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| Number | Title | Issue Date |
| 7531707 | Alkylation process using an alkyl halide promoted ionic liquid catalyst A process for the production of a high quality gasoline blending components from refinery process streams by the alkylation of light isoparaffins with olefins using an ionic liquid catalyst is disclosed. The alkylation process comprises contacting a hydrocarbon mixt... | 05/12/2009 |
| 7345213 | Protecting catalytic activity of a SAPO molecular sieve This invention is directed to a method of making an olefin product from an oxygenate feedstock and a method of protecting catalytic activity of a silicoaluminophosphate molecular sieve. The methods comprise providing a silicoaluminophosphate molecular sieve having c... | 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 |
| 7309806 | Maintaining molecular sieve catalytic activity under water vapor conditions The invention is directed to methods for protecting metalloaluminophosphate molecular sieves, particularly silicoaluminophosphate (SAPO) molecular sieves, from loss of catalytic activity due to contact with a gas containing water. The methods of the invention provid... | 12/18/2007 |
| 7230152 | Process for selective aromatics disproportionation with increased conversion An improved process is disclosed for the selective disproportionation of toluene. The process preferably uses a disproportionation catalyst comprising a pentasil type zeolite such as MFI that is bound with aluminum-phosphate. Running the process at a toluene convers... | 06/12/2007 |
| 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 |
| 6921831 | Modified BiMo catalyst and process for use thereof Modified lead/bismuth/molybdate catalysts containing vanadium, copper, or gold have been prepared, and are selective to the corresponding furan compound from the gas phase oxidation of an unsaturated acyclic hydrocarbon such as butadiene. ... | 07/26/2005 |
| 6855855 | Aromatics alkylation The invention provides a process for the alkylation of an aromatics compound with a olefin alkylation agent which comprises contacting the aromatic compound, especially benzene, with the alkylation agent, especially ethylene and/or propylene, in the presence of an o... | 02/15/2005 |
| 6852901 | Process to isomerize 1-butene to 2-butene A process is provided to produce a 2-alkene product from a 1-alkene-containing feed stream. The process comprises contacting the 1-alkene-containing feed stream in a reactor zone to isomerize the 1-alkene-containing feed stream to produce the 2-alkene product. More ... | 02/08/2005 |
| 6627780 | Catalyst composition and processes therefor and therewith A catalyst composition and a process for hydrodealkylating a C9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C6 to C8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises ... | 09/30/2003 |
| 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 |
| 6482999 | Method for improving light olefin selectivity in an oxygenate conversion reaction A method for converting oxygenates to light olefins. The method comprises contacting, in a reactor, a feedstock comprising oxygenates with a molecular sieve catalyst under conditions effective to convert the feedstock to a product including light olefins ... | 11/19/2002 |
| 6437210 | Mazzite supported catalyst A catalyst, method for preparing the catalyst, and method for using the catalyst having improved conversion and/or selectivity in the dehydrogenation of hydrocarbons. The catalyst being prepared by modifying and impregnating a mazzite zeolite. Modificatio... | 08/20/2002 |
| 6429347 | Selective aromatics disproportionation process An improved process is disclosed for the selective disproportionation of toluene. The process preferably uses a disproportionation catalyst comprising MFI bound with alumina phosphate. Running the process at a hydrogen to hydrocarbon ratio between 0.2 to ... | 08/06/2002 |
| 6414208 | Process for producing dimetylnaphthalene and alkylnaphthalene with methallosilicate catalyst A process for producing 2,6-dimethylnaphthalene by subjecting 2,7-dimethylnaphthalene to an isomerization reaction, wherein the isomerization reaction is carried out by the use of a metallosilicate catalyst that comprises a metallosilicate having a main c... | 07/02/2002 |
