Iron Group Metal And Group Iii Metal Containing (i.e., Fe, Co Or Ni And Sc, Y, Al, Ga, In Or Tl) Patents (Class 502/314)
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Patent number: 7074740Abstract: An improved catalyst for hydrodesulfurization of heavy feedstocks is disclosed. The catalyst is adopted for on-stream catalyst replacement in upflow processing units. It is characterized by a smaller peak pore diameter than general purpose hydrotreating catalysts.Type: GrantFiled: July 2, 2002Date of Patent: July 11, 2006Assignee: Chevron U.S.A. Inc.Inventors: Kirk R. Gibson, Richard Threlkel, Pak C. Leung
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Patent number: 7071371Abstract: A gel composition substantially contained within the pores of a solid material is disclosed for use as a catalyst or as a catalyst support in dehydrogenation and dehydrocyclization processes.Type: GrantFiled: November 21, 2003Date of Patent: July 4, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Kostantinos Kourtakis, Leo E. Manzer
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Patent number: 7060651Abstract: A silica-rich support and a catalyst containing the silica-rich support and a catalytic component. The support has a specific structure characterized by a set of claimed physicochemical properties: in the 29Si MAS NMR spectrum the state of silicon is characterized by the presence of lines with chemical shifts ?100±3 ppm (line Q3) and ?110±3 ppm (line Q4), with the ratio of the integral intensities of the lines Q3/Q4 of from 0.7 to 1.2 (FIG. 1); in the IR spectrum there is an absorption band of hydroxyl groups with the wave number 3620–3650 cm?1 and half-width 65–75 cm?1 (FIG. 2); the carrier has a specific surface area, as measured by the BET techniques from the thermal desorption of argon, SAR=0.5–30 m2/g and the surface, as measured by alkali titration techniques, SNa=10–250 m2/g, with SNa/SAr=5–30.Type: GrantFiled: December 4, 2000Date of Patent: June 13, 2006Assignee: Zakrytoe Aktsionernoe Obschestvo “Kholdingovaya Katalizatornaya Kompania”Inventors: Viktor Vladimirovich Barelko, Bair Sydypovich Balzhinimaev, Sergei Petrovich Kildyashev, Mikhail Grigorievich Makarenko, Anatoly Nikolaevich Parfenov, Ljudmila Grigorievna Simonova, Alexandr Viktorovich Toktarev
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Patent number: 7045479Abstract: Intermediate precursor compositions for use in manufacturing supported reactive catalysts having a controlled coordination structure, and methods for manufacturing such precursor compositions are disclosed. The precursor compositions include a catalyst complex formed from catalyst atoms and a control agent that is applied to a substrate. Reduction of the catalyst complex yields supported reactive catalyst in which a preponderance of the top or outer layer of atoms of the catalyst particles exhibit a controlled coordination number of 2. The supported catalysts are useful for a variety of chemical reactions, including the preparation of hydrogen peroxide with high selectivity.Type: GrantFiled: July 14, 2003Date of Patent: May 16, 2006Assignee: Headwaters Nanokinetix, Inc.Inventors: Bing Zhou, Michael Rueter
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Patent number: 7033566Abstract: A photocatalyst including a metal oxide semiconductor represented by the formula: In1?xMxAO4 wherein M represents a transition metal element, A represents an element belonging to the Group 5a of the Periodic Table and x is a number greater than 0 but smaller than 1.Type: GrantFiled: July 9, 2002Date of Patent: April 25, 2006Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Hironori Arakawa, Zhigang Zou, Kazuhiro Sayama
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Patent number: 7030055Abstract: Compositions for reduction of gas phase reduced nitrogen species and NOx generated during a partial or incomplete combustion catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, (iii) an oxygen storage component, and (iv) a noble metal component, preferably rhodium or iridium, and mixtures thereof, are disclosed. Preferably, the compositions are used as separate additives particles circulated along with the circulating FCC catalyst inventory. Reduced emissions of gas phase reduced nitrogen species and NOx in an effluent off gas of a partial or incomplete combustion FCC regenerator provide for an overall NOx reduction as the effluent gas stream is passed from the FCC regenerator to a CO boiler, whereby as CO is oxidized to CO2 a lesser amount of the reduced nitrogen species is oxidized to NOx.Type: GrantFiled: May 3, 2004Date of Patent: April 18, 2006Assignee: W.R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Patent number: 7030054Abstract: The present invention provides new platinum group metal (“PGM”) free catalytic compositions that comprise silver and/or cobalt stabilized ceria. These compositions facilitate soot oxidation during the regeneration of diesel particulate filters (DPF) thereby replacing PGM formulations. The compositions of the invention are particularly useful as washcoat compositions for DPFs as part of an automotive after-treatment system. Among the formulations tested, the silver-stabilized ceria and cobalt-stabilized ceria formulations e.g. can oxidize soot at 250–300° C. in the presence of NO2 and oxygen, while silver-stabilized ceria can oxidize diesel soot even in the presence of oxygen as the sole oxidizing agent at these temperatures. A perovshite composition containing Ag—La—Mn was very active at temperatures above 300° C.Type: GrantFiled: April 18, 2003Date of Patent: April 18, 2006Assignee: Ford Global Technologlies, LLC.Inventors: Albert N Chigapov, Alexei A Dubkov, Brendan Patrick Carberry, Robert Walter McCabe
