Hydrogenation With Gaseous Hydrogen To Purify Or Recover Patents (Class 518/726)
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Patent number: 12180072Abstract: A plant, such as a hydrocarbon plant, is provided, which has a syngas stage for syngas generation and a synthesis stage where the syngas is synthesized to produce syngas derived product, such as hydrocarbon product. The plant makes effective use of various streams; in particular CO2 and H2. The plant does not comprise an external feed of hydrocarbons. A method for producing a product stream, such as a hydrocarbon product stream is also provided.Type: GrantFiled: March 27, 2023Date of Patent: December 31, 2024Assignee: HALDOR TOPSØE A/SInventors: Sudip De Sarkar, Thomas Sandahl Christensen, Martin Østberg, Kim Aasberg-Petersen
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Patent number: 11446642Abstract: A hybrid catalyst including a metal oxide catalyst component comprising chromium, zinc, and at least one additional metal selected from the group consisting of iron and manganese, and a microporous catalyst component that is a molecular sieve having 8-MR pore openings. The at least one additional metal is present in an amount from 5.0 at % to 20.0 at %.Type: GrantFiled: June 20, 2019Date of Patent: September 20, 2022Assignee: Dow Global Technologies LLCInventors: Glenn Pollefeyt, Davy L. S. Nieskens, Vera P. Santos Castro, Alexey Kirilin, Adam Chojecki, David Yancey, Andrzej Malek
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Patent number: 11247959Abstract: Provided is a method for directly preparing dimethyl ether by synthesis gas, the method comprises: the synthesis gas is passed through a reaction zone carrying a catalyst, and reacted under the reaction conditions sufficient to convert at least a portion of the raw materials to obtain the reaction effluent comprising dimethyl ether; and the dimethyl ether is separated from the reaction effluent, wherein the catalyst is zinc aluminum spinel oxide. In the present invention, only one zinc aluminum spinel oxide catalyst is used, which can make the synthesis gas to highly selectively form dimethyl ether, the catalyst has good stability and can be regenerated. The method of the present invention realizes the production of dimethyl ether in one step by the synthesis gas, and reduces the large energy consumption problem caused by step-by-step production.Type: GrantFiled: August 1, 2018Date of Patent: February 15, 2022Assignee: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Youming Ni, Wenliang Zhu, Zhongmin Liu, Yong Liu, Hongchao Liu, Xiangang Ma, Shiping Liu
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Patent number: 11111193Abstract: The invention relates to a process for treatment of a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium, comprising contacting a gas stream comprising methane, an inert gas or oxygen or any combination of two or more of these with the catalyst, wherein said gas stream comprises 0 to 25 vol. % of an alkane containing 2 to 6 carbon atoms and/or alkene containing 2 to 6 carbon atoms.Type: GrantFiled: June 29, 2015Date of Patent: September 7, 2021Assignee: SHELL OIL COMPANYInventors: Ronald Jan Schoonebeek, Michael Johannes Franciscus Maria Verhaak
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Patent number: 10435318Abstract: The Fischer-Tropsch (FT) process creates significant amounts of water. This FT produced water contains significant amounts of organic impurities. The invention provides methods of treating FT produced water. Surprisingly, it was discovered that the FT produced water could be successfully treated in a membrane bioreactor (MBR) according to relatively simple and more efficient steps; for example, by adjusting the pH of the water in the range of 4.2 to 5.8 or treating the FT produced water in a stripper where the distillate product stream and a reflux stream returning to the stripper have the same composition. In a related aspect, water compositions are described.Type: GrantFiled: September 15, 2015Date of Patent: October 8, 2019Assignee: Velocys Technologies, Ltd.Inventors: Graham Lea, Ivan Philip Greager, Laura J. Silva
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Patent number: 10335773Abstract: The present invention relates to a Fe-based hydrogenation catalyst having Fe as a primary active metal component, and zinc and potassium as a first co-active metal component. The molar ratio of the primary active metal component to the first co-active metal component is 0.5-200:1. The Fe-based hydrogenation catalyst in present invention overcomes the problem of limiting to the active metal components as used over decades for the conventional hydrogenation catalyst, and thus has long-term values for industrial application.Type: GrantFiled: July 18, 2014Date of Patent: July 2, 2019Assignee: CHINA UNIVERSITY OF PETROLEUM—BEIJINGInventors: Baojian Shen, Hao Li, Yandan Wang, Jiancong Li, Lei Li, Bojun Shen, Baohua Shen, Wennian Wang, Delin Yuan, Honglian Xu
