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| Number | Title | Issue Date |
| 8158547 | Absorbent An absorbent of ZSM-5 zeolite ion-exchanged with copper ion, characterized in that at least 60% or more of the copper sites in the copper ion-exchanged ZSM-5 zeolite are copper (I) sites and preferably at least 70% or more of the copper (I) sites are three-oxygen-co... | 04/17/2012 |
| 7807598 | Mesostructured material with a high aluminum content A mesostructured material that consists of at least two elementary spherical particles, each of said particles comprising a mesostructured matrix based on aluminum oxide and having a pore size of between 1.5 and 30 nm, an aluminum oxide content that represents more ... | 10/05/2010 |
| 7442367 | Production method for zeolite shaped body and production method for zeolite layered composite 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 ... | 10/28/2008 |
| 7435699 | Heterogeneous adsorbent and the use for diffusional separation methods 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 sel... | 10/14/2008 |
| 7422732 | Synthesis of amines using molecular sieve SSZ-74 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. ... | 09/09/2008 |
| 7419930 | Catalytic composition for the aromatization of hydrocarbons 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 ... | 09/02/2008 |
| 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 |
| 7417004 | Catalyst for dimethyl ether synthesis and its preparation methods 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 ... | 08/26/2008 |
| 7393804 | Exhaust gas purifying catalyst and process for purification of exhaust gas An exhaust gas purifying catalyst has a catalytic component including copper, ZSM-5, and β 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. | 07/01/2008 |
| 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 |
| 7387978 | Selective para-xylene production via methylation of toluene with methanol in the presence of modified HZSM-5 catalyst 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... | 06/17/2008 |
| 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 |
| 7375048 | ZSM-5 additive 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 co... | 05/20/2008 |
| 7375047 | Ethylbenzene conversion and xylene isomerization processes and catalysts therefor 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 ... | 05/20/2008 |
| 7368410 | Zeolite catalyst and method of preparing and use of zeolite catalyst 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... | 05/06/2008 |
| 7361794 | Zone reactor In a method of converting alkanes to their corresponding alcohols and ethers a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal bromide in the first zone to provi... | 04/22/2008 |
| 7357904 | Reduction of oxides of nitrogen in a gas stream using molecular sieve SSZ-74 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 f... | 04/15/2008 |
| 7344697 | Microporous crystalline zeolite material, zeolite ITQ-28, production method thereof and use of same The invention relates to a microporous crystalline zeolite material, zeolite ITQ-28, the production method thereof and the use of same. More specifically, the invention relates to a microporous crystalline zeolite material, ITQ-28, which, in the calcined state and i... | 03/18/2008 |
| 7326818 | Selectivation of molecular sieve catalysts and use therof in hydrocarbon conversion In a process for preparing a selectivated catalyst composition useful in the disproportionation of toluene, a catalyst comprising an acidic molecular sieve is contacted with a boron compound at a temperature in excess of 500° C.; and the resultant catalyst is then ... | 02/05/2008 |
| 7323430 | Selective para-xylene production via methylation of toluene with methanol in the presence of modified HZSM-5 catalyst We disclose a method for preparing a catalyst for converting toluene to xylenes. As an example, in one embodiment the method can include: (i) binding HZSM-5 to silica, to form silica-bound HZSM-5; (ii) silylating the silica-bound HZSM-5, to form silylated silica-bou... | 01/29/2008 |
| 7307034 | Alumina guard bed for aromatics transalkylation process 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,... | 12/11/2007 |
| 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 |
| 7300900 | Catalyst comprising at least one zeolite chosen from ZBM-30, SM-48 EU-2 and EU-11 and at least one Y zeolite and process of hydroconversion of hydrocarbon charges using such a catalyst A hydrocracking catalyst containing at least one matrix, at least one zeolite chosen from the group formed by the zeolites ZBM-30, ZSM-48, EU-2, and EU-11, at least one Y zeolite, at least one hydro-dehydrogenating metal chosen from the group formed by the metals fr... | 11/27/2007 |
