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| Number | Title | Issue Date |
| 7384538 | Catalyst combination for the hydroisomerization of waxy feeds at low pressure A process for the hydroisomerization of a waxy feed having a major portion boiling above 650° F. to produce a lubricating base oil having a lower pour point, said process comprising (a) passing the waxy feed along with hydrogen gas through a hydroisomerization zone... | 06/10/2008 |
| 7371316 | Production of lower molecular weight hydrocarbons A catalytic composition useful for cracking and reducing the viscosity of heavy hydrocarbons. The catalytic composition comprises Portland cement, a volcanic ash component, titanium dioxide, and a transition metal salt. Optionally, a hydrogen source is added to the ... | 05/13/2008 |
| 7326819 | High-activity isomerization catalyst and process 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 sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of... | 02/05/2008 |
| 7294420 | Production of hydrogen A method of producing hydrogen for a fuel cell from a hydrocarbon fuel composition, by providing a hydrocarbon fuel composition, which is obtained by contacting a liquid hydrocarbon feed comprising an alkylating agent with an acidic catalyst, under conditions effect... | 11/13/2007 |
| 7022889 | Isomerization process using novel catalyst A process for the isomerization of a feedstream comprising C5–C6 hydrocarbons where the process involves charging hydrogen and a feedstream comprising at least normal C5–C6 hydrocarbons into an isomerization zone and c... | 04/04/2006 |
| 7015175 | High-activity isomerization catalyst and process 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 sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of... | 03/21/2006 |
| 6979396 | Combination reforming and isomerization process A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is c... | 12/27/2005 |
| 6927188 | High-activity isomerization catalyst and process 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 sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of... | 08/09/2005 |
| 6573417 | Fractionation of paraffin isomerization process effluent The fractional distillation performed as part of the isomerization of C5 -C6 paraffins is heat integrated. A portion of a sidedraw recycle stream is employed to cool the feed to a deisohexanizer column and then returned to a lower po... | 06/03/2003 |
| 6320089 | Paraffin-isomerization catalyst and process An improved catalyst is disclosed for the conversion of hydrocarbons. The catalyst comprises an alumina support, a Friedel-Crafts metal halide, and a platinum-group metal component, wherein the support comprises primarily eta alumina and a small amount of... | 11/20/2001 |
| 6118036 | Alkane isomerization using reversible flow A process to isomerize at least one normal or mono-methyl-branched alkane to form at least one multi-methyl-branched alkane has been developed. At least one normal or mono-methyl-branched is introduced to a reaction zone to form at least one multi-methyl-... | 09/12/2000 |
| 5770783 | Alkane isomerization using reversible flow reactive chromatography A process to isomerize at least one normal or mono-methyl-branched alkane containing from about 6 to about 8 carbon atoms to form at least one multi-methyl-branched alkane has been developed. The normal or mono-methyl-branched alkane is introduced to a re... | 06/23/1998 |
| 5763730 | Process for alkane isomerization using reactive chromatography A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may b... | 06/09/1998 |
| 5744683 | Process for continuous reaction and deparation using reactive chromatography A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may b... | 04/28/1998 |
| 5744684 | Process for alkane isomerization using reactive chromatography and reactive desorbent A process for isomerizing a mixture of alkanes containing pentanes and at least one alkane having from 6 to about 8 carbon atoms and no more than one methyl branch has been developed. The process includes: 1) separating the mixture in a first separation z... | 04/28/1998 |
| 5672264 | Methods of using stable supergallery pillared clay compositions A class of highly stable supergallery pillared clay compositions that have a basal spacing up to 55 Å corresponding a gallery height of 35 Å for samples dried at room temperature and a basal spacing up to 45 Å corresponding a gallery height of 255 Å f... | 09/30/1997 |
| 5639933 | Isomerization catalyst and use thereof in alkane/cycloalkane isomerization A catalyst composition is prepared by a method comprising impregnating alumina with at least one platinum compound, followed by calcining, reducing treatment, and heating with gaseous aluminum chloride and gaseous titanium tetrachloride. The thus-prepared... | 06/17/1997 |
| 5602292 | Catalyst for the hydroisomerization of long-chain n-paraffins and process for preparing it Disclosed is an active catalyst in the hydroisomerization of waxes (paraffins), which catalyst is constituted by a carrier of acidic nature, of silica-alumina gel, and one or more metals belonging to Group VIIIA. Also a process for preparing said catalyst is d... | 02/11/1997 |
| 5557029 | Isomerization of saturated hydrocarbons In a process for isomerizing saturated C4- C10 hydrocarbons (preferably n-pentane) in the presence of a platinum/zeolite catalyst, wherein sulfur compounds are present in the feed as impurities and cause catalyst deactivating, at lea... | 09/17/1996 |
