Zeolite Patents (Class 502/64)
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Patent number: 7442365Abstract: A process for preparing beads of various compositions has been developed. The process involves preparing a reaction mixture of sources of framework elements of a molecular sieve. The reaction mixture can optionally contain molecular sieve seeds. Additional sources of the framework elements are added to give a concentration above the critical supersaturation limit thereby forming beads. Depending on the composition of the reaction mixture and the reaction conditions one can obtain beads which are substantially amorphous, to beads that are substantially crystalline molecular sieve. These beads in turn can be further processed to deposit a molecular sieve layer onto the beads.Type: GrantFiled: June 14, 2004Date of Patent: October 28, 2008Assignee: UOP LLCInventors: Lance L. Jacobsen, Brian S. Konrad, David A. Lesch, Beckay J. Mezza, James G. Vassilakis, Cynthia R. Berinti-Vondrasek
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Patent number: 7442367Abstract: The present invention discloses a production method for a zeolite shaped body in which a tetrapropylammonium hydroxide (TPAOH) solution and tetrapropylammonium bromide (TPABr) are added to a silica sol, an obtained prepared solution is heated under a condition that crystallization and/or precipitation does not occur in the prepared solution in a sealed vessel, the heated prepared solution is dried, an obtained dry gel is shaped, and the shaped dry gel is subjected to crystallization treatment in steam, and it is possible to efficiently produce a zeolite shaped body on which a zeolite membrane can be formed and maintained without generating any crack, and which satisfies both reduction of pressure loss and maintenance or improvement of mechanical strength, when used as a gas separation membrane such as a molecular sieve membrane or a pervaporation membrane.Type: GrantFiled: February 7, 2005Date of Patent: October 28, 2008Assignee: NGK Insulators, Ltd.Inventors: Miyuki Yabuki, Kenji Suzuki, Shinji Nakamura, Toshihiro Tomita
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Patent number: 7435699Abstract: A non-homogeneous adsorbent is described, formed of a core and at least one continuous outer layer in which the core of said adsorbent has a volume adsorptive capacity representing at least 35% of the volume of the adsorbent and the outer layer has a diffusional selectivity greater than 5. The adsorbent is used in gas-separation processes or liquid-separation processes.Type: GrantFiled: July 11, 2003Date of Patent: October 14, 2008Assignee: Institut Francais du PetroleInventors: Elsa Jolimaitre, Loïc Rouleau, Olivier Ducreux
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Patent number: 7431913Abstract: A new EUO-structural-type zeolite that comprises at least one tetravalent element X that is selected from among silicon, tin, titanium and germanium and optionally at least one trivalent element T that is selected from among aluminum, iron, boron, indium and gallium is described. This new zeolite is characterized in that it contains, in its crude synthesis form, the nitrogen-containing organic cation of formula N,N-dimethyl-N,N-di(3,3-dimethylbutyl)ammonium. A method for the preparation of this zeolite is also described.Type: GrantFiled: December 14, 2006Date of Patent: October 7, 2008Assignee: Institut Francais du PetroleInventors: Philippe Caullet, Sylvie Lacombe, Jean-Louis Paillaud, Nicolas Bats, Loic Rouleau
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Catalysts For Co Oxidation,Voc Combustion And Nox Reduction And Methods Of Making And Using The Same
Publication number: 20080233039Abstract: The present invention is directed to carbon monoxide oxidation reactions in the presence of an O2 containing gas, nitrogen oxide conversion reactions, volatile organic compound conversion reactions in the presence of an O2 containing gas, and combinations thereof, and catalysts for use in those reactions. The catalyst comprises cobalt, its oxides or mixtures thereof and ruthenium, its oxides or mixtures thereof.Type: ApplicationFiled: June 1, 2006Publication date: September 25, 2008Applicant: SYMYX TECHNOLOGIES, INC.Inventors: Alfred Hagemeyer, Anthony F. Volpe, Valery Sokolovskii, Andreas Lesik, Guido Streukens -
Publication number: 20080227628Abstract: Disclosed herein are mesoporous material derived from a parent zeolite. In an embodiment of the invention, the mesoporous material derived from a parent zeolite, has an internal volume greater than about 0.35 cc/g and a surface area greater than about 250 m2/g, the mesoporous material comprises micropores having a surface area and mesopores, wherein the surface area of the micropores in the mesoporous material is less than about 25% of that in the parent zeolite, wherein less than about 3% of the internal volume of the mesoporous material is provided by micropores and wherein the mesopores are essentially homogeneously distributed and form an essentially interconnected network. In another embodiment of the invention, the mesoporous material derived from an alumina-rich parent zeolite has an internal volume greater than about 0.Type: ApplicationFiled: October 12, 2006Publication date: September 18, 2008Inventor: Raymond Le Van Mao
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Publication number: 20080221326Abstract: Process for producing a shaped body comprising a microporous material and at least one silicon-containing binder, which comprises the steps (I) preparing a mixture comprising the microporous material, the binder, a make-up aid and a solvent, (II) mixing and densifying the mixture, (III) shaping the densified mixture to give a shaped body, (IV) drying the shaped body and (V) calcining the dried shaped body, wherein the binder used is an organosilicon compound, shaped bodies which can be produced by this process, their use as catalyst, in particular in organic synthesis and very particularly preferably in a process for preparing triethylenediamine (TEDA).Type: ApplicationFiled: June 10, 2005Publication date: September 11, 2008Inventors: Marco Bosch, Matthias Frauenkron, Milan Kostur, Otto Hofstadt
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Patent number: 7422732Abstract: The present invention relates to new crystalline molecular sieve SSZ-74 prepared using a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium)dication as a structure-directing agent, and its use in catalysts for synthesizing amines.Type: GrantFiled: December 21, 2006Date of Patent: September 9, 2008Assignee: Chevron U.S.A. IncInventors: Stacey I. Zones, Allen W. Burton, Jr.