| 6410812 | Process for recovering boron trifluoride from a catalyst complex In a process for the oligomerization of alpha olefins using a boron trifluoride/alcohol catalyst complex a method for recovering the boron trifluoride from the product stream which comprises lowering the pressure of the product stream to flash off excess ... | 06/25/2002 |
| 6350929 | Process for isomerizing and dehydrogenating using a catalyst activated by sulfurization and passivation with ammonia or precursor thereof Process for isomerization of a feedstock that contains aromatic compounds with eight carbon atoms characterized in that it comprises at least one isomerization stage a) that is carried out in the presence of a catalyst that contains at least one metal of ... | 02/26/2002 |
| 6090990 | Method of making an improved catalyst containing zeolite treated with boron trichloride, the product from such method, and the use thereof in the conversion of hydrocarbons An improved zeolite based catalyst comprising a mixture of a zeolite and a binder treated with boron trichloride and prepared by a novel method including exposing a mixture of a zeolite material and a binder to gaseous boron trichloride under suitable pro... | 07/18/2000 |
| 6046373 | Catalytic conversion of oxygenates to olefins A method for preparing a catalyst and the use of such catalyst for converting an oxygenate feed to olefins wherein the catalyst is modified or treated with the aid of electromagnetic energy.... | 04/04/2000 |
| 5868922 | Analyzer system for strippable hydrocarbon on FCC catalyst A FCC process in which spent catalyst is stripped of hydrocarbon in a stripping zone prior to entering the regenerator. In order to maximize the amount of strippable hydrocarbon removed in the stripping zone with minimal use of stripping gas, a sample of ... | 02/09/1999 |
| 5863417 | Method for analyzing for strippable hydrocarbon on FCC catalyst A FCC process in which spent catalyst is stripped of hydrocarbon in a stripping zone prior to entering the regenerator. In order to maximize the amount of strippable hydrocarbon removed in the stripping zone, a sample of spent catalyst is removed prior to... | 01/26/1999 |
| 5763720 | Transalkylation process for producing aromatic product using a treated zeolite catalyst A heavy aromatics feed is converted to lighter aromatics products, such as benzene, toluene and xylenes by contacting a C9 + aromatics fraction and benzene and/or toluene over a catalyst comprising a zeolite, such as ZSM-12, and a hydrogenation... | 06/09/1998 |
| 5365010 | Method for regenerating Lewis acid-promoted transition alumina catalysts used for isoparaffin alkylation by calcination This invention is a process for the regeneration of a catalyst system component comprising certain transition aluminas promoted with a Lewis acid (preferably BF3) which have been used in the alkylation of isoparaffin with olefins. The process i... | 11/15/1994 |
| 5227552 | Process for hydrogenating alkenes in the presence of alkanes and a heterogeneous catalyst The present invention provides a process for producing a selected paraffin from a reaction mixture containing (i) an acceptor olefin having the carbon backbone structure of said selected paraffin; (ii) a donor paraffin having a carbon backbone structure differ... | 07/13/1993 |
| 4982042 | Process for manufacture of olefin oligomer A process for the manufacture of an olefin oligomer, comprising the steps of polymerizing an olefin monomer in the presence of boron trifluoride and a boron trifluoride-alcohol complex as catalysts, to prepare a first oligomerization product, and then car... | 01/01/1991 |
| 4717781 | Process for the dehydrogenation of dehydrogenatable hydrocarbons Unsaturated hydrocarbons may be prepared by subjecting a dehydrogenatable hydrocarbon to dehydrogenation in the presence of a dehydrogenation catalyst. The effluent stream from this step, comprising unconverted hydrocarbons, dehydrogenated hydrocarbons, h... | 01/05/1988 |
| 4341625 | Method for preparing a catalyst carrier, a catalyst containing the carrier, and a hydrocarbon hydrodesulfurization process using the catalyst A method is provided for preparing a porous catalyst carrier having a pore volume of at least 0.5 cc/g, a content of micropores in which the pore diameter is between 80 and 150 A. which constitutes at least 70% of the pore volume and a content of macropor... | 07/27/1982 |