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Patent number: 6998366Abstract: Raney alloy catalysts applied to a support are described, said catalysts having an extremely thin layer of Raney alloy with a thickness of 0.01 to 100 ?m. These catalysts are prepared by vapor deposition of the appropriate metals under reduced pressure. They are generally suitable for all known hydrogenation and dehydrogenation reactions and are extremely abrasion-resistant.Type: GrantFiled: December 21, 2000Date of Patent: February 14, 2006Assignee: BASF AktiengesellschaftInventors: Mathias Haake, Gerhard Dörsam, Helmut Boos
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Patent number: 6989346Abstract: Olefinically unsaturated hydrocarbons are prepared from corresponding paraffinic hydrocarbons, in particular propylene is prepared from propane, by dehydrogenation over a catalyst comprising an oxide of a transition metal of group IV B of the Periodic Table, eg. TiO2 or ZrO2, and possibly at least one element selected from among elements of transition group VIII, eg. palladium, platinum or rhodium, and/or an element of transition group VI, eg. chromium, molybdenum or tungsten, and/or rhenium and/or tin and possibly a compound of an alkali metal or alkaline earth metal, a compound of main group III or transition group III or zinc.Type: GrantFiled: January 13, 2003Date of Patent: January 24, 2006Assignee: BASF AktiengesellschaftInventors: Daniel Heineke, Michael Baier, Dirk Demuth, Klaus Harth
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Patent number: 6984310Abstract: Alumina having a pore structure characterized by the absence of macropores, no more than 5% of the total pore volume in pores greater than 350 ?, a high pore volume (greater than 0.8 cc/g measured by mercury intrusion) and a bi-modal pore volume distribution character, where the two modes are separated by 10 to 200 ?, and the primary pore mode is larger than the median pore diameter (MPD), calculated either by volume or by surface area, the MPD by volume being itself larger than the MPD by surface area. Also provided are catalysts made from and processes using such alumina.Type: GrantFiled: December 17, 2002Date of Patent: January 10, 2006Assignee: Shell Oil CompanyInventors: Josiane M. Ginestra, Russell C. Ackerman, Christian G. Michel
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Patent number: 6924387Abstract: The present invention relates to a sold catalyst for manufacturing of a nitrile compound and a method of preparation thereof. More particularly, this invention relates to the solid catalyst expressed by the following formula (1): BiaAaBbQqOx][(100-z) % DdEeFefNigMomOy+z % SiO2] comprising a core catalytic phase expressed by [(100-z) %=DdEeFefNigMomOy+z % SiO2] and a shell catalytic phase expressed by [BinAaBbQqOx], which increases a yield in the manufacturing of a nitrile compound via ammoxidation of olefin, and the method of preparation thereof.Type: GrantFiled: February 12, 1999Date of Patent: August 2, 2005Assignee: Korea Research Institute of Chemical TechnologyInventors: Tae-Sun Chang, Deug-Hee Cho, Dong-Koo Lee, Guijia Li, Young Kil Lee
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Patent number: 6908880Abstract: A process is described for the upgrading of hydrocarbon mixtures which boil within the naphtha range containing sulfur impurities, i.e. a hydrodesulfuration process with contemporaneous skeleton isomerization and reduced hydrogenation degree of the olefins contained in said hydrocarbon mixtures, the whole process being carried out in a single step. The process is carried out in the presence of a catalytic system comprising a metal of group VIB, a metal of group VIII and a carrier of acid nature consisting of a mesoporous silico-alumina.Type: GrantFiled: May 21, 2002Date of Patent: June 21, 2005Assignees: AgipPetroli S.p.A., EniTechnologie S.p.A.Inventors: Laura Maria Zanibelli, Virginio Arrigoni, Marco Ferrari, Donatella Berti
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Patent number: 6902664Abstract: A catalyst composition comprising a minor amount of a low acidity, highly dealuminated ultra stable Y zeolite having an Alpha value of less than about 5, preferable less than about 3 and Broensted acidity measured by FT-IR from about 1 to about 20, preferably from about 1-10, micro mole/g of, a homogeneous, amorphous silica-alumina cracking component having an SB ratio of from about 0.7 to about 1.3, wherein a crystalline alumina phase is present in an amount of no greater than about 10%, preferably no greater than 5% and a catalytic amount of hydrogenation component selected from the group consisting of a Group VI metal, a Group VIII metal, and mixtures thereof is disclosed. The present invention provides for a process for converting hydrocarbonaceous oils comprising contacting the hydrocarbonaceous oils with the catalyst under suitable hydrocarbon conversion conditions.Type: GrantFiled: November 8, 2002Date of Patent: June 7, 2005Assignee: Chevron U.S.A. Inc.Inventor: Hye Kyung C. Timken
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Patent number: 6903047Abstract: The present invention concerns a method for enhancing the activity of vanadium phosphorus oxide (VPO) catalysts. Promoter reagents are grafted onto or reacted with the catalyst surface. An optional calcination and activation heating cycle transforms the catalyst precursor into a final active phase. A preferred VPO catalyst produced has a ratio of molybdenum to vanadium on the surface of the catalyst to molybdenum to vanadium in the overall bulk of the catalyst represented by the equation (Mo/V) Surface?1.10 (Mo/V) overall bulk.Type: GrantFiled: January 16, 2001Date of Patent: June 7, 2005Assignee: E.I. du Pont de Nemours and CompanyInventors: Kostantinos Kourtakis, Pratibha Laxman Gai