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Publication number: 20080210599Abstract: “FCC equilibrium catalysts, even when highly contaminated with vanadium, can be upgraded to make them suitable again for use in catalytic processes, for instance, as catalyst additives in FCC, by employing a process comprising the steps of (a) treating an FCC equilibrium catalyst that contains alumina and zeolite with an acidic solution to obtain an acid-treated equilibrium catalyst, and (b) contacting the acid-treated equilibrium catalyst with an aqueous solution or suspension of a divalent metal compound.Type: ApplicationFiled: January 6, 2006Publication date: September 4, 2008Inventors: Paul O'Connor, Erik Jeroen Laheij, Dennis Stamires, Oscar Rene Chamberlain Pravia, Rodolfo Eugenio Roncolatto, Yiu Lau Lam
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Patent number: 7419930Abstract: The present invention regards a catalytic composition comprising gallium, at least one element chosen in the group of the lanthanides, and a zeolite belonging to the MFI, MEL or MFI/MEL families, the crystal lattice of which is made up of silicon oxide and at least one metal oxide chosen from among aluminum oxide, boron oxide and gallium oxide. Preferably, in the catalytic compositions of the present invention a zeolite is used belonging to the MFI family characterized by crystallites which for at least 90% have diameters smaller than 500 ? and which can form agglomerates of submicron dimensions characterized by possessing at least 30% of the extrazeolitic porosity in the region of the mesopores. The catalytic compositions of the present invention can, in addition, contain rhenium. These catalytic compositions are useful in processes of aromatization of hydrocarbons containing from 3 to 6 carbon atoms, preferably, hydrocarbon mixtures containing olefins.Type: GrantFiled: October 24, 2006Date of Patent: September 2, 2008Assignees: Eni S.p.A., Enichem S.p.A., Enitecnologie S.p.A.Inventors: Angela Carati, Marco Tagliabue, Carlo Perego, Roberto Millini, Stefano Amarilli, Giuseppe Terzoni
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Patent number: 7419931Abstract: A catalyst is described which comprises at least one zeolite with channels with openings defined by a ring having 10 oxygen atoms (10 MI), at least one zeolite with at least channels or side pockets with openings defined by a ring having 12 oxygen atoms (12 MR), at least one metal selected from the group constituted by group IIIA and VIIB metals and at least one porous mineral matrix. Said catalyst optionally also contains at least one metal selected from the group constituted by group IVA and VIB metals. The catalyst of the invention is used in a process for the transalkylation of alkylaromatic hydrocarbons such as toluene or benzene and alkylaromatics containing at least 9 carbon atoms.Type: GrantFiled: April 13, 2005Date of Patent: September 2, 2008Assignee: Institute Francais du PetroleInventors: José Manuel Serra, Avelino Corma, Emmanuelle Guillon
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Patent number: 7417003Abstract: The present invention provides a catalyst particle of an inner core, an outer layer surrounding and bonded to the inner core, the outer layer of a zeolite beta catalyst, and the outer layer having a volumetric fraction from about 0.17 to about 0.62 of the entire catalyst particle.Type: GrantFiled: December 29, 2006Date of Patent: August 26, 2008Assignee: UOP LLCInventors: Robert J. Schmidt, Deng-Yang Jan, Raelynn M. Miller, James A. Johnson
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Patent number: 7416809Abstract: An improved direct liquid-feed fuel cell having a solid membrane electrolyte for electrochemical reactions of an organic fuel. Improvements in interfacing of the catalyst layer and the membrane and activating catalyst materials are disclosed.Type: GrantFiled: June 1, 2006Date of Patent: August 26, 2008Assignee: California Institute of TechnologyInventors: Sekharipuram R. Narayanan, Subbarao Surampudi
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Patent number: 7417004Abstract: This invention relates to a catalyst for synthesis of dimethyl ether and its preparation methods. More specifically, this invention relates to a catalyst with improved formulation for a highly efficient synthesis of dimethyl ether via dehydration of methanol. These catalysts are composed of hydrophobic zeolites, cations selected from alkali metal, alkaline earth metal, or ammonium along with alumina, silica, or silica-alumina.Type: GrantFiled: August 30, 2004Date of Patent: August 26, 2008Assignee: SK Energy Co., Ltd.Inventors: Ki-Won Jun, Hyun-Seog Roh, Jae-Woo Kim, Jeon Keun Oh, Jin Hwan Bang
