Patents Examined by Bradley Etherton
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Patent number: 8716542Abstract: In a process for oligomerizing an olefinic hydrocarbon feedstock comprising at least 65 wt % olefins and/or sulfur-containing molecules, the feedstock is contacted under oligomerization conditions with (a) a first unidimensional 10-ring molecular sieve catalyst and (b) a second multidimensional crystalline molecular sieve catalyst. The first and second catalysts may be contained in separate reactors or as separate beds in a single reactor.Type: GrantFiled: September 2, 2010Date of Patent: May 6, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stephen Harold Brown, John Stephen Godsmark, Georges Marie Karel Mathys
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Patent number: 8710286Abstract: A process for the coupling of hydrocarbons and utilizing the heat energy produced by the reaction is disclosed. In one embodiment the process can include reacting methane with oxygen to form a product stream containing ethane and further processing the ethane to ethylene in an existing ethylene production facility while using the heat energy produced by the reaction within the facility.Type: GrantFiled: March 31, 2009Date of Patent: April 29, 2014Assignee: Fina Technology, Inc.Inventor: James R. Butler
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Patent number: 8709824Abstract: The present invention concerns a contamination barrier 5 that permits an efficient and reproducible processing of a high number of samples with the prevention of contamination of aqueous solutions 3 in open and/or automated systems, especially in the ppm range, in that it comprises at least one water immiscible hydrocarbon compound. In addition a method for the prevention of contamination during the processing of aqueous solutions 3 in open and/or automated systems is disclosed.Type: GrantFiled: January 24, 2005Date of Patent: April 29, 2014Assignee: Qiagen GmbHInventors: Thomas Rothmann, Markus Sprenger-Haussels, Petra Benkel, Sabine Hermes, Friederike Wilmer
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Patent number: 8704029Abstract: Processes for the conversion, under conditions and with a catalyst system effective for olefin metathesis, of hydrocarbon feedstocks comprising butylene, for example all or a large proportion of a single C4 olefin isomer such as butene-1, are described. Olefin products, and particularly propylene, are formed in the presence of a catalyst comprising a solid support and a tungsten hydride bonded to alumina present in the support. This occurs despite the expectation that the olefin metathesis reaction mechanism leads to the formation of olefin products having other carbon numbers.Type: GrantFiled: March 30, 2010Date of Patent: April 22, 2014Assignee: UOP LLCInventors: Christopher P. Nicholas, Etienne Mazoyer, Mostafa Taoufik, Jean-Marie Basset, Paul T. Barger, James E. Rekoske
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Patent number: 8704022Abstract: Embodiments of the present invention are directed generally to methods for producing high purity exo-alkenylnorbornenes from a mixture of conformational isomers thereof.Type: GrantFiled: August 6, 2008Date of Patent: April 22, 2014Assignee: Promerus, LLCInventors: Andrew Bell, Dane Jablonski, Elaine Koronich, Brian Knapp, Dino Amoroso
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Patent number: 8704028Abstract: Processes for the conversion, under conditions and with a catalyst system effective for olefin metathesis, of hydrocarbon feedstocks comprising an acyclic symmetrical olefin (e.g., butene-2) are described. Olefin products of lower and higher carbon numbers (e.g., propylene and pentene) are formed in the presence of a catalyst comprising a solid support and a tungsten hydride bonded to alumina present in the support. This occurs despite the olefin metathesis reaction mechanism leading to a degenerative result, without any expected production of different carbon number products from acyclic symmetrical olefins.Type: GrantFiled: March 30, 2010Date of Patent: April 22, 2014Assignee: UOP LLCInventors: Christopher P. Nicholas, Etienne Mazoyer, Mostafa Taoufik, Jean-Marie Basset, Paul T. Barger