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Patent number: 6881390Abstract: Compositions for reduction of gas phase reduced nitrogen species and NOx generated during a partial or incomplete combustion catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, (iii) an oxygen storage component, and (iv) a noble metal component, preferably rhodium or iridium, and mixtures thereof, are disclosed. Preferably, the compositions are used as separate additives particles circulated along with the circulating FCC catalyst inventory. Reduced emissions of gas phase reduced nitrogen species and NOx in an effluent off gas of a partial or incomplete combustion FCC regenerator provide for an overall NOx reduction as the effluent gas stream is passed from the FCC regenerator to a CO boiler, whereby as CO is oxidized to CO2 a lesser amount of the reduced nitrogen species is oxidized to NOx.Type: GrantFiled: August 18, 2003Date of Patent: April 19, 2005Assignee: W. R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Patent number: 6878847Abstract: A catalyst useful for catalytic vapor-phase oxidation of isobutylene, t-butanol or propylene to produce respectively corresponding unsaturated aldehyde and unsaturated carboxylic acid is provided. The catalyst consists of ring-formed shaped bodies composed of (i) a catalyst composition containing at least molybdenum and bismuth as the active ingredients and (ii) inorganic fibers. The catalyst excels in mechanical strength, can give the object products at high yield and shows little activity degradation with time.Type: GrantFiled: April 20, 2004Date of Patent: April 12, 2005Assignee: Nippon Shokubai Co., Ltd.Inventors: Hiroto Kasuga, Eiichi Shiraishi
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Patent number: 6875723Abstract: A process for the production mixed metal oxide containing catalysts comprising the steps of: dissolution of metals Me=Fe, Ni, Al, Cu, Co, Zn, Cr, in nitric acid providing an acid solution of metal mixed nitrate products, aluminium can be added either as nitrate or hydroxide; addition of a carbonhydrate, an amino acid and/or a carboxylic acid; decomposition at 250-700° C. with free air supply of the acid solution by spraying onto the inner surface of one or more rotary kilns, into a spray calcination fluid bed, into a tower kiln or into a steel band conveyor furnace to iron oxide and NOx; and optionally regeneration of the formed NOx to concentrated nitric acid and recycling of produced nitric acid to the first step.Type: GrantFiled: October 7, 2002Date of Patent: April 5, 2005Assignee: Haldor Topsoe A/SInventors: Keld Johansen, Petru Gordes
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Patent number: 6872678Abstract: The present invention pertains to a process for activating a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an S-containing organic additive, wherein the catalyst is contacted with hydrogen at a temperature between room temperature and about 600° C., preferably about 100-450° C., and prior to or during the contacting with hydrogen the catalyst is contacted with an organic liquid. Preferably, the contacting with the organic liquid is carried out prior to the contacting with hydrogen. The organic liquid may be a hydrocarbon with a boiling range of 150-500° C., preferably white oil, gasoline, diesel, or gas oil or mineral lube oil. It was found that the application of an organic liquid prior to or during the hydrogen treatment results in catalysts with an increased activity. The invention also comprises catalyst made by the above process and the use of such catalyst in hydrotreating.Type: GrantFiled: April 10, 2001Date of Patent: March 29, 2005Assignee: Akzo Nobel N.V.Inventor: Sonja Eijsbouts
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Patent number: 6860986Abstract: A catalyst composition comprising a low acidity, highly dealuminated ultra stable Y zeolite having an Alpha value of less than about 3 and Broensted acidity measured by FT-IR from about 1 to about 20, preferably from about 1-10, micro mole/g of, an amorphous cracking component and a catalytic amount of hydrogenation component selected from the group consisting of a Group VI metal, a Group VIII metal, and mixtures thereof is disclosed. The present invention provides for a process for converting hydrocarbonaceous oils comprising contacting the hydrocarbonaceous oils with the catalyst under suitable hydrocarbon conversion conditions. Such processes in include, but are not limited to, single stage hydrocracking, two-stage hydrocracking, series-flow hydrocracking, mild hydrocracking, lube hydrocracking, hydrotreating, lube hydrofinishing, hydrodesulphurization, hydrodenitrification, catalytic dewaxing and catalytic cracking.Type: GrantFiled: November 8, 2002Date of Patent: March 1, 2005Assignee: Chevron U.S.A. Inc.Inventors: Hye Kyung C. Timken, Lucy Melinda Bull, Thomas V. Harris
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Patent number: 6818589Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a tungstated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element, yttrium or mixtures thereof, which is preferably ytterbium or holmium, and at least one platinum-group metal component which is preferably platinum.Type: GrantFiled: June 18, 2002Date of Patent: November 16, 2004Assignee: UOP LLCInventor: Ralph D. Gillespie