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Patent number: 7410924Abstract: The invention relates to a hydrocracking catalyst containing: a hydrogenative component which is selected from at least one group VIB metal, at least one group VIII metal and combinations of same; at least one matrix comprising at least one oxide which is selected from an amorphous oxide, an oxide with low crystallinity and a mixture of both; and at least one microporous crystalline solid material which, in the calcined and anhydrous state, has molar composition X2O3:nYO2:mZO2, wherein X is a trivalent element, Y is at least one tetravalent element that is different from Ge and Z is Ge, and which, im the calcined and anhydrous state, has an X-ray diffractogram containing at least diffraction lines with d values=13.64, 7.87, 4.82, 4.55, 4.11 and 3.41 ?. The invention also relates to the method of preparing the inventive catalyst and to the use of same in hydrocarbon hydrocracking processses.Type: GrantFiled: January 14, 2005Date of Patent: August 12, 2008Assignees: Consejo Superior de Investigaciones Cientificas, Universidad Politecnica de ValenciaInventors: Avelino Corma Canós, Agustin Martinez Feliu, Fernando Rey García, María José Díaz Cabañas, Carlos López Cruz
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Patent number: 7407907Abstract: A catalyst for selectively opening cyclic paraffins has been developed. The catalyst comprises a Group VIII metal, such as platinum, a modifier component, such as niobium or ytterbium, a molecular sieve, such as UZM-16 and a refractory inorganic oxide such as alumina. The Group VIII metal and modifier component are preferably deposited on the refractory inorganic oxide. A process for using the catalyst is also disclosed.Type: GrantFiled: August 25, 2006Date of Patent: August 5, 2008Assignee: UOP LLCInventors: Leonid B. Galperin, Irina Galperin, legal representative, Michael J. McCall, Joseph A. Kocal
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Patent number: 7405177Abstract: A catalyst and process for opening aliphatic cyclic hydrocarbons have been developed. The catalyst comprises a catalytic metal component, a molecular sieve and refractory inorganic oxide component. The molecular sieve is selected from the group consisting of MAPSOs, SAPOs, UZM-8, UZM-8HS, UZM-15, UZM-15HS, UZM-16, UZM-16HS and mixtures thereof. Preferred catalytic metals include platinum, palladium and rhodium. The catalyst may also contain a modifier such as niobium, titanium, or rare earth metals.Type: GrantFiled: November 8, 2005Date of Patent: July 29, 2008Assignee: UOP LLCInventors: Irina Galperin, legal representative, Deng-Yang Jan, Michael J. McCall, Joseph A. Kocal, Leonid B. Galperin
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Patent number: 7405175Abstract: A proton type ? zeolite is used as catalyst. Nitrogen oxides in the exhaust gas containing excessive oxygen is reduced/removed by making the exhaust gas contact with the catalyst under the existence of methanol and/or dimethyl ether as reducing agent. It is desirable that a SiO2/Al2O3 molar ratio of the proton type ? zeolite is within 20-70. Thereby, the present catalyst has an excellent denitration performance and durability even against the exhaust gas containing sulfur oxides, and the denitration performance does not deteriorate even when the exhaust gas is at comparatively low temperature of 300-400° C.Type: GrantFiled: June 3, 2003Date of Patent: July 29, 2008Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Masashi Sugiyama, Kengo Soda
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Publication number: 20080176736Abstract: A zeolite catalyst is prepared by treating a zeolite with a phosphorus compound to form a phosphorus-treated zeolite. The phosphorus-treated zeolite is heated to a temperature of about 300° C. or higher and combined with an inorganic oxide binder material to form a zeolite-binder mixture. The zeolite-binder mixture is heated to a temperature of about 400° C. or higher to form a bound zeolite catalyst. The bound zeolite may exhibit at least two 31P MAS NMR peaks with maxima at from about 0 to about ?55 ppm, with at least one peak having a maximum at from about ?40 to about ?50 ppm. Zeolites containing 10-oxygen ring pores that have been prepared in such a way may be used in aromatic alkylation by contacting the bound zeolite catalyst with an aromatic alkylation feed of an aromatic compound and an alkylating agent under reaction conditions suitable for aromatic alkylation.Type: ApplicationFiled: March 25, 2008Publication date: July 24, 2008Applicant: Saudi Basic Industries CorporationInventors: Ashim Kumar Ghosh, Neeta Kulkarni, Pamela Harvey
