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| Number | Title | Issue Date |
| 7419931 | Catalyst comprising a 10MR zeolite and a 12MR zeolite, and its use in transalkylation of alkylaromatic hydrocarbons 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 ... | 09/02/2008 |
| 7393805 | Catalyst treatment useful for aromatics conversion process 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-b... | 07/01/2008 |
| 7381674 | Iridium and germanium-containing catalysis and alkylaromatic transalkylation processes using such catalysts Transalkylation catalysts comprising acidic molecular sieve, iridium and germanium have good activities and attenuate aromatic ring saturation and lights co-production where high atomic ratios of germanium to iridium are present. ... | 06/03/2008 |
| 7381677 | Ethylbenzene conversion and xylene isomerization processes and catalysts therefor 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 ... | 06/03/2008 |
| 7381676 | Catalyst composition and its use thereof in aromatics alkylation 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 oxi... | 06/03/2008 |
| 7378365 | Synergistic rhenium and germanium-containing catalysts potentiated with tin and alkylaromatic transalkylation processes using such catalysts Transalkylation catalysts comprising acidic molecular sieve, rhenium, tin and germanium have good activities and attenuate aromatic ring saturation and lights co-production. ... | 05/27/2008 |
| 7378364 | Palladium and germanium-containing catalysts and alkylaromatic transalkylation processes using such catalysts 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. ... | 05/27/2008 |
| 7332454 | Oxidation catalyst on a substrate utilized for the purification of exhaust gases An oxidation catalyst deposited on a filter substrate for the removal of CO, hydrocarbons, and particulate matter, such as soot, from an exhaust stream wherein the oxidation catalyst is formed from a platinum group metal supported on a refractory oxide, tin oxide, a... | 02/19/2008 |
| 7332148 | Hydrothermally stable metal promoted zeolite beta for NOreduction A stabilized metal promoted aluminosilicate zeolite, useful in the selective catalytic reduction of nitrogen oxides with ammonia, having a silica to alumina mole ratio of at least 8 and less than 30 and an FT-IR absorption peak at 3781 plus or minus 2 cm−1 | 02/19/2008 |
| 7304011 | Compositions and processes for reducing NOemissions during fluid catalytic cracking Compositions for reduction of NOx generated during a catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise a fluid catalytic cracking catalyst composition, preferably containing a Y-type zeoli... | 12/04/2007 |
| 7273828 | Catalyst treatment useful for aromatics conversion process 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-b... | 09/25/2007 |
| 7265073 | Exhaust gas purifying catalyst and process for purifying exhaust gas An exhaust gas purifying catalyst formed by having a first rhodium-containing catalyst layer, a second zeolite-containing catalyst layer, and a third palladium-containing catalyst layer superposed sequentially on a carrier, and a process for purifying the exhaust ga... | 09/04/2007 |
| 7235507 | Catalyst for purifying diesel engine exhaust emissions A diesel oxidation catalyst comprising a honeycomb substrate washcoated with a mixture of clay, a refractory oxide and a zeolite is disclosed. The washcoated substrate is subsequently deposited with a precious metal catalyst and a sulfur oxidation suppressant. In a ... | 06/26/2007 |
| 7220885 | Catalyst treatment useful for aromatics conversion process 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-b... | 05/22/2007 |
| 7220692 | Catalyst for selective NOreduction using hydrocarbons A two phase catalyst is disclosed with one or more transition metals such as Cu, Co, Fe, Ag and Mo supported on a molecular sieve having a pore size not greater than 8 Å along with a stabilizing oxide of one or more of the oxides of Zr, Mo, V, Nb or the rare earth... | 05/22/2007 |
| 7202189 | Shaped catalysts for transalkylation of aromatics for enhanced xylenes production A catalyst, a process for using the catalyst whereby the catalyst effectively transalkylates C7, C9, and C10 aromatics to C8 aromatics are disclosed. The catalyst comprises a support such as mordenite plus a metal componen... | 04/10/2007 |
| 7109141 | Alkylated aromatic compositions, zeolite catalyst compositions and process for making the same The present invention is directed to novel alkylated aromatic compositions, zeolite catalyst compositions and processes for making the same. The catalyst compositions comprise zeolite Y and mordenite zeolite having a controlled macropore structure. The present inven... | 09/19/2006 |
| 7098353 | Metal ion exchanged solid materials as catalysts for the skeletal isomerization of fatty acids and alkyl esters thereof The present invention generally relates to a process for the skeletal isomerization of unsaturated linear fatty acids and/or alkyl esters thereof to their branched counterparts. Said skeletal isomerization process comprises contacting said unsaturated linear fatty a... | 08/29/2006 |
| 7094722 | NOcatalyst and method of suppressing sulfate formation in an exhaust purification system The activity and durability of a zeolite lean-bum NOx catalyst can be increased by loading metal cations on the outer surface of the zeolite. However, the metal loadings can also oxidize sulfur dioxide to cause sulfate formation in the exhaust. The present invention... | 08/22/2006 |
| 7060644 | Aromatic alkylation catalyst and method A catalyst for use in aromatic alkylation, such as toluene alkylation with methanol, is comprised of a zeolite with pore size from about 5.0 to about 7.0 Å containing a hydrogenating metal. The catalyst may be used in preparing an alkyl aromatic product by providi... | 06/13/2006 |
| 7060233 | Process for the simultaneous removal of sulfur and mercury A process for removing hydrogen sulfide, other sulfur-containing compounds and/or sulfur and mercury from a gas stream contaminated with mercury, hydrogen sulfide or both. The method comprises the step of selective oxidation of hydrogen sulfide (H2S) in a... | 06/13/2006 |