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Patent number: 10260005Abstract: The present invention generally relates to improved catalysts that provide for reduced product contaminants, related methods and improved reaction products. It more specifically relates to improved direct fuel production and redox catalysts that provide for reduced levels of certain oxygenated contaminants, methods related to the use of those catalysts, and hydrocarbon fuel or fuel-related products that have improved characteristics. In one aspect, the present invention is directed to a method of converting one or more carbon-containing feedstocks into one or more hydrocarbon liquid fuels. The method includes the steps of: converting the one or more carbon-containing feedstocks into syngas; and, converting the syngas to one or more hydrocarbons (including liquid fuels) and a water fraction. The water fraction comprises less than 500 ppm of one or more carboxylic acids.Type: GrantFiled: August 5, 2016Date of Patent: April 16, 2019Assignee: Greyrock Technology LLCInventors: Robert Schuetzle, Dennis Schuetzle
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Patent number: 10252963Abstract: Synthesizing methanol from a synthesis gas and separating an unreacted gas from a reaction mixture obtained by passing through the synthesis step, the method including a synthesis loop having at least two synthesis steps and at least two separation steps; obtaining a first mixed gas by increasing through a circulator a pressure of a residual gas, obtained by removing a purge gas from the final unreacted gas separated from the final reaction mixture subsequent to the final synthesis step, and by mixing the residual gas with a fraction of a make-up gas; synthesizing methanol; separating a first unreacted gas from the first reaction mixture obtained in the synthesizing step; obtaining a second mixed gas by mixing the first unreacted gas and a fraction of the make-up gas; finally synthesizing methanol; and separating the final unreacted gas from the final reaction mixture obtained in the final synthesis step.Type: GrantFiled: October 20, 2015Date of Patent: April 9, 2019Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yasuaki Kambe, Kohei Uchida, Hiroshi Watanabe, Daigo Hirakawa, Tatsuya Hasegawa
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Patent number: 10029973Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.Type: GrantFiled: November 24, 2017Date of Patent: July 24, 2018Assignee: GROPO PETROTEMEX, S.A. DE C.V.Inventors: Alan George Wonders, Robert Lin, Lee Reynolds Partin, Marcel de Vreede, Wayne Scott Strasser
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Patent number: 9994763Abstract: The Fischer-Tropsch (FT) process can be controlled to create water that has desirable characteristics for use in secondary processes such as fracking or irrigation.Type: GrantFiled: June 12, 2016Date of Patent: June 12, 2018Assignee: Velocys, Inc.Inventors: Stephen Claude LeViness, Ivan Greager
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Patent number: 9981254Abstract: The present invention relates to a method for producing a zeolite catalyst useful for aromatization of a lower alkane, a zeolite catalyst useful for aromatization of a lower alkane obtainable by said method and a process for aromatization of a lower alkane using the zeolite catalyst of the present invention.Type: GrantFiled: January 12, 2016Date of Patent: May 29, 2018Assignee: SAUDI BASIC INDUSTRIES CORPORATIONInventor: Suman Kumar Jana
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Patent number: 9873836Abstract: The present invention provides methods, reactor systems, and catalysts for increasing the yield of aromatic hydrocarbons produced while converting biomass to hydrocarbons. The invention includes methods of using catalysts to increase the yield of benzene, toluene, and mixed xylenes in the hydrocarbon product.Type: GrantFiled: May 22, 2014Date of Patent: January 23, 2018Assignee: Virent, Inc.Inventors: Paul Blommel, Andrew Held, Ralph Goodwin, Randy Cortright
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Patent number: 9776924Abstract: A mullite sintered body according to the present invention has an impurity element content of 1% by mass or less and contains sintered mullite grains having an average grain size of 8 ?m or less. When a surface of the mullite sintered body is finished by polishing, pores in the surface have an average largest pore length of 0.4 ?m or less. The surface preferably has a center line average surface roughness (Ra) of 3 nm or less. The surface preferably has a maximum peak height (Rp) of 30 nm or less. The number of pores in the surface is preferably 10 or less per unit area of 4 ?m×4 ?m.Type: GrantFiled: March 9, 2016Date of Patent: October 3, 2017Assignee: NGK Insulators, Ltd.Inventors: Yoshinori Isoda, Yosuke Sato, Yuji Katsuda
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Patent number: 9504979Abstract: The present invention comprises an axial radial catalytic reactor with a shell (as gas tight seal to maintain process gas flows within it) and a feed tube (passing from a source of process gas flow through the shell and into it do deliver feed gas to one or more levels of two annularly sequential catalyst beds), where one end of the feed tube is used as an inlet for feeding reaction mass. In one embodiment of the invention, an interior end of the feed tube is sealed.Type: GrantFiled: May 26, 2015Date of Patent: November 29, 2016Inventors: Huaihai Zhang, Shiyu Zhao