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Publication number: 20080171649Abstract: Catalysts for converting polyalkylaiomatics to monoalkylaromatics, particularly cumene and ethyl benzene are disclosed which comprise modified Y-85 or LZ-210 zeolites. For cumene and ethylbenzene production, a disclosed catalyst, made of 80 wt % zeolite and 20 wt % alumina binder on a volatile-flee basis, has one or more of the following physical characteristics: (1) an absolute intensity of the modified Y zeolite as measured by X-ray diffraction (XRD) of preferably at least 50 and (2) a framework aluminum of the modified Y zeolite of preferably at least 50% of the aluminum of the modified Y zeolite.Type: ApplicationFiled: January 12, 2007Publication date: July 17, 2008Inventors: Deng-Yang Jan, Robert J. Schmidt, Mathias P. Koljack, Thomas M. Reynolds, Christopher J. Garrett
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Patent number: 7399726Abstract: Large crystals of titanium silicalite or intergrowths of intergrown smaller crystals, having a mean particle size greater than 2 ?m, have been found catalytically effective at commercially reasonable rates for the epoxidation of olefins in the presence of hydrogen peroxide. Crystals synthesized with a silica source having a low sodium content exhibit high levels of production and selectivity. The crystals have a low attrition rate and are easily filterable from a product stream.Type: GrantFiled: March 23, 2005Date of Patent: July 15, 2008Assignee: Lyondell Chemical Technology, L.P.Inventors: Bernard Cooker, Wilson H. Onimus, Jennifer D. Jewson, Ralph M. Dessau
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Patent number: 7396793Abstract: An exhaust gas purifying catalyst contains copper oxide, ZSM-5 and/or zeolite ?, and an oxide of magnesium and/or calcium is further added thereto. A process for purifying an exhaust gas using such a catalyst is also included. By using the catalyst, NOx in an exhaust gas containing much oxygen such as exhaust gas of diesel engines can be efficiently removed and oxidation of SO2 under high-temperature conditions can be suppressed.Type: GrantFiled: November 18, 2003Date of Patent: July 8, 2008Assignees: ICT Co., Ltd., International Catalyst Technology Inc.Inventors: Takeshi Matsumoto, Takao Kobayashi, Takuji Nakane, Takahiro Uno, Makoto Horiuchi
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Publication number: 20080161180Abstract: A catalyst composition suitable for reacting hydrocarbons such as in fluidized catalytic cracking (FCC) comprises an attrition-resistant particulate having at least 30% of an intermediate pore zeolite, kaolin, a phosphorous compound, and a high density unreactive component. An example of an unreactive component is alpha-alumina. The catalyst can also contain a reactive alumina of high surface area.Type: ApplicationFiled: March 5, 2008Publication date: July 3, 2008Inventors: Gary M. Smith, Barry K. Speronello
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Publication number: 20080156194Abstract: An environmental control for use in air handling systems that are required to provide highly effective filtration of noxious gases is provided. In one embodiment, a filtration system utilizes a novel combination of at least one metal-doped silica-based gel and zeolite materials to trap and/or modify, and remove such undesirable gases (such as ammonia, ethylene oxide, formaldehyde, and nitrous oxide, as examples) from an enclosed environment. The gel component exhibits specific porosity requirements and density measurements; the zeolite component is generally acidic and is preferably not reacted with any salts or like substances. The novel combination of such gels and zeolites permits highly effective noxious gas filtration over a wide range of known toxic industrial chemicals such that excellent breakthrough results are attained, particularly in comparison with prior media filtration products.Type: ApplicationFiled: December 27, 2006Publication date: July 3, 2008Inventors: Michael C. Withiam, Fitzgerald A. Sinclair, David Friday, Terry Nassivera
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Patent number: 7393804Abstract: An exhaust gas purifying catalyst has a catalytic component including copper, ZSM-5, and ? zeolite. This exhaust gas purifying catalyst reduces nitrogen oxides even from low temperature range and exhibits durability even under a thermal load of high temperature.Type: GrantFiled: November 18, 2003Date of Patent: July 1, 2008Assignees: ICT Co., Ltd., International Catalyst Technology Inc.Inventors: Takeshi Matsumoto, Takao Kobayashi, Takuji Nakane, Takahiro Uno, Makoto Horiuchi
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Patent number: 7393805Abstract: A process for preparing a transalkylation catalyst, the catalyst itself, and a transalkylation process for using the catalyst are herein disclosed. The catalyst comprises rhenium metal on a solid-acid support such as mordenite, which has been treated with a sulfur-based agent. Such treatment reduces the amount of methane produced by metal hydrogenolysis in a transalkylation process wherein heavy aromatics like A9+ are reacted with toluene to produce xylenes. Reduced methane production relative to total light ends gas production results in lower hydrogen consumption and lower reactor exotherms.Type: GrantFiled: April 11, 2007Date of Patent: July 1, 2008Assignee: UOP LLCInventors: Edwin P. Boldingh, Antoine Negiz, Gregory F. Maher, Paula L. Bogdan, Dean E. Rende