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Patent number: 8697925Abstract: A process for making diesel and turbine fuels including, providing an effective amount of branched olefins, adding active heterogeneous acid catalyst(s) to said branched olefins to produce a solvent-free mixture, heating said solvent-free mixture greater than about 100° C. for a desired amount of time depending on various conditions, to produce C16 dimers/catalyst mixture, removing said catalysts from said dimers/catalyst mixture, and adding hydrogenation catalyst(s) to said dimers under hydrogen atmosphere to produce a mixture of stable fuels.Type: GrantFiled: April 29, 2010Date of Patent: April 15, 2014Assignee: The United States of America as Represented by the Secretary of the NavyInventors: Benjamin G. Harvey, Roxanne L. Quintana, Michael E. Wright
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Patent number: 8691713Abstract: Treatment at elevated temperature and advantageously superatmospheric pressure with an inert gas, especially nitrogen, rejuvenates molecular sieve catalysts deactivated by use in liquid-phase or supercritical or dense-phase olefin oligomerization, or by use in aromatic alkylation.Type: GrantFiled: May 26, 2006Date of Patent: April 8, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jihad M. Dakka, Hans K. T. Goris, Stephen H. Brown
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Patent number: 8684384Abstract: A process for cracking a hydrocarbon feedstream containing non-volatile components in a hydrocarbon cracking furnace having upper and lower convection heating sections within a flue of the furnace, a radiant heating section downstream of and connected to said lower convection heating section, a transfer line exchanger downstream of and connected to said radiant heating section, a furnace box containing furnace burners and said radiant heating section, and a vapor/liquid separator vessel connected between the upper and lower convection heating sections, the process comprising (a) passing said hydrocarbon feedstream into said upper convection section to heat said hydrocarbon feedstream to a first temperature sufficient to flash at least a portion of the hydrocarbons within said hydrocarbon feedstream into a vapor phase to form a vapor/liquid stream; (b) passing said vapor/liquid stream out of said upper convection section and into said vapor/liquid separator to separate said vapor/liquid stream into a hydrocarbType: GrantFiled: May 7, 2009Date of Patent: April 1, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: David B. Spicer, Caleb M. Scherer, James M. Frye, Subramanian Annamalai
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Patent number: 8680350Abstract: Unsaturated hydrocarbons are hydrogenated over catalysts which comprise copper and zinc and whose active composition, in unreduced form, consists essentially of from 10 to 95% by weight of copper oxide, calculated as copper(II) oxide (CuO), from 5 to 90% by weight of zinc oxide (ZnO), optionally from 0.1 to 50% by weight of zirconium dioxide (ZrO2) and optionally from 0.1% by weight to 50% by weight of Al2O3, the proportions by weight adding up to 100% by weight.Type: GrantFiled: July 5, 2007Date of Patent: March 25, 2014Assignee: BASF SEInventors: Stephan Hatscher, Michael Hesse
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Patent number: 8680356Abstract: The present invention relates to a process for preparing a catalyst which, in a formal sense, comprises 0.1 to 20% by mass of alkali metal and/or alkaline earth metal oxide, 0.1 to 99% by mass of oxide and 0.1 to 99% by mass of silicon dioxide, which is characterized in that it aluminum comprises the steps of treating an aluminosilicate with an aqueous alkali metal and/or alkaline earth metal salt solution under acidic conditions and calcining the aluminosilicate treated with aqueous alkali metal and/or alkaline earth metal salt solution, and to a catalyst which is obtainable by this process and, in a formal sense, comprises alkali metal and/or alkaline earth metal oxide, aluminum oxide and silicon dioxide, which is characterized in that the catalyst, in a formal sense, has a content of alkali metal and/or alkaline earth metal oxides of 0.Type: GrantFiled: February 25, 2011Date of Patent: March 25, 2014Assignee: Evonik Oxeno GmbHInventors: Horst-Werner Zanthoff, Dietrich Maschmeyer, Thomas Quandt, Franz Nierlich, Silvia Santiago Fernandez, Stephan Houbrechts, Georg Skillas, Kurt-Alfred Gaudschun