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Patent number: 9504952Abstract: A method for recycling a carbon-containing greenhouse gas emissions such as carbon dioxide and methane (natural gas) or a hydrocarbon homolog thereof. The method includes the steps of capturing the emissions, sequestering them in an underground or undersea storage area, withdrawing them from the storage area after storage therein, and converting them to carbon-containing compounds such as methanol, dimethyl ether and derived products. Greenhouse gases such as carbon dioxide and methane are chemically recycled to provide a permanent and inexhaustible supply of carbon-containing fuels or products, which subsequently can be combusted or used without increasing the carbon dioxide content of the atmosphere. The method is thus effective in neutralizing or reducing the carbon footprint due to human activities related to combustion or use of carbon-containing fuels while providing a repeatedly sustainable carbon source.Type: GrantFiled: September 9, 2011Date of Patent: November 29, 2016Assignee: University of Southern CaliforniaInventors: George A. Olah, G. K. Surya Prakash
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Patent number: 9447336Abstract: Methods, systems and designs are provided for removing mercury from crudes. Crude oil is heated to a temperature above 100° C. in a stabilization column for a time sufficient to convert all of the forms of mercury in the oil into the elemental mercury form. The elemental mercury is then stripped from the crude oil by flashing, or preferably by gas stripping with a gas injected at the bottom of the column. Either process transfers the elemental mercury from the oil phase into the gas phase. Elemental mercury can then be removed from the gas phase by methods such as condensation, precipitation, or absorption either alone or in combination.Type: GrantFiled: August 14, 2014Date of Patent: September 20, 2016Assignee: ConocoPhillips CompanyInventors: Charles J. Lord, III, Thomas R. Smith, David O'Halloran
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Patent number: 9364808Abstract: The present disclosure relates to an apparatus for a reduction reaction of carbon dioxide using solar energy and a reducing method of carbon dioxide for reacting carbon dioxide gas and hydrogen gas with each other by using solar energy.Type: GrantFiled: April 24, 2014Date of Patent: June 14, 2016Assignee: Sogang University Research FoundationInventor: Kyung Byung Yoon
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Patent number: 9266100Abstract: The present invention relates to a method for producing a zeolite catalyst useful for aromatization of a lower alkane, a zeolite catalyst useful for aromatization of a lower alkane obtainable by said method and a process for aromatization of a lower alkane using the zeolite catalyst of the present invention.Type: GrantFiled: May 17, 2011Date of Patent: February 23, 2016Assignee: SAUDI BASIC INDUSTRIES CORPORATIONInventor: Suman Kumar Jana
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Patent number: 9162208Abstract: A system and process for producing synthetic crude oil from produced fluids of an oil well is disclosed. The system comprises a separation plant for producing an associated gas stream from produced fluids a membrane unit comprising a plurality of polymer membranes to provide a CO2 enriched permeate stream and a CO2 depleted product gas stream, a gas conversion plant for converting the CO2 depleted product gas stream into a synthetic crude oil and a heat exchanger adding heat to the associated gas stream so that the membrane unit operates at a temperature of at least 80° C. during separation of the associated gas stream using the membrane unit. A process using the aforementioned components, including separation of the associated gas stream using the membrane unit at a temperature >80° C., into a CO2 enriched stream and a CO2 depleted product stream, is also described.Type: GrantFiled: October 4, 2012Date of Patent: October 20, 2015Assignee: Chevron U.S.A. Inc.Inventors: Daniel Chinn, Gordon R. Deppe, Anne M. Helgeson, Shabbir Husain
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Patent number: 9132419Abstract: [Problem] The present invention provides a NOx purification catalyst which utilizes Ag as one of the catalyst components and exhibits NOx purification performance without adjustment to a special exhaust gas composition, as well as a method of producing the same. [Means for Solution] The present invention provides a nitrogen oxide purification catalyst in which particulates are supported on a metal oxide carrier, wherein the aforementioned particulates consist of Ag and Ni and the aforementioned Ag and Ni are at least partially alloyed. Also provided is a method of producing the aforementioned catalyst, comprising the step of preparing a colloidal suspension in which the ratio of Ag is 10 to 90 at % with respect to the total amount of Ag and Ni.Type: GrantFiled: July 7, 2011Date of Patent: September 15, 2015Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CAMBRIDGE ENTERPRISE LIMITEDInventors: Mayuko Osaki, Yoshiaki Inagaki, Atsushi Tanaka, Brian Johnson, Andrew Wheatley, Maciej Cabaj, Masaya Ibe
