high activity, high selectivity and high yield. Furthermore, the catalyst has a longer catalyst life with less deterioration.Type: GrantFiled: August 30, 2004Date of Patent: November 20, 2007Assignee: Japan Gas Synthesize, Ltd.Inventors: Kaoru Fujimoto, Kenji Asami, Sachio Asaoka, Xiaohong Li, Qianwen Zhang
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Publication number: 20070260102Abstract: The process described by this invention involves the hydroconversion of vegetable oils appropriately selected for the production of N-paraffins, through hydrotreatment of a stream of vegetable hydrocarbon oils in and/or natural fats that may be used in a pure state or in a mixture with mineral hydrocarbon oil. This mixture flow is submitted to the process of hydrotreatment, obtaining as a result, a product flow with an elevated content of N-paraffins in the range of C10-C-13. This process provides an alternative to the usual process that uses a mineral hydrocarbon oil load (petroleum kerosene of paraffin base) to produce C10-C13 N-paraffins that are raw materials for the production of detergents (LAB), being, therefore, especially advantageous for use in situations where kerosene is a limiting factor for producing N-paraffins, resulting in a product of good quality with a reasonable gain in the production of N-paraffins.Type: ApplicationFiled: April 17, 2007Publication date: November 8, 2007Applicant: PETROLEO BRASILEIRO S.A.-PETROBRASInventors: Fernando Antonio Duarte Santiago, Wlamir Soares Nogueira, Anita Eleonora Ferreira Fontes, Lelia Maria Ximenes Lowe, Jefferson Roberto Gomes
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Patent number: 7259286Abstract: An attrition resistant precipitated bulk iron catalyst is prepared from iron oxide precursor and a binder by spray drying. The catalysts are preferably used in carbon monoxide hydrogenation processes such as Fischer-Tropsch synthesis. These catalysts are suitable for use in fluidized-bed reactors, transport reactors and, especially, slurry bubble column reactors.Type: GrantFiled: August 28, 2001Date of Patent: August 21, 2007Assignees: Research Triangle Institute, The University of Pittsburgh-of the Commonwealth System of Higher EducationInventors: Kandaswamy Jothimurugesan, James G. Goodwin, Jr., Santosh K. Gangwal
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Patent number: 7244867Abstract: A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over a synthetic crystalline alumino-silicate catalyst, such as a ZSM-5 zeolite, at a temperature of from about 150° C. to about 400° C. so as to form higher molecular weight hydrocarbons and hydrobromic acid vapor. Hydrobromic acid vapor is removed from the higher molecular weight hydrocarbons. A portion of the propane and butane is removed from the higher molecular weight hydrocarbons and reacted with the mixture of alkyl bromides and hydrobromic acid over the synthetic crystalline alumino-silicate catalyst to form C5+ hydrocarbons.Type: GrantFiled: April 16, 2004Date of Patent: July 17, 2007Assignee: Marathon Oil CompanyInventor: John J. Waycuilis
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Patent number: 7087804Abstract: The present invention relates to the use of a primarily nitrogen containing blanketing agent from the air separation unit of a Gas To Liquids, Heavy Hydrocarbon Conversion, or Methanol Synthesis Facility on transport vessels. The primarily nitrogen containing blanketing agent is used to reduce corrosion, reduce product biodegradation and oxidation, control invasive species, and prevent fires and explosions by reducing oxygen content. Accordingly, the present invention relates to integrated processes for producing hydrocarbonaceous products and using a primarily nitrogen containing blanketing agent supplied from the process in shipping the products.Type: GrantFiled: June 19, 2003Date of Patent: August 8, 2006Assignee: Chevron U.S.A. Inc.Inventor: Dennis J. O'Rear
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Patent number: 7030284Abstract: Disclosed is a method and reactor system for converting oxygenate and/or olefin contaminants in a methanol to olefin reactor system product effluent to hydrocarbons, including paraffin compounds, preferably over a sulphided catalyst of the type Nickel or Cobalt combined with Molybdenum or Tungsten. In one embodiment, the oxygenate-containing stream to be hydrogenated comprises one or more of the following streams, alone or in combination: a quench tower bottoms stream, a water absorption unit bottoms stream, a C4+ stream, and/or a C5+ stream.Type: GrantFiled: August 20, 2002Date of Patent: April 18, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventor: John Richard Shutt
