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| Number | Title | Issue Date |
| 8153852 | Process of using germanium zeolite catalyst for alkane aromatization This invention is for a catalyst for conversion of alkanes having two to six carbon atoms per molecule to aromatics. The catalyst is a MFI zeolite with a crystallite size of less than 15 microns with, in addition to silicon and aluminum, germanium as a framework ele... | 04/10/2012 |
| 8097763 | Process for production of aromatic compound An aromatic compound, particularly benzene, is stably produced in the presence of a catalyst from a lower hydrocarbon having 2 or more carbon atoms, particularly from an ethane-containing gas composition such as ethane gas and natural gas. Disclosed is a process for... | 01/17/2012 |
| 7982080 | Production of aromatics from aliphatics In a process for converting a low carbon number aliphatic hydrocarbon to higher hydrocarbons including aromatic hydrocarbons, a feed containing the aliphatic hydrocarbon is contacted with a dehydrocyclization catalyst under conditions effective to convert the alipha... | 07/19/2011 |
| 7935856 | Preparation method of 1,5-dimethyltetralin using dealuminated zeolite beta catalyst The present invention relates to a method for preparing 1,5-dimethyltetralin using a dealuminated zeolite beta catalyst. The preparation method of 1,5-dimethyltetralin according to the present invention has the effects of not only showing high conversion and ... | 05/03/2011 |
| 7868217 | Extending the life of an aromatization catalyst A method of extending the life of an aromatization catalyst comprising identifying a rapid deactivation threshold (RDT) of the catalyst, and oxidizing the catalyst prior to reaching the RDT. A method of aromatizing a hydrocarbon comprising identifying a rapid deacti... | 01/11/2011 |
| 7745675 | Regeneration of platinum-germanium zeolite catalyst This invention relates to a process for regeneration of a zeolite catalyst, specifically an aluminosilicate zeolite with germanium substituted in the framework for silicon and with platinum deposited on the zeolite. The catalyst may be used in a process for aromatiz... | 06/29/2010 |
| 7439409 | Process for para-xylene production from light aliphatics Low-value mixed butanes are processed to obtain a high yield of high-purity para-xylene. Processing steps may comprise fractionation to recover isobutane, dehydrogenation of the isobutane to isobutene, dimerization of the isobutene to obtain C8 iso-olefin... | 10/21/2008 |
| 7355088 | Process for producing benzene, ethylene and synthesis gas Process for producing benzene, ethylene and synthesis gas, comprising the steps of: i) introducing a starting gas flow comprising methane and carbon dioxide into a reactor; ii) oxidizing the methane in the reactor at certain reactor conditions optionally using a fir... | 04/08/2008 |
| 7285694 | Thermobaric molecular fractionation Systems and methods for converting organic material into commercially viable products, such as burnable low sulfur engine fuels. The system of the present invention includes an anaerobic stripping reactor for processing organic materials into a bio-softened slurry, ... | 10/23/2007 |
| 7186871 | Process for alkane aromatization using platinum-zeolite catalyst Aromatization of alkanes having one to four carbon atoms per molecule to aromatics, such as benzene, toluene and xylenes (BTX), uses a catalyst of a crystalline zeolite on which platinum has been deposited, specifically a platinum-containing ZSM-5. A byproduct of th... | 03/06/2007 |
| 7186872 | Catalyst for aromatization of alkanes, process of making and process of using thereof A catalyst of a gallium zeolite on which platinum (Pt/Ga-ZSM-5) has been deposited may be used for aromatization of alkanes having two to six carbon atoms per molecule, such as ethane, propane, butane, etc., to aromatics, such as benzene, toluene and xylenes (BTX). ... | 03/06/2007 |
| 7164052 | Catalytic composition for the aromatization of hydrocarbons Aromatic hydrocarbon compounds are produced by a process of contacting one or more aliphatic hydrocarbons containing from 3 to 6 carbon atoms with a catalytic composition comprising (i) gallium, (ii) at least one lanthanide element, and (iii) a zeolite selected from... | 01/16/2007 |
| 7138556 | Method for producing aromatic hydrocarbons The method comprises separation of contacting products into liquid and gaseous products, complete burning of gaseous products in the presence of the catalyst of complete oxidation of light hydrocarbons and addition of carbon dioxide and water vapor mixture formed du... | 11/21/2006 |
| 7128827 | Integrated catalytic cracking and steam pyrolysis process for olefins Integration of gas oil and light olefin catalytic cracking zones with a pyrolytic cracking zone to maximize efficient production of petrochemicals is disclosed. Integration of the units in parallel allows production of an overall product stream with maximum ethylene... | 10/31/2006 |
| 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 |
| 7067708 | Process for the preparation of p-xylene The present invention relates to a process for the preparation of para-xylene from trimethylpentane. ... | 06/27/2006 |
| 7057084 | Process for the removal of higher hydrocarbons from natural gas Process for the removal of higher hydrocarbons contained in natural gas further containing sulphur compounds by simultaneous conversion of the hydrocarbons to aromatic compounds and methane in presence of a catalyst comprising a crystalline alumino silicate having i... | 06/06/2006 |
| 7053258 | Process for selectively producing aromatic compounds A process is disclosed for selectively producing one or more aromatic compounds selected from benzene, toluene, para-xylene, meta-xylene, ortho-xylene, ethylbenzene and mixtures thereof from a feed containing C6–C20 hydrocarbons and/or C... | 05/30/2006 |