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Patent number: 6802958Abstract: The invention pertains to a process for preparing spherical oxide particles comprising the steps of shaping a starting material comprising an oxide hydrate into particles of substantially constant length by leading the material to a set of two rolls rotating towards each other followed by leading the material to a roll equipped with grooves to form rod-type shapes, cutting the rod-type shapes into particles of substantially constant length, converting the thus formed particles into spheres, and heating the particles to convert the oxide hydrate into an oxide. The process results in particles in which there is substantially no difference in density between the core portion and the shell portion of the particles, which results in a high abrasion resistance. The particles prepared by the claimed process are particularly suitable for the preparation of hydroprocessing catalysts, more in particular for the preparation of hydroprocessing catalysts suitable for the hydroprocessing of heavy hydrocarbon feeds.Type: GrantFiled: November 13, 2000Date of Patent: October 12, 2004Assignees: Nippon Ketjen Co., Ltd., Akzo Nobel NVInventors: Nobuhito Matsumoto, Eiichi Yano, Masafumi Shimowake, Tetsuro Kamo
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Patent number: 6797839Abstract: Multimetal oxide materials containing molybdenum, vanadium, antimony, one or more of the elements W, Nb, Ta, Cr and Ce and nickel and, if required, one or more of the elements Cu, Zn, Co, Fe, Cd, Mn, Mg, Ca, Sr and Ba and having a 2-component structure are used for the gas-phase catalytic oxidative preparation of acrylic acid.Type: GrantFiled: October 5, 2000Date of Patent: September 28, 2004Assignee: BASF AktiengesellschaftInventors: Hartmut Hibst, Signe Unverricht
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Publication number: 20040180784Abstract: A method and catalysts and fuel processing apparatus for producing a hydrogen-rich gas, such as a hydrogen-rich syngas are disclosed. According to the method, a CO-containing gas, such as a syngas, contacts a platinum-free ruthenium-cobalt water gas shift (“WGS”) catalyst, in the presence of water and preferably at a temperature of less than about 450° C., to produce a hydrogen-rich gas, such as a hydrogen-rich syngas.Type: ApplicationFiled: December 18, 2003Publication date: September 16, 2004Inventors: Alfred Hagemeyer, Raymond E. Carhart, Karin Yaccato, Michael Herrmann, Andreas Lesik, Christopher James Brooks, Cory Bernard Phillips
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Patent number: 6780817Abstract: A hydrorefining catalyst of a hydrogenation active metal component supported on a refractory porous carrier has a median pore diameter determined by the nitrogen adsorption method of 8 to 20 nm, a pore volume determined by the nitrogen adsorption method of 0.56 cm3/g or greater, and a pore volume of pores with a pore diameter of 50 nm or larger determined by the mercury intrusion porosimetry method of 0.32 cm3/g or greater. Both the demetallizing activity and metal deposition capacity of the catalyst in hydrogenation and demetallizing of heavy oil are high. The hydrorefining catalyst is obtained by kneading a porous starting powder principally composed of &ggr;-alumina and having a pore capacity of 0.75 m3/g or larger and a mean pore diameter of 10 to 200 &mgr;m, molding and calcining, and supporting an active metal component on the product.Type: GrantFiled: August 8, 2000Date of Patent: August 24, 2004Assignee: Japan Energy CorporationInventors: Hiroki Koyama, Toru Saito, Hideaki Kumagai
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Patent number: 6777371Abstract: Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel-containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), hafnium (Hf), tungsten (W), yttrium (Y), zinc (Zn), zirconium (Zr), or aluminum (Al), or a compound containing one or more of such element(s). In preferred embodiments, the catalyst is a supported catalyst, the alkane is selected from the group consisting of ethane, propane, isobutane, n-butane and ethyl chloride, molecular oxygen is co-fed with the alkane to a reaction zone maintained at a temperature ranging from about 250° C. to about 350° C., and the ethane is oxidatively dehydrogenated to form the corresponding alkene with an alkane conversion of at least about 10% and an alkene selectivity of at least about 70%.Type: GrantFiled: May 4, 2001Date of Patent: August 17, 2004Inventor: Yumin Liu
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Patent number: 6770590Abstract: An exhaust gas emission purifying catalyst has a catalyst layer (20) supported on a carrier (10). The catalyst layer includes a composite oxide, in which noble metals and occluding agents are mixed in order to inhibit the movement of the occluding agents even at high temperatures and to prevent deterioration of the purifying performance of the catalyst after operation at a high temperature. The composite oxide is comprised of silicon (Si) and at least one of cobalt (Co), zirconium (Zr), iron (Fe), and manganese (Mn).Type: GrantFiled: June 7, 2002Date of Patent: August 3, 2004Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventor: Tetsuya Watanabe
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Publication number: 20040147393Abstract: A process for preparing a multimetal oxide composition comprising one of the elements Mo and V and at least one of the elements Te and Sb, in which part solutions which each contain partial amounts of the required starting compounds of the elemental constituents present in the multimetal oxide composition in dissolved form are prepared from the starting compounds, these part solution streams are combined and mixed and the resulting mix solution stream is broken up into fine droplets, dried by means of a hot gas and the solid obtained is treated thermally at elevated temperature.Type: ApplicationFiled: August 26, 2003Publication date: July 29, 2004Applicant: BASF AkiengesellschaftInventors: Hartmut Hibst, Frieder Borgmeier, Klaus Joachim Muller-Engel