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Publication number: 20080154081Abstract: A catalyst composition comprises (a) a MCM-22 family molecular sieve; and (b) a binder, wherein the MCM-22 family molecular sieve is characterized by an average crystal agglomerate size of less than or equal to 16 microns. The catalyst composition may further have a second molecular sieve having a Constraint Index of less than 12, e.g., less than 2. Examples of molecular sieve useful for this disclosure are a MCM-22 family molecular sieve, zeolite Y, and zeolite Beta. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent.Type: ApplicationFiled: December 21, 2006Publication date: June 26, 2008Inventors: Christine N. Elia, Frederick Y. Lo, Michael C. Clark, Morris C. Smith, Michael Hryniszak, Mohan Kalyanaraman
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Patent number: 7390347Abstract: Methods and apparatus are taught for selectively oxidizing carbon monoxide in a source of gas containing carbon monoxide and hydrogen. A gas containing carbon monoxide and hydrogen is fed into a membrane reactor (10, 50, 60) capable of selectively absorbing the carbon monoxide. Preferably, the reactor comprises a substantially defect-free zeolite membrane (4) having at one metal that acts as an oxidation catalyst. The zeolite membrane (4) may be supported on a porous ceramic support (2, 52, 61) and the average pore diameter is preferably between about 0.3 nm and about 1.0 nm. Moreover, the substantially defect-free zeolite membrane (4) preferably has a thickness between about 0.1 micron and about 50.0 microns. The at least one metal is preferably capable of selectively oxidizing the carbon monoxide and is preferably platinum. Preferably, the temperature of reactor housing is maintained at about 200-300° C.Type: GrantFiled: January 5, 2007Date of Patent: June 24, 2008Assignee: Noritake Co., Ltd.Inventors: Katsuki Kusakabe, Yasuhisa Hasegawa, Shigeharu Morooka, Yasunori Ando
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Patent number: 7390762Abstract: A method for synthesizing high-content NaY molecular sieves with kaolin sprayed microspheres includes adding functional components and deionized water into kaolin so as to be pulped into a mixed slurry. The slurry is sprayed into microspheres. The microspheres are calcined at a temperature between 700 and 1,000° C. and mixed with a directing agent for crystallization. The resultant solid is filtrated and washed with water and then dried to obtain a final in-situ crystallized product with high content of molecular sieves.Type: GrantFiled: November 23, 2005Date of Patent: June 24, 2008Assignee: PetroChina Company LimitedInventors: Xionghou Gao, Honghai Liu, Baojie Wang, Changyan Duan, Xinmei Pang, Li Zhang, Lianhong Zhao, Jiangang Ma, Yunheng Liu
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Patent number: 7390763Abstract: The invention is directed to a method of making a small crystal SSZ-32 zeolite, known as SSZ-32X. The catalyst is suitable for use in a process whereby a feed including straight chain and slightly branched paraffins having 10 or more carbon atoms is dewaxed to produce an isomerized product, with increased yield of isomerized material and decreased production of light ends.Type: GrantFiled: October 31, 2003Date of Patent: June 24, 2008Assignee: Chevron U.S.A. Inc.Inventors: Stacey I. Zones, Guang Zhang, Kamala R. Krishna, Joseph A. Biscardi, Paul Marcantonio, Euthimios Vittoratos
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Patent number: 7387978Abstract: We disclose a method for converting toluene to xylenes, comprising contacting toluene with methanol in the presence of a silica-bound HZSM-5 catalyst. As an example, in one embodiment the method can include: (i) first silylating HZSM-5, to form silylated HZSM-5; (ii) first calcining the silylated HZSM-5, to form calcined silylated HZSM-5; (iii) binding the calcined silylated HZSM-5 to silica, to form silica-bound calcined silylated HZSM-5; (iv) extruding the silica-bound calcined silylated HZSM-5, to form extruded silica-bound calcined silylated HZSM-5; (v) second calcining the extruded silica-bound calcined silylated HZSM-5, to form extruded silica-bound twice-calcined silylated HZSM-5; (vi) second silylating the extruded silica-bound twice-calcined silylated HZSM-5, to form extruded silica-bound twice-calcined twice-silylated HZSM-5; and (vii) third calcining the extruded silica-bound twice-calcined twice-silylated HZSM-5, to form the silica-bound HZSM-5 catalyst.Type: GrantFiled: January 18, 2006Date of Patent: June 17, 2008Assignee: Chevron Phillips Chemical Company LPInventors: An-hsiang Wu, Charles A. Drake