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Patent number: 9050588Abstract: A Fischer-Tropsch catalyst activation system including separation apparatus configured for separating a product gas comprising primarily hydrogen from a gas stream comprising hydrogen, an activation reactor fluidly connected with the separation apparatus via an activation gas inlet line whereby the product gas may be introduced into the activation reactor, and a circulation loop fluidly connecting a gas outlet of the activation reactor with the activation gas inlet line or with another gas inlet of the activation reactor and fluidly connecting the activation reactor with one or more apparatus configured for removal of H2O. A method of activating a Fischer-Tropsch catalyst is also provided.Type: GrantFiled: May 27, 2011Date of Patent: June 9, 2015Assignee: GI—GASIFICATION INTERNATIONAL, S.A.Inventor: Juan R. Inga
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Patent number: 8790614Abstract: ZnO structures comprising crystalline ZnO micro or nanorods and methods for making and using these ZnO structures are provided. The side surface of the central portion of each rod may comprise planes of the form {1 0 ?1 0}, {0 1 ?1 0}, {?1 1 0 0}, {?1 0 1 0}, {0 ?1 1 0} or {1 ?1 0 0}, with central edge regions including a crystallographic plane of the form {2 ?1 ?1 0} or {?2 1 1 0}. The tip of the rod may comprise planes of the form {1 0 ?1 1} {0 1 ?1 1}, {?1 1 0 1}, {?1 0 1 1}, {0 ?1 1 1} or {1 ?1 0 1} with tip edge regions including a crystallographic plane of the form {2 ?1 ?1 2} or {?2 1 1 2}. The rods may be joined at or near their bases to form a “flower-like” morphology. In an embodiment, a synthesis mixture is prepared by dissolving a zinc salt in an alcohol solvent, followed by addition of at least two additives. The zinc salt may be zinc nitrate hexahydrate, the first additive may be benzyl alcohol and the second additive may be urea.Type: GrantFiled: January 11, 2010Date of Patent: July 29, 2014Assignee: Colorado School of MinesInventors: Ryan M. Richards, Lifang Chen, Juncheng Hu
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Patent number: 8791166Abstract: The invention provides a method for producing methanol and its products exclusively from a geothermal source as the sole source material also using the needed energy from the geothermal energy source. The method includes separating or isolating carbon dioxide accompanying hot water or steam of the source, generating hydrogen from the water and subsequently preparing methanol from the carbon dioxide and hydrogen. The methanol can be further converted into dimethyl ether or other products.Type: GrantFiled: July 10, 2009Date of Patent: July 29, 2014Assignee: University of Southern CaliforniaInventors: George A. Olah, G. K. Surya Prakash
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Publication number: 20140163122Abstract: An integrated process for the generation of saturated C3 and higher hydrocarbons from carbon oxide(s) and hydrogen, includes the steps of: (a) feeding a gas feed stream including carbon oxide(s) and hydrogen to a two-stage reaction system comprising a first stage including a carbon oxide(s) conversion catalyst, where the feed stream is converted in the first stage to form an intermediate product stream, (b) feeding the intermediate product stream to a second stage including a dehydration/hydrogenation catalyst and (c) removing a product stream from the second stage, the product stream including saturated C3 and higher hydrocarbons. The two-stage reaction system could exhibit a high activity and selectivity to C3 and higher hydrocarbons, and the two stage reactions may be operated in different reaction conditions.Type: ApplicationFiled: April 19, 2012Publication date: June 12, 2014Applicants: BP P.L.C., DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Qingjie Ge, Xiangang Ma, Junguo Ma, Hengyong Xu
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Publication number: 20140142204Abstract: A process and system are described for producing a synthetic crude oil by contacting a synthesis gas with a combination of a synthesis gas conversion catalyst and a hydroconversion catalyst in a synthesis gas reactor. The synthesis gas can be obtained from gas associated with crude oil production, i.e., associated gas, in a synthesis gas generator. The synthetic crude oil can be blended with a natural crude oil to produce a blended stabilized crude oil having 2 wt % or more of the synthetic crude oil. The resulting blended stabilized crude oil has improved flow characteristics including a pour point of 30° C. or less.Type: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Applicant: Chevron U.S.A. Inc.Inventors: Charles Leonard Kibby, Dennis John O'Rear, Robert James Saxton, Tapan Kumar Das, Kandaswany Jothimurugesan, Allison Amy Evans, Michelle Hart