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Patent number: 6740769Abstract: A process for producing a molybdenum-bismuth-iron-containing metal oxide fluidized bed catalyst which has a controlled particle diameter and has satisfactory activity and physical properties. In a process for producing a fluidized bed catalyst containing molybdenum-bismuth-iron and silica as a carrier component, dried products formed in a spray drying step and having a particle diameter outside a desired range are pulverized, then the pulverized one is mixed into a slurry before spray drying, the resulting mixture is spray-dried, and the spray-dried particles are subjected to a classification operation to obtain particles having a diameter within the desired range, which are then calcined. The catalyst produced according to the present invention is suitable for producing acrylonitrile by ammoxidation of propylene.Type: GrantFiled: January 4, 2002Date of Patent: May 25, 2004Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Kouichi Mizutani, Yoshimi Nakamura, Yutaka Sasaki, Kunio Mori
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Patent number: 6720284Abstract: The invention relates to an Au/Fe2O3 catalyst comprised of a particle-shaped, co-catalytically active Fe2O3 supporting material with metallic Au clusters deposited thereupon which have a diameter of less than 4.5 nm. The catalyst materials can be obtained by: a) reacting a water-soluble Fe(III) salt in an aqueous medium with a base; b) impregnating the hydroxide gel which is formed thereby and which is still moist with a solution of a water-soluble Au compound in order to deposit complexed Au clusters on the surface of the hydroxide gel; c) removing water from the suspension of the reaction product formed thereby; d) subjecting the dried reaction product to a calcination at temperatures ranging from 350 and 700° C. The inventive catalyst material is especially suited for selective low-temperature CO oxidation in reformate hydrogen which is used as combustible gas for polymer electrolyte membrane (PEM) fuel cells.Type: GrantFiled: February 8, 2001Date of Patent: April 13, 2004Assignee: Zentrum fur Sonnenenergie- und Wasserstoff Forschung Baden-Wurttemberg Gemeinnutizige StiftungInventor: Vojtech Plzak
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Publication number: 20040050754Abstract: The invention pertains to a hydroprocessing catalyst suitable for the conversion of heavy hydrocarbon oils, which comprises 7-20 wt. % of Group VI metal, calculated as trioxide, and about 0.5-6 wt. % of Group VIII metal, calculated as oxide, on a carrier comprising alumina, the catalyst having a surface area of about 100-180 m2/g, a total pore volume of about 0.55 ml/g or more, a % PV(>200 Å d) of at least about 50%, a % PV(>1,000 Å d) of at least about 5%, a % PV(100-1,200 Å d) of at least about 85%, a % PV(>4,000 Å d) of about 0-2%, and a % PV(>10,000 Å d) of about 0-1%. The catalyst of the present invention shows improved metals and asphaltene removal, combined with appropriate sulfur, nitrogen, and Conradson carbon removal. Additionally, the catalyst shows a decrease in sediment formation and an improved conversion in ebullating bed operations. In fixed bed operation, the catalyst produces product with an improved storage stability.Type: ApplicationFiled: October 23, 2003Publication date: March 18, 2004Inventors: Satoshi Abe, Akira Hino, Katsuhisa Fujita
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Patent number: 6706660Abstract: A lean NOx catalyst and method of preparing the same is disclosed. The lean NOx catalyst includes a ceramic substrate, an oxide support material, preferably &ggr;-alumina, deposited on the substrate and a metal promoter or dopant introduced into the oxide support material. The metal promoters or dopants are selected from the group consisting of indium, gallium, tin, silver, germanium, gold, nickel, cobalt, copper, iron, manganese, molybdenum, chromium, cerium, vanadium, oxides thereof, and combinations thereof. The &ggr;-alumina preferably has a pore volume of from about 0.5 to about 2.0 cc/g; a surface area of between about 80 to 350 m2/g; an average pore size diameter of between about 3 to 30 nm; and an impurity level of less than or equal to 0.2 weight percent. In a preferred embodiment the &ggr;-alumina is prepared by a sol-gel method, with the metal doping of the &ggr;-alumina preferably accomplished using an incipient wetness impregnation technique.Type: GrantFiled: December 18, 2001Date of Patent: March 16, 2004Assignee: Caterpillar IncInventor: Paul W. Park
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Publication number: 20040042948Abstract: An object of the present invention is to improve the decomposition at low temperatures of perfluorocompounds containing only fluorine as a halogen, such as CF4, C2F6 and the like. In the present invention, a perfluorocompound containing only fluorine as a halogen is brought into contact with a catalyst comprising Al, Ni and W as catalytically active ingredients and comprising a mixed oxide or complex oxide of Ni and Al and a mixed oxide or complex oxide of W and Ni, in the presence of steam or a combination of steam and air at a temperature of 500 to 800° C. to convert the fluorine in the perfluorocompound to hydrogen fluoride. Employment of the catalyst of the present invention improves the decomposition at low temperatures and hence makes it possible to decompose the perfluoro-compound at a high percentage of decomposition at a lower temperature.Type: ApplicationFiled: August 20, 2003Publication date: March 4, 2004Inventors: Shuichi Kanno, Shin Tamata, Shinichi Ichikawa, Terufumi Kawasaki, Hisao Yamashita