| 7041774 | Functionalized zeolite compositions and methods for their preparation and use Disclosed herein are zeolite compositions comprising structural units of the formulae: wherein “B” and “C” are spacer groups comprising C2 to C20 hydrocarbyl groups; and R1 | 05/09/2006 |
| 7033969 | Porous material, method and arrangement for catalytic conversion of exhaust gases Porous materials are disclosed for use in the catalytic conversion of exhaust gases comprising a carrier including a first porous structure, an oxidation catalyst capable of catalyzing the oxidation of NO to NO2 in the presence of oxygen and catalyzing th... | 04/25/2006 |
| 6964935 | Mordenite zeolite alkylation catalysts The present invention is directed to a mordenite zeolite catalyst having a controlled macropore structure. The present invention is also directed to a mordenite zeolite catalyst composite and a process for preparing the catalyst composite. The catalyst composite exh... | 11/15/2005 |
| 6958305 | Zeolite catalyst and use for hydrocarbon conversion There is provided a zeolite bound zeolite catalyst which can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises a first zeolite and a binder com... | 10/25/2005 |
| 6914026 | Hydrothermally stable metal promoted zeolite beta for NOx reduction The present invention is directed to an iron-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the iron-promoted zeolite beta is treated so as to provide increased amounts of the iron promoter in the ... | 07/05/2005 |
| 6864203 | Aromatic conversion processes and zeolite catalyst useful therein A process is provided for the alkylation, transalkylation, or isomerization of aromatic hydrocarbons. The processes comprises contacting aromatic hydrocarbons under conversion conditions with a zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst compr... | 03/08/2005 |
| 6858556 | Stabilized dual zeolite single particle catalyst composition and a process thereof A process for the preparation of a stabilized dual zeolite catalyst-comprising two types of zeolites, a low silica molecular sieve and a stabilized high silica zeolite is disclosed. The catalyst is useful for cracking heavier hydrocarbons into lighter useful product... | 02/22/2005 |
| 6858555 | Process for making a catalyst for cracking heavy oil A catalyst composition for the cracking of heavy oil, which has high cracking activity for heavy components in the heavy oil and features reduced deposition of coke. The catalyst composition is comprised of a zeolite, a mixed metal oxide, clay and a metal oxide, and... | 02/22/2005 |
| 6831184 | Skeletal isomerization of fatty acids The present invention relates to a process for the skeletal isomerization of unsaturated linear fatty acids to branched fatty acids which comprises contacting said unsaturated linear fatty acids with at least one large pore zeolite catalyst wherein said at least one... | 12/14/2004 |
| 6812181 | Coated zeolite catalysts and use for hydrocarbon conversion There is provided a coated zeolite catalyst in which the accessibility of the acid sites on the external surfaces of the zeolite is controlled and a process for converting hydrocarbons utilizing the coated zeolite catalyst. The zeolite catalyst comprises core crysta... | 11/02/2004 |
| 6809055 | Zeolites and molecular sieves and the use thereof An improved zeolite having a high number of strong acid sites wherein said zeolite has an AAI of at least 1.0. In a preferred embodiment, such zeolite is produced by controlling conditions after production of the crystalline structure such that loss of tetrahedral a... | 10/26/2004 |
| 6787023 | Metal-containing macrostructures of porous inorganic oxide, preparation thereof, and use There is provided a catalyst containing porous macrostructures comprised of: (a) a three-dimensional network of particles of porous inorganic material (e.g., zeolites); and, (b) at least one metal (e.g., a catalytically active metal). The particles of the at least o... | 09/07/2004 |
| 6770251 | Exhaust gas purifying catalyst A catalyst is provided that is capable of efficiently purifying NOx contained in a lean atmosphere containing moisture. The exhaust gas purifying catalyst contains a composition obtained by physically mixing a composite oxide containing zirconium and mang... | 08/03/2004 |
| 6710003 | Process for preparing attrition resistant zeolitic layered catalyst composition A layered catalyst composition is disclosed where the composition is prepared by bonding an outer layer comprising a bound zeolite (e.g. zeolite beta) to an inner core material (e.g. cordierite). The use of an organic bonding agent in the catalyst preparation proced... | 03/23/2004 |
| 6699811 | Tailored zeolite bound zeolite catalyst and its use for hydrocarbon conversion There is provided a zeolite bound zeolite catalyst which does not contain significant amount of non-zeolitic binder and can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The... | 03/02/2004 |
| 6692640 | Mordenite zeolite membrane and method for producing the same A mordenite (MOR) zeolite membrane is formed on a porous substrate and has crystals that are substantially oriented in a specific crystalline direction. A method for producing the mordenite (MOR) zeolite membrane includes the steps of: immersing a porous ... | 02/17/2004 |
| 6689709 | Hydrothermally stable metal promoted zeolite beta for NOx reduction The present invention is directed to a metal-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the zeolite beta is pre-treated so as to provide the zeolite with improved hydrothermal stabil... | 02/10/2004 |
| 6677264 | Catalyst for cleaning up the exhaust gases of a diesel engine A catalyst for purifying exhaust gases of a diesel engine. The catalyst contains two functional layers superimposed on an inert supporting body, whereby the first layer, which is situated directly on the supporting body, has a nitrogen oxide storage funct... | 01/13/2004 |
| 6632768 | Adsorbent for HC in exhaust gas, and process for producing the same An adsorbent for HC in an exhaust gas is an agglomerate of double-structure particles, each of which includes an HC-adsorbing zeolite core, and a ceramic coat wrapping the zeolite core and having a plurality of through-pores communicating with a plurality... | 10/14/2003 |