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Patent number: 7384887Abstract: This invention is directed to a hardened molecular sieve catalyst composition, a method of making the composition and a method of using the composition. The catalyst composition is made by mixing together molecular sieve, liquid, and an effective hardening amount of a dried molecular sieve catalyst to form a slurry. The slurry is dried, and then calcined to form the hardened molecular sieve catalyst composition. The hardened molecular sieve catalyst is highly attrition resistant.Type: GrantFiled: May 15, 2006Date of Patent: June 10, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Yun-Feng Chang, Stephen N. Vaughn, Luc R. M. Martens, Kenneth R. Clem
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Patent number: 7381676Abstract: This disclosure relates to a catalyst composition comprising (a) a crystalline MCM-49 molecular sieve; and (b) a binder comprising at least 1 wt. % of a titanium compound. In one aspect of this disclosure, the titanium compound comprises at least one of titanium oxide, titanium hydroxide, titanium sulfate, titanium phosphate, or any combination thereof. In another aspect of this disclosure, the catalyst composition further comprises a crystalline MCM-22 family molecular sieve comprising at least one of MCM-22, MCM-36, MCM-49, MCM-56, ITQ-1, ITQ-2, ITQ-30, PSH-3, ERB-1, SSZ-25, or any combination thereof. In other embodiments, this disclosure relates to a process for preparing the catalyst composition of this disclosure, the process comprises (a) providing the crystalline MCM-49 molecular sieve and the binder comprising at least 1 wt. % of a titanium compound to form a mixture; and (b) forming the mixture into the catalyst composition. In a preferred embodiment, the forming step comprises extruding.Type: GrantFiled: January 16, 2007Date of Patent: June 3, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Christine N. Elia, Frederick Y. Lo, Jeffrey T. Elks, Darryl D. Lacy, Mohan Kalyanaraman
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Patent number: 7381675Abstract: A catalyst comprising a noble metal supported on a diatomaceous earth and a transition metal zeolite is disclosed. The catalyst is used in an epoxidation process comprising reacting an olefin, hydrogen, and oxygen. The diatomaceous earth is readily available and may be used in a slurry process without further particle size enlargement.Type: GrantFiled: December 19, 2006Date of Patent: June 3, 2008Assignee: Lyondell Chemical Technology, L.P.Inventors: Jude T. Ruszkay, Roger A. Grey
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Patent number: 7381677Abstract: Catalysts comprise a combination of molecular sieve having a pore diameter of from about 4 to 8 angstroms and a catalytically-effective amount of molybdenum hydrogenation component and a sufficient amount of at least one platinum group metal hydrogenation component to enhance the isomerization activity of the catalyst.Type: GrantFiled: September 14, 2005Date of Patent: June 3, 2008Assignee: UOP LLCInventors: Paula L. Bogdan, Patrick C. Whitchurch, Robert B. Larson, James E. Rekoske
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Patent number: 7378364Abstract: Transalkylation catalysts comprising acidic molecular sieve, palladium and germanium have good activities and attenuate aromatic ring saturation and lights co-production provided that sufficient palladium is contained in the catalyst.Type: GrantFiled: July 28, 2006Date of Patent: May 27, 2008Assignee: UOP LLCInventors: Maureen L. Bricker, Frank S. Modica
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Patent number: 7375047Abstract: Catalysts comprising a combination of molecular sieve having a pore diameter of from about 4 to 8 angstroms and a catalytically-effective amount of molybdenum hydrogenation component in an amorphous aluminum phosphate binder provide processes for isomerizing xylene and dealkylating ethylbenzene in feed streams that exhibit stability, selectivity and low ring loss.Type: GrantFiled: September 14, 2005Date of Patent: May 20, 2008Assignee: UOP LLCInventors: Robert B. Larson, James E. Rekoske, Patrick C. Whitchurch, Paula L. Bogdan
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Patent number: 7375048Abstract: A catalyst composition suitable for reacting hydrocarbons such as in fluidized catalytic cracking (FCC) comprises an attrition-resistant particulate having at least 30% of an intermediate pore zeolite, kaolin, a phosphorous compound, and a high density unreactive component. An example of an unreactive component is alpha-alumina. The catalyst can also contain a reactive alumina of high surface area.Type: GrantFiled: March 29, 2005Date of Patent: May 20, 2008Assignee: BASF Catalysts LLCInventors: Gary M. Smith, Barry K. Speronello