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Patent number: 8658554Abstract: A catalyst support which may be used to support various catalysts for use in reactions for hydrogenation of carbon dioxide including a catalyst support material and an active material capable of catalyzing a reverse water-gas shift (RWGS) reaction associated with the catalyst support material. A catalyst for hydrogenation of carbon dioxide may be supported on the catalyst support. A method for making a catalyst for use in hydrogenation of carbon dioxide including application of an active material capable of catalyzing a reverse water-gas shift (RWGS) reaction to a catalyst support material, the coated catalyst support material is optionally calcined, and a catalyst for the hydrogenation of carbon dioxide is deposited on the coated catalyst support material. A process for hydrogenation of carbon dioxide and for making syngas comprising a hydrocarbon, esp. methane, reforming step and a RWGS step which employs the catalyst composition of the present invention and products thereof.Type: GrantFiled: October 28, 2010Date of Patent: February 25, 2014Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Robert W. Dorner, Heather D. Willauer, Dennis R Hardy
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Patent number: 8574501Abstract: A method and apparatus for converting natural gas from a source, such as a wellhead, pipeline, or a storage facility, into hydrocarbon liquid stable at room temperature, comprising a skid or trailer mounted portable gas to liquids reactor. The reactor includes a preprocessor which desulfurizes and dehydrates the natural gas, a first stage reactor which transforms the preprocessed natural gas into synthesis gas, and a liquid production unit using a Fischer-Tropsch or similar polymerization process. The hydrocarbon liquid may be stored in a portable tank for later transportation or further processed on site.Type: GrantFiled: February 15, 2013Date of Patent: November 5, 2013Assignee: Greenway Innovative Energy, Inc.Inventor: F. Conrad Greer
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Patent number: 8367883Abstract: The present invention relates to a method of manufacturing naphtha, wherein, in hydrogenation of a naphtha fraction which is fractionated from synthetic oil (FT synthetic oil) obtained by Fisher-Tropsch synthesis, the hydrogenised component is recycled and the recycled amount thereof is adjusted to reduce a olefin content in a hydro-refining apparatus whereby heat generation is suppressed and unstable operation of the hydro-refining apparatus can be stabilized. Furthermore, the present invention relates to a method of manufacturing naphtha, wherein a cut point for fractionating a naphtha fraction from FT synthetic oil is adjusted to reduce the amount of olefin in a hydro-refining apparatus whereby unstable operation of the hydro-refining apparatus can be stabilized.Type: GrantFiled: September 25, 2008Date of Patent: February 5, 2013Assignees: Japan Oil, Gas and Metals National Corporation, Inpex Corporation, Nippon Oil Corporation, Japan Petroleum Exploration Co., Ltd., Cosmo Oil Co., Ltd., Nippon Steel Engineering Co., Ltd.Inventor: Yuichi Tanaka
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Publication number: 20120283341Abstract: A method and apparatus for synthesizing ethanol using synthetic routes via synthesis gas are disclosed. A method and apparatus for gasifying biomass, such as biomass, in a steam gasifier that employs a fluidized bed and heating using hot flue gases from the combustion of synthesis gas is described. Methods and apparatus for converting synthesis gas into ethanol are also disclosed, using stepwise catalytic reactions to convert the carbon monoxide and hydrogen into ethanol using catalysts including iridium acetate.Type: ApplicationFiled: December 1, 2011Publication date: November 8, 2012Applicant: WOODLAND BIOFUELS INC.Inventors: Larry Jack Melnichuk, Karen Venita Kelly, Robert S. Davis
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Patent number: 8231776Abstract: A method for obtaining a petroleum distillate product is provided, the method includes subjecting an untreated light Fischer-Tropsch liquid to a two-step hydrogenation process, each step to be carried in the presence of a catalyst comprising an amorphous substrate having a metallic composition embedded therein. After the first step of hydrogenation, an intermediate hydrotreated light Fischer-Tropsch liquid is obtained, followed by the second step of hydrogenation thereof, obtaining the petroleum distillate product as a result. An apparatus for carrying out the method is also provided.Type: GrantFiled: March 24, 2010Date of Patent: July 31, 2012Assignee: UOP LLCInventor: Peter Kokayeff
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Patent number: 8158842Abstract: A process for the recovery of organic chemical feedstocks from biooil is presented. The process comprises separating the water soluble chemicals from biomass and recovering the primarily oxygenate compounds for use as feedstocks.Type: GrantFiled: June 15, 2007Date of Patent: April 17, 2012Assignee: UOP LLCInventor: Michael J. McCall