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Patent number: 6987134Abstract: This process uses two catalysts instead of one, converting CO2 into C8H18. Addition of a NaCl catalyst to a Ni catalyst improves the efficiency of Fischer's process because the salt catalyst retains humidity. Furthermore, chlorine opens chemical chains and sodium prevents crystals of oxygen from covering the Ni catalyst. If we are equipped to produce CO2 from biogas or smoke, we can recycle this CO2 and yield a useful liquid. In fact, recycling CO2 into a synthetic crude hydrocarbon, octane, contributes to clean air and to produce a valuable source of energy. Because CO2 is a renewable resource, this process favors a lasting economic development.Type: GrantFiled: July 1, 2004Date of Patent: January 17, 2006Inventor: Robert Gagnon
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Patent number: 6984765Abstract: The present invention is a separation process for producing a methanol, ethanol and/or dimethyl ether stream from a first stream containing C3+ hydrocarbons. The first stream comprises C3+ hydrocarbons, methanol, ethanol and/or dimethyl ether. The process comprises the step of passing the first stream through an adsorbent bed having a crystalline microporous material that preferentially adsorbs methanol, ethanol and/or dimethyl ether over the C3+ hydrocarbons.Type: GrantFiled: September 8, 2003Date of Patent: January 10, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Sebastian C. Reyes, Venkatesan V. Krishnan, Gregory J. DeMartin, John Henry Sinfelt, Karl G. Strohmaier, Jose Guadalupe Santiesteban
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Patent number: 6953873Abstract: Disclosed is a method of producing hydrocarbons from oxygenated hydrocarbon reactants, such as glycerol, glucose, or sorbitol. The method can take place in the vapor phase or in the condensed liquid phase (preferably in the condensed liquid phase). The method includes the steps of reacting water and a water-soluble oxygenated hydrocarbon having at least two carbon atoms, in the presence of a metal-containing catalyst. The catalyst contains a metal selected from the group consisting of Group VIIIB transitional metals, alloys thereof, and mixtures thereof. These metals are supported on supports that exhibit acidity or the reaction is conducted under liquid-phase conditions at acidic pHs. The disclosed method allows the production of hydrocarbon by the liquid-phase reaction of water with biomass-derived oxygenated compounds.Type: GrantFiled: May 9, 2003Date of Patent: October 11, 2005Assignee: Wisconsin Alumni Research FoundationInventors: Randy D. Cortright, James A. Dumesic
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Patent number: 6860909Abstract: A blend useful as a diesel fuel, as well as a method for its production, comprising a high quality Fischer-Tropsch derived distillate boiling in the range of a diesel fuel blended with a cracked stock boiling in the range of a diesel fuel wherein the final blend contains 10-35 wt. % aromatics and 1-20 wt. % polyaromatics and produces low regulated emissions levels.Type: GrantFiled: June 13, 2003Date of Patent: March 1, 2005Assignee: ExxonMobil Research and Engineering CompanyInventors: Paul Joseph Berlowitz, Robert Jay Wittenbrink, Bruce Randall Cook
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Patent number: 6841063Abstract: The present invention relates to a new crystalline zeolite SSZ-53 prepared by using phenylcycloalkylmethyl ammonium cations as structure directing agents.Type: GrantFiled: July 10, 2003Date of Patent: January 11, 2005Assignee: Chevron U.S.A. Inc.Inventor: Saleh Elomari
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Patent number: 6822131Abstract: Clean distillate useful as a diesel fuel or diesel blending stock is produced from Fischer-Tropsch wax by separating wax into heavier and lighter fractions; further separating the lighter fraction and hydroisomerizing the heavier fraction and that portion of the light fraction below about 500° F. The isomerized product is blended with the untreated portion of the lighter fraction.Type: GrantFiled: November 17, 1997Date of Patent: November 23, 2004Assignee: ExxonMobil Reasearch and Engineering CompanyInventors: Paul J. Berlowitz, Robert J. Wittenbrink, Bruce R. Cook
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Patent number: 6808620Abstract: The present invention relates to new crystalline molecular sieve SSZ-64 prepared using a N-cyclobutylmethyl-N-ethylhexamethyleneiminium cation or N-cyclobutylmethyl-N-ethylheptamethyleneiminium cation structure directing agent, and processes employing SSZ-64 in a catalyst.Type: GrantFiled: August 1, 2002Date of Patent: October 26, 2004Assignee: Chevron U.S.A. Inc.Inventor: Saleh Elomari