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Patent number: 7368410Abstract: A zeolite catalyst is prepared by treating a zeolite with a phosphorus compound to form a phosphorus-treated zeolite. The phosphorus-treated zeolite is heated to a temperature of about 300° C. or higher and combined with an inorganic oxide binder material to form a zeolite-binder mixture. The zeolite-binder mixture is heated to a temperature of about 400° C. or higher to form a bound zeolite catalyst. The bound zeolite may exhibit at least two 31P MAS NMR peaks with maxima at from about 0 to about ?55 ppm, with at least one peak having a maximum at from about ?40 to about ?50 ppm. Zeolites containing 10-oxygen ring pores that have been prepared in such a way may be used in aromatic alkylation by contacting the bound zeolite catalyst with an aromatic alkylation feed of an aromatic compound and an alkylating agent under reaction conditions suitable for aromatic alkylation.Type: GrantFiled: August 3, 2005Date of Patent: May 6, 2008Assignee: Saudi Basic Industries CorporationInventors: Ashim Kumar Ghosh, Neeta Kulkarni, Pamela Harvey
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Patent number: 7357904Abstract: The present invention relates to new crystalline molecular sieve SSZ-74 prepared using a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium)dication as a structure-directing agent, and its use in the reduction of oxides of nitrogen in a gas stream such as the exhaust from an internal combustion engine.Type: GrantFiled: December 21, 2006Date of Patent: April 15, 2008Assignee: Chevron CorporationInventors: Stacey I. Zones, Allen W. Burton, Jr.
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Publication number: 20080076660Abstract: Supported nickel catalyst having high nickel loading and dispersion are manufactured using a dispersing agent. The dispersing agent molecules include at least one functional group that bonds with the nickel atoms and influences nanoparticle formation. The support material is loaded with at least about 5% nickel, more preferably at least about 8%, and most preferably at least about 12% by weight of the total catalyst. Catalysts manufactured using the organic dispersing agents and loaded with the foregoing amounts of nickel have metal dispersions greater than about 5% as measured by hydrogen adsorption, more preferably greater than about 10%, and most preferably greater than about 15%.Type: ApplicationFiled: September 22, 2006Publication date: March 27, 2008Inventors: Clementine Reyes, Martin Fransson, Horacio Trevifio, Bing Zhou
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Patent number: 7344631Abstract: Fischer-Tropsch hydrocarbon synthesis using a noncobalt catalyst is used to produce waxy fuel and lubricant oil hydrocarbons from synthesis gas derived from natural gas. The waxy hydrocarbons are hydrodewaxed, with reduced conversion to lower boiling hydrocarbons, by contacting the waxy hydrocarbons, in the presence of hydrogen, with an unsulfided hydrodewaxing catalyst that has been reduced and then treated by contacting it with a stream containing one or more oxygenates.Type: GrantFiled: August 29, 2003Date of Patent: March 18, 2008Assignee: ExxonMobil Research and Engineering CompanyInventors: Adeana Richelle Bishop, William Berlin Genetti, Jack Wayne Johnson, Loren Leon Ansell, Nancy Marie Page
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Patent number: 7344696Abstract: The invention relates to a porous crystalline material (ITQ-24), the preparation method thereof and the use of same in the catalytic conversion of organic compounds. More specifically, the invention relates to a synthetic porous crystalline material which is characterised in that it is formed by tetrahedrally coordinated atoms which are interconnected by means of oxygens. Said material, which comprises a unit cell containing 56 tetrahedrally coordinated atoms, is known as ITQ-24. Moreover, in the calcined anhydrous state, the material has chemical formula nM1/pXO2: YO2, wherein: X is at least one trivalent element, Y is at least one tetravalent element, n is between 0 and 0.2 and M is at least one charge compensation cation in oxidation state p.Type: GrantFiled: August 9, 2005Date of Patent: March 18, 2008Assignees: Consejo Superior de Investigaciones Cientificas, Universidad Politecnica de ValenciaInventors: Avelino Corma Canós, Rafael Castañeda Sánchez, Vicente Fornés Seguí, Fernando Rey García