| 4261810 | Startup procedure for reforming catalysts Process for reforming a hydrocarbon charge under reforming conditions in a reforming zone containing a sulfur-sensitive metal containing reforming catalyst wherein over-cracking of the charge stock and excessive temperature rise in the reforming zone is s... | 04/14/1981 |
| 4169111 | Manufacture of ethylbenzene Benzene is alkylated with ethylene in the presence of a crystalline zeolite catalyst to produce ethylbenzene and polyethylbenzenes. At least a portion of the diethylbenzene fraction is recycled to the alkylation zone while the remainder thereof plus the h... | 09/25/1979 |
| 4148749 | Regeneration of metal promoted platinum group catalyst by superhalogenating at the end of a hydrocarbon conversion cycle Process for regenerating hydrocarbon conversion catalysts, particularly for reforming and isomerization, which comprises superhalogenating the deactivated catalysts, burning the accumulated coke in a controlled manner preferably in a series of steps at di... | 04/10/1979 |
| 4148837 | Regeneration of fused salt complex catalyst in hydrocarbon isomerization A catalyst composition for hydrocarbon conversions such as paraffin isomerization is described which comprises a porous, refractory inorganic oxide carrier having deposited thereon a fused salt complex consisting of aluminum chloride and/or bromide and ma... | 04/10/1979 |
| 4146738 | Process for the telomerization or oligomerization of acyclic conjugated diolefins Acyclic conjugated diolefins of 4-6 carbon atoms can be telomerized or oligomerized by themselves or with H-acidic compounds in the presence of an activated palladium (triarylphosphine) catalyst prepared by oxidatative removal of 1-3.5 molar equivalents o... | 03/27/1979 |
| 4140624 | Method of treating a used platinum group-alumina catalyst with a metal promoter A method for preparing an improved composition of matter whereby a solid catalyst comprising alumina derived from hydrous alumina predominating in alumina trihydrates and at least one platinum group component is used in hydrocarbon conversion service for ... | 02/20/1979 |
| 4136129 | Steam dealkylation Alkylaromatic hydrocarbons are dealkylated in the presence of a catalyst typically containing oxides of nickel, potassium, and aluminum.... | 01/23/1979 |
| 4118431 | Conversion of oxygenated compounds A method and system is described for effecting chemical reactions of aliphatic hetero compounds to gasoline boiling components with crystalline zeolites in the presence of a relatively inert particle material arranged to exercise distribution of exothermi... | 10/03/1978 |
| 4113657 | Alkylation process A process for the alkylation of alkanes with olefins under alkylation conditions with a catalyst having improved long term activity and composed of alumina and chlorine. The improved catalyst is prepared by contacting a catalytically active chlorided alum... | 09/12/1978 |
| 4105704 | Method for preparing and using a soluble metal pentafluoride-hydrogen fluoride catalyst A soluble HF/TaF5 catalyst is prepared in the absence of an organic solvent according to the steps of: (1) contacting tantalum metal with substantially anhydrous liquid HF to form soluble TaF5, the amount of HF being sufficient to maintai... | 08/08/1978 |
| 4101600 | Method of dimerization of alpha-olefins The method of dimerization of alpha-olefins consists in mixing at least one alpha-olefin with a two-component catalyst consisting of organic compounds of titanium, having the general formula Ti (OR)4, and of aluminum, having the general formula... | 07/18/1978 |
| 4101592 | Catalytic hydrogenation Monoolefins are hydrogenated in the presence of a catalyst comprising at least one carbide, nitride, or silicide of a Group VIII, Group VIB, or Group VIIB metal.... | 07/18/1978 |
| 4079092 | Hydroprocessing of aromatics to make cycloparaffins A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite comprising a porous carrier material containing, on an elemental basis, about 0.01 to about 2 wt. % platinum or palladium, about 0.05 t... | 03/14/1978 |