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Patent number: 8022108Abstract: Novel methods of treating a Fischer-Tropsch product stream with an acid are disclosed. Such methods are capable of removing contamination from the Fischer-Tropsch product stream such that plugging of the catalyst beds of a subsequent hydroprocessing step is substantially reduced.Type: GrantFiled: July 2, 2003Date of Patent: September 20, 2011Assignee: Chevron U.S.A. Inc.Inventors: Lucy M. Bull, Donald L. Kuehne, William L. Schinski, Philippus Rudolf Heydenrich, Richard O. Moore, Jr., Quintin John Beukes, Gianni Guilio Eligio Bacco Rodriquez
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Patent number: 8017658Abstract: A method of: introducing hydrogen and a feed gas containing at least 50 vol % carbon dioxide into a reactor containing a Fischer-Tropsch catalyst; and heating the hydrogen and carbon dioxide to a temperature of at least about 190° C. to produce hydrocarbons in the reactor. An apparatus having: a reaction vessel for containing a Fischer-Tropsch catalyst, capable of heating gases to at least about 190° C.; a hydrogen delivery system feeding into the reaction vessel; a carbon dioxide delivery system for delivering a feed gas containing at least 50 vol % carbon dioxide feeding into the reaction vessel; and a trap for collecting hydrocarbons generated in the reaction vessel.Type: GrantFiled: September 5, 2007Date of Patent: September 13, 2011Assignee: The United States of America as represented by the Secretary of the NavyInventors: Nick E Tran, Dennis R Hardy, Samuel G Lambrakos, John G. Michopoulos
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Patent number: 7896935Abstract: A process of conducting a catalyst reaction or fluid separation in comprising: at least one process microchannel having a height, width and length, the height being up to about 10 mm, the process microchannel having a base wall extending in one direction along the width of the process microchannel and in another direction along the length of the process microchannel; at least one fin projecting into the process microchannel from the base wall and extending along at least part of the length of the process microchannel; and a catalyst or sorption medium supported by the fin.Type: GrantFiled: December 28, 2006Date of Patent: March 1, 2011Assignee: Velocys, Inc.Inventors: Anna Lee Tonkovich, Dongming Qiu, Richard Q. Long, Barry L. Yang, Thomas Yuschak, Steven T. Perry
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Patent number: 7883882Abstract: Disclosed herein are methods of manufacturing renewable chemicals through the manufacture of novel triglyceride oils followed by chemical modification of the oils. Methods such as transesterification, hydrogenation, hydrocracking, deoxygenation, isomerization, interesterification, hydroxylation, hydrolysis and saponification are disclosed. Novel oils containing fatty acid chain lengths of C8, C10, C12 or C14 are also disclosed and are useful as feedstocks in the methods of the invention.Type: GrantFiled: November 30, 2009Date of Patent: February 8, 2011Assignee: Solazyme, Inc.Inventors: Scott Franklin, Aravind Somanchi, Karen Espina, George Rudenko, Penelope Chua
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Patent number: 7879920Abstract: This invention is directed to methods for forming an olefin stream from a methanol stream. A lower grade methanol, such as chemical grade or crude methanol, can be used as feed to form the olefin stream. The process uses a relatively simple distillation type step to vaporize a portion of the methanol feed stream and send the resulting vapor stream to a reaction unit to form the olefin stream. In addition, the invention provides the ability to operate the downstream recovery units with reduced fouling or plugging due to the presence of fine solids components.Type: GrantFiled: April 1, 2005Date of Patent: February 1, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: James R. Lattner, Christopher Becker, Cor F. Van Egmond, Andrew M. Argo
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Patent number: 7875254Abstract: The invention relates to improvements in internal loop reactors. The reactor of the invention is characterized by a plurality of cooling tubes which form the annulus between the riser and the downcomer path of said internal loop reactor. The reactor also provides improvements in hydroformylation reactions using the improved reactor.Type: GrantFiled: January 5, 2010Date of Patent: January 25, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Ronald Dean Garton, Matthew Findlay, Krishnan Sankaranarayanan, Arie Van Vliet