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Patent number: 6693059Abstract: A process useful for the catalytic gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids uses catalysts of particular compositions formed in a particular manner.Type: GrantFiled: January 4, 2001Date of Patent: February 17, 2004Assignee: Rohm and Haas CompanyInventor: Manhua Lin
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Patent number: 6689712Abstract: A hydrorefining catalyst containing a metal belonging to group VIB of the Periodic Table and phosphorus is made by bringing the supporting liquid into contact with a porous carrier formed of inorganic oxide. The supporting liquid is an aqueous solution of a metal belonging to group VIB of the Periodic Table, a phosphorus compound, a hydroxycarboxylic acid, and hydrogen peroxide added to water. Thee hydroxycarboxylic acid content of the supporting liquid is such that molar ratio of group VIB metal:hydroxycarboxylic acid is 1:0.05 to 1:1 and the hydrogen peroxide content of the supporting liquid is such that molar ratio of group VIB metal:hydrogen peroxide is 1:0.03 to 1:1. The catalyst made with the supporting liquid has excellent desulfurization activity.Type: GrantFiled: October 19, 2001Date of Patent: February 10, 2004Assignee: Japan Energy CorporationInventor: Hideo Tanaka
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Patent number: 6683024Abstract: A sorbent composition is provided which can be used in the desulfurization of a hydrocarbon-containing fluid such as cracked gasoline or diesel fuel. The sorbent composition contains a support component and a promoter component with the promoter component being present as a skin on the support component. Such sorbent composition is prepared by a process of impregnating a support component with a promoter component, wherein the promoter component has been melted under a melting condition, followed by drying, calcining, and reducing to thereby provide the sorbent composition.Type: GrantFiled: March 15, 2000Date of Patent: January 27, 2004Assignee: ConocoPhillips CompanyInventors: Gyanesh P. Khare, Donald R. Engelbert
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Patent number: 6680272Abstract: Co-precipitated CoCuMn and CoCuMg catalysts are used in Fischer-Tropsch synthesis.Type: GrantFiled: December 11, 2001Date of Patent: January 20, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventors: Philippe Buess, Raphael Frans Ivo Caers, Alfred Frennet, Eric Ghenne, Claude Hubert, Norbert Kruse
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Patent number: 6673237Abstract: A method of increasing the selective desulfurization of naphtha feed streams that includes: combining a naphtha feed stream with a hydrogen containing gas to form a combined feed stream and reacting the combined feed stream over a monolithic honeycomb catalyst bed containing hydrodesulfurization catalyst components to give a desulfurized naphtha. In conducting such an illustrative embodiment, the percent desulfurization of the naphtha is preferably greater than about 50% and the percent olefin hydrogenation of the naphtha is preferably less than about 50%. The monolithic honeycomb catalyst bed of one alternative and illustrative embodiment preferably has a channel density of about 25 to 1600 cells per square inch; a channel size from about 0.1 to 10 mm; and a channel wall thickness of about 0.01 to about 2.0 mm. The illustrative method should be carried out such that the octane number (R+M/2) of the naphtha feed stream is reduced by no more than 3.0 at 95% desulfurization and preferably no more than 1.5.Type: GrantFiled: November 28, 2001Date of Patent: January 6, 2004Assignee: Corning IncorporatedInventors: Wei Liu, Tinghong Tao
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Patent number: 6673741Abstract: A guard catalyst, comprising an alumina support and molybdenum and/or tungsten and nickel and/or cobalt supported on the alumina support, wherein the total ammonia integral adsorption heat of said alumina support does not exceed 25 J/g, the percentage taken up by the ammonia integral adsorption heat of the ammonia differential adsorption heat greater than 100 kJ/mol does not exceed 10% of the total ammonia integral adsorption heat. Compared to the catalysts of the prior art, the guard catalyst has higher catalytic activity, less coke deposit, lower reduction rate of pore volume, better stability of activity, and higher strength.Type: GrantFiled: September 25, 2001Date of Patent: January 6, 2004Assignees: China Petroleum and Chemical Corporation, Research Institute of Petroleum Processing, SINOPECInventors: Xiaohong Kang, Kui Wang, Weizheng Dong, Qinghe Yang, Li Zhu
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Patent number: 6670515Abstract: A material composed of ultrafine particles, comprising at least a metal element M having catalytic properties and at least a metal element M′ having a standard oxidation potential less than that of M, part at least of M′ atoms being in oxidized form, the average size of the particles being less than 50 nm, at least 80% in number of the particles having an average size less than 10 nm. One particle of the material is constituted by at least a metal element M with oxidation level 0, or by at least a metal element M′ in oxidized form, or by at least a metal element M′ with oxidation level 0, or by the combination of at least two species selected from the three previous species. The material is useful as a catalyst for hydrogenation or coupling reactions.Type: GrantFiled: August 16, 2001Date of Patent: December 30, 2003Assignee: Centre National de la Recherche ScientifiqueInventors: Jean-Marie Dubois, Yves Fort, Olivier Tillement