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Patent number: 8674157Abstract: A process for converting a hydrocarbon feedstock to provide an effluent containing light olefins, the process comprising passing a hydrocarbon feedstock comprising a mixture of a first portion, containing one or more olfeins of C4 or greater, and a second portion, containing at least one C1 to C6 aliphatic hetero compound selected from alcohols, ethers, carbonyl compounds and mixtures thereof, through a reactor containing a crystalline silicate catalyst to produce an effluent including propylene, the crystalline silicate being selected from at least one of an MFI-type crystalline silicate having a silicon/aluminum atomic ratio of at least 180 and an MEL-type crystalline silicate having a silicon/aluminum atomic ratio of from 150 to 800 which has been subjected to a steaming step.Type: GrantFiled: August 12, 2004Date of Patent: March 18, 2014Assignee: Total Research & Technology FeluyInventors: Jean-Pierre Dath, Walter Vermeiren
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Patent number: 8674156Abstract: A method of producing a mixed manganese ferrite catalyst, and a method of preparing 1,3-butadiene using the mixed manganese ferrite catalyst. Specifically, a method of producing a mixed manganese ferrite catalyst through a coprecipitation method which is performed at a temperature of 10˜40° C., and a method of preparing 1,3-butadiene using the mixed manganese ferrite catalyst through an oxidative dehydrogenation reaction, in which a C4 mixture containing n-butene, n-butane and other impurities is directly used as reactants without performing additional n-butane separation process or n-butene extraction. 1,3-butadiene can be prepared directly using a C4 mixture including n-butane at a high concentration as a reactant through an oxidative hydrogenation reaction without performing an additional n-butane separation process, and 1,3-butadiene, having high activity, can be also obtained in high yield for a long period of time.Type: GrantFiled: November 7, 2008Date of Patent: March 18, 2014Assignees: SK Innovation Co., Ltd., SK Global Chemical Co. Ltd.Inventors: Young Min Chung, Yong Tak Kwon, Tae Jin Kim, Seong Jun Lee, Min Su Ko, Seung Hoon Oh, Yong Seung Kim, In Kyu Song
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Patent number: 8669407Abstract: Described is an apparatus for, and a method of, recovering linear butenes from a mixed feed comprising providing a first mixed feed comprising linear butenes and isobutene; contacting the first mixed feed with an oligomerization catalyst such as an MWW family zeolite in a first oligomerization reactor to produce a second mixed feed comprising the linear butenes, C8 olefins and higher oligomers, and a reduced amount of isobutene relative to the first mixed feed; and separating the second mixed feed to produce a first effluent of first purified linear butenes, and a second effluent of C8 olefins and higher oligomers. The oligomerization reactor may be a converted isobutene-to-methyl-t-butylether reactor.Type: GrantFiled: August 28, 2008Date of Patent: March 11, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Katherine Sullivan Phillion, Garland B. Brignac, Michael C. Clark, Glenn J. Moloney, Donald J. Norris, Benjamin S. Umansky
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Patent number: 8664460Abstract: The application discloses novel processes for the oligomerization of unsaturated hydrocarbons, and more specifically the use of selected ionic liquids containing Indium (III) Chloride in the oligomerization of unsaturated hydrocarbons, which allows for selection of the oligomers formed.Type: GrantFiled: December 12, 2006Date of Patent: March 4, 2014Assignee: The Queen's University of BelfastInventors: Martyn John Earle, Johanna Kärkkäinen, Natalia V. Plechkova, Alina Tomaszowska, Kenneth Richard Seddon