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Publication number: 20040167355Abstract: A method of preparing high linear paraffin or high end-chain monomethyl content products is accomplished by converting synthesis gas in a Fischer-Tropsch reaction to hydrocarbon products. These may be hydrotreated to provide an n-paraffin content of greater than 50% by weight, with substantially all branched paraffins being monomethyl end-chain branched paraffins. At least one non-linear paraffin isomer, which may be a monomethyl paraffin isomer, may be separated from the hydrocarbon products through distillation to provide an n-paraffin product having an n-paraffin content percentage by weight of the n-paraffin product that is greater than the initial n-paraffin content.Type: ApplicationFiled: April 30, 2003Publication date: August 26, 2004Inventor: Armen N. Abazajian
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Publication number: 20040133055Abstract: A continuous or semi-continuous process for the production of triptane and/or triptene from methanol and/or dimethyl ether in the presence in a reactor of an effective concentration of catalyst active for the conversion of methanol and/or dimethyl ether to triptane and/or triptene in which process co-produced water is separated from the catalyst as a vapour phase whilst the catalyst is retained in a liquid or solid phase. Preferably, the catalyst comprises zinc halide and is maintained in said reactor in an active form and an effective concentration. Apparatus for use in the process may comprise a reactor having at least one reaction zone and at least one separation zone.Type: ApplicationFiled: February 11, 2004Publication date: July 8, 2004Inventors: Stephen David Cook, Jeremy Bernard Cooper, Peter John Elstner, Richard Daniel Kay, Alan Laughton, George Ernest Morris, Stephen James Smith, John Glen Sunley
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Publication number: 20040133057Abstract: The invention relates to methods and apparatus for mixing a plurality of gases. The preferred embodiments of the invention comprise forming bubbles of at least two gases injected separately into a liquid, and passing said bubbles through a gas-induced turbulent liquid region to enhance gas transfer between bubbles and to thereby mix the at least two gases. Creating the gas-induced turbulent liquid region preferably includes using a high gas superficial velocity, and may further include using powered mechanical devices, static internal structures, fluid recirculation, or combinations thereof. The gas mixture is preferably supplied to a reaction zone. In one embodiment a bubble tank mixer supplies a gas mixture comprising oxygen and a hydrocarbon gas to an oxidation reaction zone disposed above said mixer. In alternative embodiments the reaction zone and mixer may be integrated into the same vessel.Type: ApplicationFiled: December 10, 2003Publication date: July 8, 2004Applicant: ConocoPhillips CompanyInventors: Yi Jiang, Harold A. Wright, Doug S. Jack
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Patent number: 6695965Abstract: A wax blending process is disclosed which retains the desirable properties of a Fischer-Tropsch wax, while adjusting the hardness of the wax to within to a desired range. The invention utilizes a synergistic effect between hard virgin Fischer-Tropsch wax and softer mildly isomerized Fischer-Tropsch wax in a blending process which allows the artisan to adjust the hardness of a wax product to within desired ranges. The process involves passing a Fischer-Tropsch wax over a hydroisomerization catalyst under predetermined conditions including relatively mild temperatures such that chemical conversions (e.g., hydrogenation and mild isomerization) take place while less than 10% boiling point conversion (hydrocracking) occurs, thus preserving overall isomerized wax yield.Type: GrantFiled: April 4, 2000Date of Patent: February 24, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Robert J. Wittenbrink, Daniel Francis Ryan
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Publication number: 20030220531Abstract: Disclosed is a method of producing hydrocarbons from oxygenated hydrocarbon reactants, such as glycerol, glucose, or sorbitol. The method can take place in the vapor phase or in the condensed liquid phase (preferably in the condensed liquid phase). The method includes the steps of reacting water and a water-soluble oxygenated hydrocarbon having at least two carbon atoms, in the presence of a metal-containing catalyst. The catalyst contains a metal selected from the group consisting of Group VIIIB transitional metals, alloys thereof, and mixtures thereof. These metals are supported on supports that exhibit acidity or the reaction is conducted under liquid-phase conditions at acidic pHs. The disclosed method allows the production of hydrocarbon by the liquid-phase reaction of water with biomass-derived oxygenated compounds.Type: ApplicationFiled: May 9, 2003Publication date: November 27, 2003Inventors: Randy D. Cortright, James A. Dumesic