| 7273827 | Molecular sieve catalyst composition, its production and use in conversion processes The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a catalyst composition... | 09/25/2007 |
| 7271117 | Epoxidation catalyst Noble metal-containing titanium or vanadium zeolite catalysts are prepared by adding a noble metal source to a titanium or vanadium zeolite that contains templating agent used in the preparation of the zeolite, and then removing the templating agent to form the nobl... | 09/18/2007 |
| 7271118 | Xylenes isomerization catalyst system and use thereof A catalyst system that exhibits a ratio of ethylene saturation to aromatics ring saturation of greater than 3,500. The catalyst system comprises two components and each component comprises a crystalline molecular sieve having a Constraint Index of from about 1 to ab... | 09/18/2007 |
| 7268094 | Mixed matrix membrane with super water washed silica containing molecular sieves and methods for making and using the same The present invention provides a method for preparing silica containing molecular sieves which may be mixed with an organic polymer to create a mixed matrix membrane. Further, this invention includes a method of making such a mixed matrix membrane and the membrane i... | 09/11/2007 |
| 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 |
| 7262147 | Method for preparing dehydrocyclodimerization catalyst This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant pr... | 08/28/2007 |
| 7259286 | Attrition resistant bulk iron catalysts and processes for preparing and using same An attrition resistant precipitated bulk iron catalyst is prepared from iron oxide precursor and a binder by spray drying. The catalysts are preferably used in carbon monoxide hydrogenation processes such as Fischer-Tropsch synthesis. These catalysts are suitable fo... | 08/21/2007 |
| 7253331 | Molecular sieve catalyst composition, its making and use in conversion processes The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a conversion process f... | 08/07/2007 |
| 7252876 | Laminated zeolite composite and method for production thereof A laminated zeolite composite is provided, including a MFI membrane constituted by a MFI type zeolite having a SiO2/Al2O3 (molar ratio) of 40 to 100, and a porous substrate constituted by a MFI type zeolite having a SiO2/A... | 08/07/2007 |
| 7244409 | Process for producing synthetic zeolites with MFI structure A process is described for producing synthetic zeolites useful as catalysts with a MFI structure, a Si/Al atomic ratio from about 8 to 45 to 1 and very small primary crystallites. A Si source, an Al source and an organic template are reacted with one another under h... | 07/17/2007 |
| 7238636 | High temperature calcination of selectivated molecular sieve catalysts for activity and diffusional modification A method is disclosed for modifying a catalytic molecular sieve for shape-selective hydrocarbon conversions comprises: a) selectivating said catalytic molecular sieve by contacting with a silicon-containing selectivating agent; and... | 07/03/2007 |
| 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 |
| 7232769 | Method of forming amorphous silica-based coating film with low dielectric constant and thus obtained silica-based coating film The present invention relates to an amorphous silica-based coating film with a low specific dielectric constant of 2.5 or below and the Young's modulus of 6.0 GPa or more and having excellent hydrophobic property, and to a method of forming the same. A liquid compos... | 06/19/2007 |
| 7230150 | Zone reactor In a method of converting alkanes to their corresponding alcohols, ethers, olefins, and other hydrocarbons, a vessel comprises a hollow, unsegregated interior defined first, second, and third zones. In a first embodiment of the invention oxygen reacts with metal hal... | 06/12/2007 |
| 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 |
| 7214844 | Molecular sieve catalyst compositions, its making and use in conversion processes The invention relates to a molecular sieve catalyst composition, to a method of making or forming the molecular sieve catalyst composition, and to a conversion process using the catalyst composition. In particular, the invention is directed to a making a molecular s... | 05/08/2007 |
| 7214637 | Process for the preparation of MFI-type zeolitic catalysts The present invention relates to a process for the preparation of zeolitic catalysts of the MFI type in spheroidal form. The process consists in emulsifying and consolidating in paraffinic hydrocarbons, in the presence of a non-ionic surface-active agent or a... | 05/08/2007 |