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Patent number: 7326332Abstract: A multi component catalyst and catalytic cracking process for selectively producing C3 olefins. The catalyst comprises a first molecular sieve having an intermediate pore size, a second molecular sieve and, optionally a third molecular sieve having a large pore size. At least one of the channels of the second molecular sieve has a pore size index that is less than the pore size index of at least one channel of the first molecular sieve. The process is carried out by contacting a feedstock containing hydrocarbons having at least 5 carbon atoms is contacted, under catalytic cracking conditions, with the multi component catalyst. The catalyst finds application in the cracking of naphtha and heavy hydrocarbon feedstocks.Type: GrantFiled: September 25, 2003Date of Patent: February 5, 2008Assignee: ExxonMobil Chemical Patents Inc.Inventors: Tan-Jen Chen, John Scott Buchanan, Brian Erik Henry, Paul F. Keusenkothen, Philip A. Ruziska, David L. Stern
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Patent number: 7323430Abstract: We disclose a method for preparing a catalyst for converting toluene to xylenes.Type: GrantFiled: January 18, 2006Date of Patent: January 29, 2008Assignee: Chevron Phillips Chemical Company LPInventors: An-hsiang Wu, Charles A. Drake
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Patent number: 7320782Abstract: A process for preparing a layered composition has been developed. The composition comprises an inner core and an outer layer comprising a molecular sieve. The process involves providing a slurry comprising inner core particles and sources of the framework elements of the molecular sieve. To this slurry there are added nutrient(s), i.e. framework element sources thereby forming crystals of the molecular sieve which agglomerate onto the inner core. The process is carried out for a time sufficient to form a layer of desired thickness.Type: GrantFiled: June 14, 2004Date of Patent: January 22, 2008Assignee: UOP LLCInventors: Lance L. Jacobsen, Brian S. Konrad, David A. Lesch, Julio C. Marte, Beckay J. Mezza
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Patent number: 7307034Abstract: A transalkylation process for reacting carbon number nine aromatics with toluene to form carbon number eight aromatics such as para-xylene is herein disclosed. The process is based on the discovery that deactivating contaminants present in typical hydrocarbon feeds, such as chlorides, can be removed with an alumina guard bed prior to contacting with a transalkylation catalyst. Effective transalkylation catalysts have a solid-acid component such as mordenite, and a metal component such as rhenium. The invention is embodied in a process, a catalyst system, and an apparatus. The invention provides for longer catalyst cycle life when processing aromatics under commercial transalkylation conditions.Type: GrantFiled: October 19, 2006Date of Patent: December 11, 2007Assignee: UOP LLCInventors: Antoine Negiz, Edwin P. Boldingh, Sergio A. Pischek
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Patent number: 7300899Abstract: A lithium exchanged zeolite X adsorbent blend with improved performance characteristics produced by preparing a zeolite X, preparing a binder which includes highly dispersed attapulgite fibers wherein the tapped bulk density of the highly dispersed attapulgite fibers measured according to DIN/ISO 787 is more than about 550 g/ml, mixing the zeolite X with the binder to form a mixture, forming the mixture into a shaped material, ion exchanging the zeolite X at least 75% with lithium ions, and calcining the shaped material.Type: GrantFiled: July 8, 2005Date of Patent: November 27, 2007Assignee: Zeochem, LLCInventors: Kerry Weston, Dave Jaussaud, Robert L. Chiang
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Patent number: 7285512Abstract: This invention relates to a catalyst and process for selectively hydrodesulfurizing naphtha feedstreams using a catalyst comprising at least one hydrodesulfurizing metal supported on a low acidity, ordered mesoporous support material.Type: GrantFiled: July 26, 2005Date of Patent: October 23, 2007Assignee: ExxonMobile Research and Engineering CompanyInventors: Chuansheng Bai, Gary B. McVicker, Stuart S. Shih, Michael C. Kerby, Edward A. Lemon, Jr., Jean W. Beeckman
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Patent number: 7285511Abstract: A method of modifying a zeolite catalyst to increase para-xylene selectivity of the zeolite catalyst in toluene methylation reactions is provided. The method includes forming a slurry of a ZSM-5-type zeolite and an aqueous solution of a phosphorus compound. Water is removed from the slurry to provide a non-steamed, phosphorus treated ZSM-5 zeolite catalyst without deposition of phosphorus onto the catalyst by organophosphorus vapor deposition. The resulting non-steamed, phosphorus treated ZSM-5 zeolite catalyst has a pore volume of from 0.2 ml/g or less and provides greater than 80% para-xylene selectivity of mixed xylenes when used in toluene methylation.Type: GrantFiled: April 23, 2004Date of Patent: October 23, 2007Assignee: Saudi Basic Industries CorporationInventors: Ashim Kumar Ghosh, Gopalakrishnan Juttu, Pamela Harvey, Neeta Kulkarni