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Patent number: 6649044Abstract: The present invention relates to a process for the reductive dehalogenation of halogenated hydrocarbons. It comprises reacting halogenated hydrocarbons with a reducing metal and a hydrogen donating compound in the presence of an amine. Preferably, the halogenated hydrocarbons are reacted with lithium, potassium, calcium, sodium, magnesium, aluminum, zinc or iron. Depending on the metal, the complete reductive dehalogenation takes place at temperatures ranging from room temperature to 400° C.Type: GrantFiled: February 1, 2000Date of Patent: November 18, 2003Assignee: DCR International Environmental Services B.V.Inventors: Friedrich Bölsing, Achim Habekost
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Patent number: 6645370Abstract: This invention relates to a process for producing zeolite-bound high silica zeolites and the use of the zeolite-bound high silica zeolite produced by the process for hydrocarbon conversion. The process is carried out by forming an extrudable paste comprising a mixture of high silica zeolite in the hydrogen form, water, silica, and optionally an extrusion aid, extruding the extrudable paste to form silica-bound high silica zeolite extrudates, and then converting the silica of the binder to a zeolite binder. The zeolite-bound high silica zeolite produced by the process comprises high silica zeolite crystals that are bound together by zeolite binder crystals. The zeolite-bound high silica zeolite finds particular application in hydrocarbon conversion processes, e.g., catalytic cracking, alkylation, disproportionation of toluene, isomerization, and transalkylation reactions.Type: GrantFiled: December 10, 2002Date of Patent: November 11, 2003Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Johannes P. Verduijn, Gary David Mohr
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Patent number: 6616830Abstract: The present invention relates to a new crystalline zeolite SSZ-57 and processes employing SSZ-57 in a catalyst.Type: GrantFiled: July 13, 2001Date of Patent: September 9, 2003Assignee: Chevron U.S.A. Inc.Inventor: Saleh Elomari
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Publication number: 20030127360Abstract: This invention relates to a process for producing zeolite-bound high silica zeolites and the use of the zeolite-bound high silica zeolite produced by the process for hydrocarbon conversion. The process is carried out by forming an extrudable paste comprising a mixture of high silica zeolite in the hydrogen form, water, silica, and optionally an extrusion aid, extruding the extrudable paste to form silica-bound high silica zeolite extrudates, and then converting the silica of the binder to a zeolite binder. The zeolite-bound high silica zeolite produced by the process comprises high silica zeolite crystals that are bound together by zeolite binder crystals. The zeolite-bound high silica zeolite finds particular application in hydrocarbon conversion processes, e.g., catalytic cracking, alkylation, disproportionation of toluene, isomerization, and transalkylation reactions.Type: ApplicationFiled: December 10, 2002Publication date: July 10, 2003Inventors: Jannetje Maatje van den Berge, Gary David Mohr
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Publication number: 20030120125Abstract: This invention is an improved process for the selective oxidation of lower alkane starting materials (such as methane) into esters and, optionally, into various derivatives (such as methanol) in oxidizing acidic media using a stable platinum group metal ligand catalyst complex at elevated temperatures and to a class of novel platinum group metal ligand complexes employed bidiazine ligands, which are sufficiently stable in the oxidizing acidic media at elevated temperatures to be effective catalysts in the alkane conversion reaction.Type: ApplicationFiled: October 11, 2002Publication date: June 26, 2003Inventors: Roy A. Periana, Douglas J. Taube, Scott Gamble, Henry Taube
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Patent number: 6555725Abstract: A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a hydrocarbon synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more downcomer reactors immersed in the slurry body in the synthesis reactor. A monolithic catalyst is preferably used for the hydroisomerization, and slurry circulation down through the downcomer reactors from the surrounding slurry body, is achieved at least in part by density-difference driven hydraulics created by removing gas bubbles from the slurry passed into the downcomers. Preferably, catalyst particles are also removed before the slurry contacts the catalyst. Hydroisomerization occurs while the synthesis reactor is producing hydrocarbons, without interfering with the hydrocarbon synthesis reaction.Type: GrantFiled: November 6, 2001Date of Patent: April 29, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Robert Jay Wittenbrink, Charles John Mart, Janet Renee Clark, Jennifer Schaefer Feeley
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Patent number: 6547958Abstract: The present invention relates to new crystalline zeolite SSZ-59 and processes employing SSZ-59 as a catalyst.Type: GrantFiled: July 13, 2001Date of Patent: April 15, 2003Assignee: Chevron U.S.A. Inc.Inventor: Saleh Elomari