| 7019184 | Non-oxidative conversion of gas to liquids The present invention provides a process for natural gas in the form, e.g., of stranded gas or associated gas to transportable liquids. More particularly, the present invention provides a process in which the gas is non-oxidatively converted to aromatic liquid, pref... | 03/28/2006 |
| 7011810 | Crystalline molecular sieves MFS structure type zeolite manufacture is facilitated by using a second organic molecule in addition to the usual hexaethylpentane diammonium salt. ... | 03/14/2006 |
| 6946583 | Reforming process for manufacture of para-xylene A process for selectively producing para-xylene from a feedstock enriched in C8 isoalkanes and/or isoalkenes is disclosed. The feed is contacted with Group VIII metal loaded molecular sieve catalyst of low acidity under dehydrocyclization conditions where... | 09/20/2005 |
| 6858129 | Tailored zeolite bound zeolite catalysts 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 zeolite bo... | 02/22/2005 |
| 6831203 | Metal-containing zeolite catalyst, preparation thereof and use for hydrocarbon conversion There is provided a zeolite bound zeolite catalyst which does not contain significant amounts of non-zeolitic binder and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The catalyst comprises first zeolite, crystals, a binder comp... | 12/14/2004 |
| 6797850 | Catalytic dehydrogenation processes and chromium catalysts for use therein A chromium catalyst is disclosed for use in dehydrogenation and dehydrocyclization processes. ... | 09/28/2004 |
| 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 |
| 6784332 | Processes employing hydrocarbon conversion catalyst A hydrocarbon conversion process comprising contacting a hydrocarbon stream such as, for example, gasoline, with a catalyst composition to effect the conversion of the hydrocarbon to olefins and C6 to C8 aromatic hydrocarbons such as toluene an... | 08/31/2004 |
| 6784333 | Catalyst for aromatization of alkanes, process of making and using thereof A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene a... | 08/31/2004 |
| 6657096 | Dehydrocyclodimerization process with catalyst reactivation 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... | 12/02/2003 |
| 6653518 | Reforming process for manufacture of para-xylene A process for selectively producing para-xylene from a feedstock enriched in C8 isoalkanes and/or isoalkenes is disclosed. The feed is contacted with Group VIII metal loaded molecular sieve catalyst of low acidity under dehydrocyclization condi... | 11/25/2003 |
| 6600081 | Process for the preparation of p-xylene The present invention relates to a process for the preparation of para-xylene from trimethylpentane.... | 07/29/2003 |
| 6593503 | Process for making aromatic hydrocarbons using an acid treated zeolite A catalyst composition and a process for converting a hydrocarbon stream such as, for example, gasoline to C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition includes an alumina, a sili... | 07/15/2003 |
| 6552243 | Catalyst and process for aromatic hydrocarbons production from methane A molybdenum-loaded crystalline aluminosilicate molecular sieve that exhibits the MFI crystal structure and has a silica-to-alumina ratio of about 50:1 is useful for aromatizing a hydrocarbon feed stream. The crystalline aluminosilicate preferably has an ... | 04/22/2003 |
| 6548725 | Process for manufacturing olefins A catalyst and an improved process for producing olefins by catalytic naphtha cracking are described. The process provides relatively higher yields over a commercially important range of naphtha conversion, while providing about the same or lower yields o... | 04/15/2003 |
| 6518470 | Halogen-containing catalyst and process for the preparation thereof The present invention is directed to a halogen-containing catalyst which contains one or more halogen components and in which the halogen amount distribution in the catalyst is uniform, and a process for preparing a halogen-containing catalyst which compr... | 02/11/2003 |
| 6417421 | Hydrocarbon conversion catalyst composition and process therefor and therewith A catalyst composition, a process for producing the composition, and a hydrotreating process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylene... | 07/09/2002 |
| 6235955 | Hydrocarbon conversion processess A composition, a process for producing the composition, and a hydrocarbon conversion process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylene... | 05/22/2001 |
| 6218590 | Zeolite material, a method of making such improved zeolite material and the use thereof in the conversion of non-aromatic hydrocarbons to aromatics and light olefins A novel high stability catalyst composition comprising a mixture of zeolite and zinc spinel that has been treated with a reducing gas under high temperature conditions, a method of making such high stability catalyst, and the use thereof for converting pa... | 04/17/2001 |
| 6207042 | Reforming using a bound halided zeolite catalyst A catalytic reforming process comprising the catalytic conversion of hydrocarbons to aromatics, said process comprising treating a halided zeolite catalyst (hiz-cat) containing a Group VIII metal at commercial startup conditions and then reforming hydroca... | 03/27/2001 |
| 6198012 | Method for converting n-butane to butenes and BTX A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene... | 03/06/2001 |
| 6190539 | Reforming using a bound halided zeolite catalyst A catalytic reforming process comprising the catalytic conversion of hydrocarbons to aromatics, said process comprising treating a halided zeolite catalyst (hiz-cat) containing a Group VIII metal at commercial startup conditions and then reforming hydroca... | 02/20/2001 |