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Publication number: 20030232235Abstract: An improved metal alloy fuel cell electrocatalyst composition containing platinum, rhodium, molybdenum, and nickel iron or a combination thereof.Type: ApplicationFiled: February 12, 2003Publication date: December 18, 2003Applicant: Symyx Technologies, Inc.Inventors: Alexander Gorer, Peter Strasser, Martin Devenney, Qun Fan, Konstantinos Chondroudis, Daniel M. Giaquinta, Ting He, Hiroyuki Oyanagi, Kenta Urata, Kazuhiko Iwasaki, Hiroichi Fukuda
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Patent number: 6660683Abstract: Compositions for reduction of gas phase reduced nitrogen species and NOx generated during a partial or incomplete combustion catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise (i) an acidic metal oxide containing substantially no zeolite, (ii) an alkali metal, alkaline earth metal, and mixtures thereof, (iii) an oxygen storage component, and (iv) a noble metal component, preferably rhodium or iridium, and mixtures thereof, are disclosed. Preferably, the compositions are used as separate additives particles circulated along with the circulating FCC catalyst inventory. Reduced emissions of gas phase reduced nitrogen species and NOx in an effluent off gas of a partial or incomplete combustion FCC regenerator provide for an overall NOx reduction as the effluent gas stream is passed from the FCC regenerator to a CO boiler, whereby as CO is oxidized to CO2 a lesser amount of the reduced nitrogen species is oxidized to NOx.Type: GrantFiled: October 21, 2002Date of Patent: December 9, 2003Assignee: W.R. Grace & Co.-Conn.Inventors: George Yaluris, John Allen Rudesill
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Patent number: 6638892Abstract: A process for the conversion of syngas by contact of syngas under conversion conditions with catalyst having as components zinc oxide, copper oxide, aluminum oxide, Y zeolite and clay in which (A) in a one step process for conversion of syngas to dimethyl ether, the catalyst has as components an extruded mixture of zinc oxide, copper oxide, gamma aluminum oxide, Y zeolite and clay; (B) in a two step process for conversion of syngas to light olefins, a catalyst system is employed that has in the first step a catalyst mixture of zinc oxide, copper oxide, aluminum oxide, Y zeolite and clay and the catalyst employed in the second step is SAPO-34; SAPO-34 modified with lanthanum(III) nitrate hexahydrate; SAPO-34 modified with magnesium nitrate hexahydrate; SAPO-34 modified with tributyl borate or SAPO-34 modified with triethyl phosphate or (C) in a two step process for conversion of syngas to light olefins, the pressure on the effluent from the contact of syngas with a mixture of zinc oxide, copper oxide, aluminumType: GrantFiled: April 18, 2002Date of Patent: October 28, 2003Assignee: ConocoPhillips CompanyInventors: An-hsiang Wu, Jianhua Yao, Charles A. Drake
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Patent number: 6632772Abstract: A method of coating a catalyst to a support for use in acrolein oxidation reaction. Metallic salt components of the catalyst including molybdate, vanadate and tungstate are dissolved in a liquid to form a suspension of particles of the catalyst. The precipitation of the catalyst particles is controlled by homogenizing the catalyst particles suspended in the liquid. The phase separation between the catalyst particles and the liquid can be substantially slowed down by the homogenization. Then the catalyst is coated on an inert support by applying the suspension of the catalyst particles to the support. In the suspension, the total weight of water is about 0.8 to about 5 times of the total weight of the metallic salts in the catalyst. This method of preparing suspension minimizes the amount of the liquid required to dissolve the metallic salts, which reduces the amount of time and energy to be used in evaporating the liquid from the suspension.Type: GrantFiled: December 22, 2000Date of Patent: October 14, 2003Assignee: LG Chemical, Ltd.Inventors: Won-Ho Lee, Kyung-Hwa Kang, Dong-Hyun Ko, Young-Chang Byun
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Patent number: 6620973Abstract: A catalyst composition for the production of unsaturated aldehydes by the oxidation of the corresponding olefins, and methods of making and using such catalyst compositions. The catalysts of the present invention include compositions of the formula: MoaPdbBicFedX1eX2fX3gOz, wherein X1 is an element selected from Co, Ni, V, Pt, Rh, or mixtures thereof; X2 is an element selected from Al, Ga, Ge, Mn, Nb, Zn, Ag, P, Si, W, or mixtures thereof; X3 is an element selected from K, Mg, Rb, Ca, Sr, Ba, Na, In, or mixtures thereof; a is 1; b is 0<b<0.3; c is 0<c<0.9; d is 0<d<0.9; e is 0<e<0.9; f is 0<f<0.9; g is 0<g<0.3; and z is an integer representing the number of oxygen atoms required to satisfy the valency of Mo, Pd, Bi, Fe, X1, X2, and X3 in the catalyst composition. Using the methods of the present invention, one may effectively oxidize the desired starting materials at relatively high levels of conversion, selectivity, and productivity, and with minimal side products.Type: GrantFiled: October 19, 2001Date of Patent: September 16, 2003Assignee: Saudi Basic Industries CorporationInventors: Khalid Karim, Yajnavalkya Subrai Bhat, Syed Irshad Zaheer, Asad Ahmad Khan