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Patent number: 6540905Abstract: The present invention relates to new crystalline zeolite SSZ-58 and processes employing SSZ-58 as a catalyst.Type: GrantFiled: July 13, 2001Date of Patent: April 1, 2003Assignee: Chevron U.S.A. Inc.Inventor: Saleh Elomari
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Patent number: 6540906Abstract: The present invention relates to new crystalline zeolite SSZ-60 and processes employing SSZ-60 as a catalyst.Type: GrantFiled: July 13, 2001Date of Patent: April 1, 2003Assignee: Chevron U.S.A. Inc.Inventor: Saleh Elomari
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Publication number: 20020179488Abstract: The invention provides a process for the production of a synthetic naphtha fuel suitable for use in compression ignition (CI) engines, the process including at least the steps of hydrotreating at least a fraction of a Fischer-Tropsch (FT) synthesis reaction product of CO and H2, or a derivative thereof, hydrocracking at least a fraction of the FT synthesis product or a derivative thereof, and fractionating the process products to obtain a desired synthetic naphtha fuel characteristic. The invention also provides a synthetic naphtha fuel made by the process as well as a fuel composition and a Cloud Point depressant for a diesel containg fuel composition, said fuel composition and said depressant including the synthetic naphtha of the invention.Type: ApplicationFiled: October 5, 2001Publication date: December 5, 2002Inventor: Luis Pablo Dancuart
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Patent number: 6462206Abstract: Ketones and aldehydes are hydrogenated to the corresponding alcohol or alkyl group, using H2 gas as the stoichiometric reductant, and organometallic ruthenium complexes as the catalysts.Type: GrantFiled: June 20, 2001Date of Patent: October 8, 2002Assignees: E. I. du Pont de Nemours and Company, Brookhaven Science AssociatesInventors: R. Morris Bullock, Marcel Schlaf, Elisabeth M. Hauptman
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Publication number: 20020136687Abstract: Molecular sieves comprising (1) phosphorus oxide; (2) a first oxide comprising an oxide of silicon, germanium or mixtures thereof; and (3) a second oxide comprising an oxide of aluminum, boron or mixtures thereof, said molecular sieve having a mole ratio of the first oxide to the second oxide of greater than 1, containing at least about 10 weight percent phosphorus oxide in the crystal framework, and having pores greater than 5 Å in diameter are useful as catalysts in hydrocarbon conversion reactions.Type: ApplicationFiled: February 28, 2002Publication date: September 26, 2002Inventor: Stephen J. Miller
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Publication number: 20020104780Abstract: The present invention relates to a new crystalline zeolite SSZ-53 prepared by using phenylcycloalkylmethyl ammonium cations as structure directing agents.Type: ApplicationFiled: April 17, 2001Publication date: August 8, 2002Inventor: Saleh Elomari
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Publication number: 20020103407Abstract: A method and apparatus for producing substitute natural gas are disclosed as including a plasma reactor (PR) which has arc discharge electrodes and a large number of minute arc passages (35) formed in solid carbon materials filled in the plasma reactor. Feed water is converted into steam in steam generating zone (34A) of the plasma reactor and the steam is fed through the minute arc passages in which steam reacts the solid carbon materials in the presence of arc plasmas to produce synthesis gas. The synthesis gas is supplied to a methanation reactor (MR) which converts the synthesis gas into substitute natural gas. The arc discharge electrodes may be supplied with controlled electric power such that a H2/CO ratio is maintained at a fixed value. The substitute natural gas may be cooled to separate condensed water, which is recycled to the plasma reactor for production of the steam therein.Type: ApplicationFiled: January 28, 2002Publication date: August 1, 2002Inventor: Takefumi Hatanaka
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Patent number: 6410814Abstract: A process for synthesis of lower isoparaffins from synthesis gas that is a mixture of hydrogen and carbon monoxide, wherein straight chain hydrocarbons are synthesized while isoparaffins and isoolefins are also produced through decomposition of hydrocarbons having a higher carbon number by use of a solid acid catalyst in the first stage, and isoparaffins are synthesized in the second stage. The straight chain hydrocarbons are produced by contacting the synthesis gas with a Fischer-Tropsch synthesis catalyst that is mixed with a solid acid catalyst for mainly hydrocracking long chain hydrocarbons. The isoparaffins are produced by contacting the straight chain hydrocarbons synthesized in the first stage, with a mixture of a hydrogenation catalyst for hydrogenating olefins and a solid acid catalyst for hydrocracking and isomerizing the straight chain hydrocarbons.Type: GrantFiled: April 3, 2001Date of Patent: June 25, 2002Assignees: Toyota Jidosha Kabushiki Kaisha, Genesis Research Institute, Inc.Inventors: Kaoru Fujimoto, Noritatsu Tsubaki