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Publication number: 20100317751Abstract: The invention relates to a process for the extraction of hydrogen from a gas mixture comprising hydrogen and carbon monoxide and optionally nitrogen, carbon dioxide, lower hydrocarbons and/or water, by contacting the gas mixture with a non-porous polyimide-based membrane, especially with the selective side of an asymmetric membrane, to obtain a hydrogen rich permeate and a hydrogen lean retentate, the polyimide-based membrane being a specific mixture of two polyimides. This specific membrane shows a very high hydrogen/carbon monoxide selectivity. The invention is especially suitable for the upgrading of synthesis gas obtained by partial oxidation and/or reforming of hydrocarbonaceous feedstream for use in hydrocarbon synthesis reaction as the Fischer-Tropsch reaction.Type: ApplicationFiled: October 18, 2007Publication date: December 16, 2010Inventors: Paulus Theodorus Maria Van Brugge, Lisa Johanne Deprez, Arian Nijmeijer
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Patent number: 7829751Abstract: The present invention relates to processes for forming mixed alcohols containing methanol and ethanol. The mixed alcohol can then be used as a feedstock for an oxygenate to olefin reaction system for conversion thereof to ethylene, propylene, and the like. In addition, the olefins produced by the oxygenate to olefin reaction can then be used as monomers for a polymerization of olefin-containing polymers and/or oligomers.Type: GrantFiled: September 14, 2007Date of Patent: November 9, 2010Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Doron Levin, Richard B. Hall
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Patent number: 7812060Abstract: A method of treating off-gas from a Fischer-Tropsch reaction comprises recovering the off-gas and hydrogenating a portion of the olefins present in the off-gas and converting a portion of the carbon monoxide present in the off-gas to carbon dioxide or methane. The treated off-gas is then fed to a hydrogen manufacturing unit such as a steam reformer to form hydrogen that can be used elsewhere in the process.Type: GrantFiled: November 24, 2005Date of Patent: October 12, 2010Assignee: Shell Oil CompanyInventors: Frederik Willem Hendrik Gimpel, Gerard Grootveld
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Patent number: 7803845Abstract: Method and device for cleaning synthesis gas obtained during gasification of biomass are disclosed. The synthesis gas is passed through a saturation device and an absorption device, both of which are fed with oil. In this way, the synthesis gas is scrubbed with oil and tar is substantially removed therefrom. The tar-containing oil which is released in this process is subjected to a cleaning step, as a result of which oil with a high percentage of tar and oil with a relatively low percentage of tar are formed. The first oil can be retuned to the gasification, and the remaining oil can be reused.Type: GrantFiled: August 22, 2002Date of Patent: September 28, 2010Assignee: Stichting Energieonderzoek Centrum NederlandInventors: Harold Boerrigter, Peter Christiaan Albert Bergman
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Patent number: 7776208Abstract: This disclosure discusses integrating syngas streams with refinery hydrotreators, synthetic hydrocarbon gas to liquid (GTL) processes, and power generation units (such as combined cycle units) to efficiently use hydrogen contained in the syngas produced from heavy hydrocarbons (pet coke, residues, oil, etc.). Membrane separation and pressure swing adsorption is used to separate components of syngas and feed them to refineries, GTL units, and power/steam generation units. Hydrogen-rich refinery purge is used to raise the H2/CO ratio of syngas. A hydrogen-enriched syngas is produced with an H2/CO ratio favorable for the production on synthetic hydrocarbons (greater than about 1.5 to about 2.0 or higher). Pure hydrogen is also produced in a PSA unit, to further raise the H2/CO ratio of the syngas and provide hydrogen feed for refinery hydrotreators and synthetic hydrocarbon units (such as methanol units).Type: GrantFiled: October 1, 2004Date of Patent: August 17, 2010Assignee: L'Air Liquide - Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: C.J. Guo
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Patent number: 7745502Abstract: The invention relates to a process for producing a hydrogen-rich stream from a hydrogen-depleted stream. More particularly, the invention relates to a hydrocarbon synthesis process, by way of example, a Fischer Tropsch process, from which both hydrocarbons and high purity hydrogen are obtained. The process comprises contacting the hydrogen-depleted stream with a reverse-selective membrane to provide a CO2-enriched permeate and a hydrogen-containing retentate. The high purity hydrogen is produced from the hydrogen-containing retentate. The high purity hydrogen thus obtained may be used in a process selected from the group consisting of upgrading hydrocarbons produced from the hydrocarbon synthesis process, hydrotreating a natural gas stream, recycling to the hydrocarbon synthesis reaction unit, high purity hydrogen production, catalyst rejuvenation, and combinations thereof.Type: GrantFiled: December 13, 2006Date of Patent: June 29, 2010Assignee: Chevron U.S.A. Inc.Inventors: Clifford M. Lowe, Daniel Chinn