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Publication number: 20030166465Abstract: Novel sorbent systems for the desulfurization of cracked-gasoline and diesel fuels are provided which are comprised of a bimetallic promotor on a particulate support such as that formed of zinc oxide and an inorganic or organic carrier. Such bimetallic promotors are formed of at least two metals of the group consisting of nickel, cobalt, iron, manganese, copper, zinc, molybdenum, tungsten, silver, tin, antimony and vanadium with the valence of same being reduced, preferably to zero. Processes for the production of such sorbents are provided wherein the sorbent is prepared from impregnated particulate supports or admixed to the support composite prior to particulation, drying, and calcination. Further disclosed is the use of such novel sorbents in the desulfurization of cracked-gasoline and diesel fuels whereby there is achieved not only removal of sulfur but also an increase in the olefin retention in the desulfurized product.Type: ApplicationFiled: January 21, 2003Publication date: September 4, 2003Inventor: Gyanesh P. Khare
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Patent number: 6608001Abstract: A method for producing small spherical particles that are especially useful as catalysts and catalyst supports employed in chemical processes is disclosed. According to some embodiments, the method includes impregnating a porous support with a metal or metal oxide and dissolving the support to release spherical particles. In certain embodiments the support that is employed in the method comprises a number of spherical voids which determine the size of the spherical particles, and preferably have micrometer range diameters. One embodiment of an attrition resistant Fischer-Tropsch catalyst comprises a plurality of micrometer size spherical metal and/or metal oxide particles that are prepared according to the above-described method.Type: GrantFiled: September 14, 2001Date of Patent: August 19, 2003Assignee: ConocoPhillips CompanyInventor: Joe D. Allison
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Patent number: 6596897Abstract: A fluidized-bed catalyst for producing acrylonitrile by the ammoxidation of propylene, which comprises a silica carrier and a composite having the following formula: AaCcDdNafFegBihMiMo12Ox wherein A selected from the group consisting of potassium, rubidium, cesium, samarium, thallium and mixtures thereof; C is selected from the group consisting of phosphorus, arsenic, boron, antimony, chromium and mixtures thereof; D is selected from nickel, cobalt or mixtures thereof; M is selected from tungsten, vanadium or mixtures thereof. The catalyst of the present invention particularly suits the use under higher pressure and higher duties, and still maintains very high single-pass yield of acrylonitrile and a high ammonia conversion. This catalyst particularly suits the requirement for existing acrylonitrile plants to raise capacity. For new plants it can also reduce the investment on the catalyst and the pollution.Type: GrantFiled: June 30, 2000Date of Patent: July 22, 2003Assignees: China Petro-Chemical Corporation, Research Institute of Petroleum ProcessingInventors: Xingya Guan, Xin Chen, Lianghua Wu
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Publication number: 20030111391Abstract: A catalyst for removing arsenic from petroleum feedstocks comprising a porous refractory support impregnated with at least 8 wt. % of a Group VIB metal and an amount of Group VIII metal such that the atomic ratio of Group VIII metal to Group VIB metal is between about 1.5 and 2.5. A method of making such catalyst and a process for removing arsenic metals from a petroleum fraction using said catalyst.Type: ApplicationFiled: December 17, 2001Publication date: June 19, 2003Inventor: Opinder Kishan Bhan
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Patent number: 6576584Abstract: A method for producing a hydrotreating catalyst which relates to the production of a solid catalyst composed of a carrier impregnated with an active component, to give a catalyst for hydrotreating hydrocarbon oils, which contains a large quantity of a hydrogenation-active component and uniform, crystalline composite metal compound, and shows high catalytic activity.Type: GrantFiled: August 31, 2000Date of Patent: June 10, 2003Assignee: Tonen CorporationInventors: Masahiko Iijima, Takao Hashimoto, Yoshinobu Okayasu, Takeshi Isoda
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Publication number: 20030102253Abstract: A method of increasing the selective desulfurization of naphtha feed streams that includes: combining a naphtha feed stream with a hydrogen containing gas to form a combined feed stream and reacting the combined feed stream over a monolithic honeycomb catalyst bed containing hydrodesulfurization catalyst components to give a desulfurized naphtha. In conducting such an illustrative embodiment, the percent desulfurization of the naphtha is preferably greater than about 50% and the percent olefin hydrogenation of the naphtha is preferably less than about 50 %. The monolithic honeycomb catalyst bed of one alternative and illustrative embodiment preferably has a channel density of about 25 to 1600 cells per square inch; a channel size from about 0.1 to 10 mm; and a channel wall thickness of about 0.01 to about 2.0 mm. The illustrative method should be carried out such that the octane number (R+M/2) of the naphtha feed stream is reduced by no more than 3.0 at 95% desulfurization and preferably no more than 1.Type: ApplicationFiled: November 28, 2001Publication date: June 5, 2003Inventors: Wei Liu, Tinghong Tao