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Patent number: 6379531Abstract: The present invention relates to new crystalline zeolite SSZ-52 prepared using a quaternary ammonium cation templating agent having the structure where X— is an anion which is not detrimental to the formation of the SSZ-52. SSZ-52 is useful in catalysts for hydrocarbon conversion reactions.Type: GrantFiled: February 21, 2001Date of Patent: April 30, 2002Assignee: Chevron U.S.A. Inc.Inventors: Gregory S. Lee, Stacey I. Zones
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Publication number: 20010027259Abstract: A process for synthesis of lower isoparaffins from synthesis gas that is a mixture of hydrogen and carbon monoxide, wherein straight chain hydrocarbons are synthesized while isoparaffins and isoolefins are also produced through decomposition of hydrocarbons having a higher carbon number by use of a solid acid catalyst in the first stage, and isoparaffins are synthesized in the second stage. The straight chain hydrocarbons are produced by contacting the synthesis gas with a Fischer-Tropsch synthesis catalyst that is mixed with a solid acid catalyst for mainly hydrocracking long chain hydrocarbons. The isoparaffins are produced by contacting the straight chain hydrocarbons synthesized in the first stage, with a mixture of a hydrogenation catalyst for hydrogenating olefins and a solid acid catalyst for hydrocracking and isomerizing the straight chain hydrocarbons.Type: ApplicationFiled: April 3, 2001Publication date: October 4, 2001Inventors: Kaoru Fujimoto, Noritatsu Tsubaki
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Patent number: 6284807Abstract: A slurry catalytic hydrocarbon synthesis process which employs a catalyst comprising a supported cobalt component achieves a short term catalyst half life of more than 10 days, by using a syngas feed which contains less than fifty parts per billion of a combined total amount of HCN and NH3.Type: GrantFiled: August 14, 1998Date of Patent: September 4, 2001Assignee: Exxon Research and Engineering CompanyInventors: Stephen C. Leviness, Charles J. Mart, William C. Behrmann, Stephen J. Hsia, Daniel R. Neskora
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Patent number: 6271432Abstract: Cobalt catalysts, and processes employing these inventive catalysts, for hydrocarbon synthesis. The inventive catalyst comprises cobalt on an alumina support and is not promoted with any noble or near noble metals. In one aspect of the invention, the alumina support preferably includes a dopant in an amount effective for increasing the activity of the inventive catalyst. The dopant is preferably a titanium dopant. In another aspect of the invention, the cobalt catalyst is preferably reduced in the presence of hydrogen at a water vapor partial pressure effective to increase the activity of the cobalt catalyst for hydrocarbon synthesis. The water vapor partial pressure is preferably in the range of from 0 to about 0.1 atmospheres.Type: GrantFiled: December 20, 2000Date of Patent: August 7, 2001Assignee: Energy InternationalInventors: Alan H. Singleton, Rachid Oukaci, James G. Goodwin
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Publication number: 20010003787Abstract: Cobalt catalysts, and processes employing these inventive catalysts, for hydrocarbon synthesis. The inventive catalyst comprises cobalt on an alumina support and is not promoted with any noble or near noble metals. In one aspect of the invention, the alumina support preferably includes a dopant in an amount effective for increasing the activity of the inventive catalyst. The dopant is preferably a titanium dopant. In another aspect of the invention, the cobalt catalyst is preferably reduced in the presence of hydrogen at a water vapor partial pressure effective to increase the activity of the cobalt catalyst for hydrocarbon synthesis. The water vapor partial pressure is preferably in the range of from 0 to about 0.1 atmospheres.Type: ApplicationFiled: December 20, 2000Publication date: June 14, 2001Applicant: Energy International CorporationInventors: Alan H. Singleton, Rachid Oukaci, James G. Goodwin
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Patent number: 6218591Abstract: The present invention relates to new crystalline zeolite SSZ-36 prepared using a cyclic or polycyclic quaternary ammonium cation templating agent.Type: GrantFiled: June 11, 1999Date of Patent: April 17, 2001Assignee: Chevron U.S.A. Inc.Inventors: Gregory S. Lee, Stacey I. Zones, Yumi Nakagawa, Susan T. Evans