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Patent number: 7737311Abstract: Use of a Fischer-Tropsch derived fuel in a fuel composition is disclosed, for the purpose of reducing catalyst degradation in a catalytically driven or catalyst containing system which is running on, or is to be run on, the composition or its products, wherein the Fischer-Tropsch derived fuel is used to reduce the level of silicon in the fuel composition, such as by reducing the concentration of silicon-containing antifoaming additive(s) in the fuel composition. It may also be used to reduce loss of efficiency of fuel atomization and/or combustion, and/or to reduce build up of silicon deposits, in a fuel consuming system which is running on, or is to be run on, the fuel composition.Type: GrantFiled: September 3, 2004Date of Patent: June 15, 2010Assignee: Shell Oil CompanyInventors: Roger Francis Cracknell, Trevor Stephenson
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Patent number: 7666366Abstract: The invention relates to improvements in internal loop reactors. The reactor of the invention is characterized by a plurality of cooling tubes which form the annulus between the riser and the downcomer path of said internal loop reactor. The reactor also provides improvements in hydroformylation reactions using the improved reactor.Type: GrantFiled: July 10, 2006Date of Patent: February 23, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Ronald Dean Garton, Matthew Findlay, Krishnan Sankaranarayanan, Arie Van Vliet
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Publication number: 20100022671Abstract: The invention provides a method for producing methanol and its products exclusively from a geothermal source as the sole source material also using the needed energy from the geothermal energy source. The method includes separating or isolating carbon dioxide accompanying hot water or steam of the source, generating hydrogen from the water and subsequently preparing methanol from the carbon dioxide and hydrogen. The methanol can be further converted into dimethyl ether or other products.Type: ApplicationFiled: July 10, 2009Publication date: January 28, 2010Inventors: George A. Olah, G.K. Surya Prakash
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Publication number: 20090326080Abstract: A process for converting methanol to ethanol which comprises reacting methanol and carbon monoxide in the presence of a catalyst to produce a product comprising at least 25 mole % methyl acetate and, in some instances, acetic acid. The acetic acid then is reacted with at least one alcohol to produce at least one acetate selected from methyl acetate, ethyl acetate, and butyl acetate. The at least one acetate (if produced) and the methyl acetate produced as a result of reacting methanol and carbon monoxide then are hydrogenated to produce ethanol. Syngas may be produced from biomass to produce all or a portion of the methanol, hydrogen, and carbon monoxide requirements for the process.Type: ApplicationFiled: February 20, 2009Publication date: December 31, 2009Inventors: Esteban Chornet, Boris Valsecchi, Yasmin Avila, Betty Nguyen, Jean-Michel Lavoie
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Patent number: 7638038Abstract: A method for controlling the pseudo-isothermicity of a chemical reaction in a respective reaction zone. (9) in which the use of heat exchangers (6) is foreseen having an operating heat exchange fluid flowing through them and in which heat exchange critical areas (9a) are identified, the method being distinguished by the fact that it reduces and controls, in the critical areas (9a) of the reaction zone, the value of the heat exchange coefficient between the operating fluid and the zone (9), through thermal insulation of the portions (6a, 6b) of such exchangers extending in such areas (9a).Type: GrantFiled: October 2, 2002Date of Patent: December 29, 2009Assignee: Methanol Casale S.A.Inventors: Ermanno Filippi, Enrico Rizzi, Mirco Tarozzo
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Patent number: 7608743Abstract: An efficient and environmentally beneficial method of recycling and producing methanol from varied sources of carbon dioxide including flue gases of fossil fuel burning powerplants, industrial exhaust gases or the atmosphere itself. Converting carbon dioxide by chemical or electrochemical reduction secondary treatment to produce essentially methanol, dimethyl ether and derived products.Type: GrantFiled: June 21, 2007Date of Patent: October 27, 2009Assignee: University of Southern CaliforniaInventors: George A. Olah, G. K. Surya Prakash
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Patent number: 7605293Abstract: An environmentally beneficial method of producing methanol from varied sources of carbon dioxide including flue gases of fossil fuel burning powerplants, industrial exhaust gases or the atmosphere itself. Converting carbon dioxide by electrochemical reduction produces formic acid acid and some formaldehyde and methanol mixtures. The formic acid can be used as source of carbon as well as hydrogen to produce methanol, dimethyl ether and other products.Type: GrantFiled: April 12, 2006Date of Patent: October 20, 2009Assignee: University of Southern CaliforniaInventors: George A. Olah, G. K. Surya Prakash