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Patent number: 8653317Abstract: A supported catalyst and process for dehydrogenating a hydrocarbon, the catalyst comprising a first component selected from the group consisting of tin, germanium, lead, indium, gallium, thallium, and compounds thereof; a second component selected from the group consisting of metals of Group 8 of the Periodic Table of the Elements and compounds thereof, and a support comprising alumina in the gamma crystalline form. The catalysts are especially active and efficient when employed in concurrent flow in a dehydrogenation reactor having an average contact time between the hydrocarbon and catalyst of from 0.5 to 10 seconds.Type: GrantFiled: March 4, 2010Date of Patent: February 18, 2014Inventors: Richard A. Pierce, Lin Luo, Michael M. Olken, Susan Domke, Howard W. Clark
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Patent number: 8653316Abstract: The present invention relates to a process for the preparation of linear low molecular weight alpha-olefins having 4 to 24 carbon atoms, comprising oligomerizing ethylene in an inert solvent in the presence of a catalyst system comprising: (i) zirconium carboxylate of the formula (R1COO)mZrCl4-m, wherein R1 is saturated or unsaturated aliphatic C1-C10 hydrocarbon or aromatic C6-C14 hydrocarbon and m fulfills 1?m?4, (ii) at least one aluminum compound selected from organoaluminum compounds of the formula R2nAlX3-n, wherein R2 is C1-C20 alkyl, X is chlorine, bromine or iodine, and n fulfills 1?n?2, and/or aluminoxanes, and (iii) at least two different additives selected from the group consisting of hydrogen, esters, ketones, ethers, amines, anhydrides, phosphines and sulfur compounds; as well as to a catalyst used therein.Type: GrantFiled: August 10, 2006Date of Patent: February 18, 2014Assignee: Saudi Basic Industries CorporationInventors: Vugar O. Aliyev, Atieh Abu-Raqabah, Mohammad Zahoor
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Patent number: 8647999Abstract: A method for manufacturing a catalyst, which comprises regenerating a catalyst comprising a CHA zeolite as an active ingredient and having an ethylene conversion lowered through reaction of producing propylene by bringing into contact with ethylene in a vapor phase, by bringing the catalyst into contact with a gas which does not comprise oxygen and comprises hydrogen having a hydrogen partial pressure of 0.01 MPa or more as an absolute pressure thereof.Type: GrantFiled: February 10, 2012Date of Patent: February 11, 2014Assignee: Mitsubishi Chemical CorporationInventors: Mikio Hayashi, Masahiro Hara, Masashi Yamaguchi, Yumiko Yoshikawa, Takahiko Takewaki, Tohru Setoyama, Naoyuki Sakamoto
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Patent number: 8648227Abstract: The invention relates to a method for extracting styrene, having a polymerization quality, from pyrolysis benzol fractions containing styrene by means of extractive distillation. The pyrolysis benzol fraction is separated in a separating wall column in a C8-core fraction, a C7 fraction and a C9+-fraction, the obtained C8-core fraction is subjected to selective hydrogenation of the phenylacetylene C8H6 which it contains. Subsequently, the obtained C8-fraction undergoes extractive-distillative separation in a styrene fraction and a fraction which is low in styrene.Type: GrantFiled: May 24, 2006Date of Patent: February 11, 2014Assignee: Thyssenkrupp Uhde GmbHInventor: Helmut Gehrke
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Patent number: RE44822Abstract: A process for heterogeneously catalyzed partial dehydrogenation of a hydrocarbon, in which a reaction gas mixture input stream comprising the hydrocarbon to be dehydrogenated is conducted through a fixed catalyst bed disposed in a shaft and the reaction gas mixture input stream is obtained in the shaft by metering an input gas II comprising molecular oxygen upstream of the fixed catalyst bed into an input gas stream I which comprises molecular hydrogen and the hydrocarbon to be dehydrogenated and is flowing within the shaft toward the fixed catalyst bed.Type: GrantFiled: November 20, 2012Date of Patent: April 1, 2014Assignee: BASF SEInventors: Claus Hechler, Wilhelm Ruppel, Wolfgang Gerlinger, Wolfgang Schneider, Klaus Joachim Mueller-Engel