| 5530173 | Process for alkane isomerization using reactive chromatography and reactive desorbent A process for isomerizing a mixture of alkanes containing pentanes and at least one alkane having from 6 to about 8 carbon atoms and no more than one methyl branch has been developed. The process includes: 1) separating the mixture in a first separation z... | 06/25/1996 |
| 5530172 | Process for alkane isomerization using reactive chromatography A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may b... | 06/25/1996 |
| 5245103 | Isomerization processes and catalysts therefor In one embodiment, C4 -C10 alkanes and/or C5 -C10 cycloalkanes are isomerized in the presence of a catalyst which has been prepared by heating AlCl3, at least one aluminum sulfate-containing support m... | 09/14/1993 |
| 5004859 | Catalyst for the isomerization of alkanes An improved catalyst particle is disclosed for the conversion of hydrocarbons which comprises a refractory inorganic-oxide support, a Friedel-Crafts metal halide, and a surface-layer platinum-group metal component, wherein the concentration of platinum-gr... | 04/02/1991 |
| 4929800 | Hydrocarbon conversion and polymerization catalyst and method of making and using same Hydrocarbon conversion processes are disclosed using a catalyst prepared by a method comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.... | 05/29/1990 |
| 4719190 | Hydrocarbon conversion and polymerization catalyst and method of making and using same Method of preparing a hydrocarbon conversion and polymerization catalyst comprising reacting an adsorbent containing surface hydroxyl groups with a Lewis acid in a halogenated organic solvent.... | 01/12/1988 |
| 4327240 | Hydrocarbon isomerization catalyst and process Isomerizable hydrocarbons are isomerized using a catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium carbonyl component with a porous carrier material containing a uniform dispersion of catalytically eff... | 04/27/1982 |
| 4283585 | Hydrocarbon isomerization catalysts and procedures for the preparation and use thereof Hydrocarbon isomerization catalysts comprising typically refractory mineral oxide carrier such as alumina and a halogen element present in combined form, together with, in the free or combined state: A platinum-group metal; second element from the group consis... | 08/11/1981 |
| 4207426 | Alkylaromatic isomerization using platinum group metal on extruded alumina support Isomerizable hydrocarbons including paraffins, cycloparaffins, olefins and alkyl aromatics are isomerized by contacting the hydrocarbon at isomerization conditions with a catalytic composite comprising a platinum group metal on an alpha-alumina monohydrat... | 06/10/1980 |
| 4201696 | Hydrocarbon isomerization catalysts and procedures for the preparation thereof Hydrocarbon isomerization catalysts comprising typically refractory mineral oxide carrier such as alumina and a halogen element present in combined form, together with, in the free or combined state: a platinum-group metal; second element from the group consis... | 05/06/1980 |
| 4179581 | Paraffinic hydrocarbon isomerization process Isomerizable hydrocarbons including paraffins, cycloparaffins, olefins and alkyl aromatics are isomerized by contacting the hydrocarbon at isomerization conditions with a catalytic composite comprising a platinum group metal on an alpha-alumina monohydrat... | 12/18/1979 |
| 4075259 | Saturated hydrocarbon isomerization utilizing a catalyst of platinum group metal, cobalt, tin and halogen on a carrier Saturated hydrocarbons are isomerized using a catalyst comprising a combination of a platinum group component, a cobalt component, a tin component and a halogen component with a porous carrier material. The cobalt and platinum group components are reduced... | 02/21/1978 |
| 4045509 | Isomerization of paraffinic hydrocarbons with fused salt complex of aluminum halide and manganous halide deposited on a carrier 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... | 08/30/1977 |
| 4018839 | Hydrocarbon isomerization process Naphthenic hydrocarbons are isomerized using a catalytic composite comprising a combination of a platinum or palladium component, a rhodium component, a tin component and a halogen component with a porous carrier material.... | 04/19/1977 |
| 4013738 | Hydrocarbon isomerization process Isomerizable hydrocarbons are isomerized using a catalyst comprising a combination of a platinum group component, a cobalt component, a tin component and a halogen component with a porous carrier material. The cobalt and platinum group components are redu... | 03/22/1977 |
| 3992473 | Paraffin isomerization in the presence of isobutane or isopentane and a catalyst of aluminum chloride intercalated in graphite Isomerization of normal paraffin hydrocarbons with 5 to 7 carbon atoms per molecule to isoparaffins of high octane number is effected in the presence of at least one compound of the group isobutane and isopentane and a catalyst consisting essentially of g... | 11/16/1976 |
| 3984352 | Catalyst containing a Lewis acid intercalated in graphite Hydrocarbon conversion is effected in the presence of a catalyst consisting essentially of graphite having intercalated in the lattice thereof between about 5 and about 75 weight percent of a Lewis acid. The catalyst may additionally have intercalated the... | 10/05/1976 |
| 3963643 | Method of catalyst manufacture Alumina containing a platinum group metal is treated in contact with a Friedel Crafts metal halide, and in contact with a polyhalo compound, such as carbon tetrachloride, to produce an improved hydrocarbon conversion catalyst.... | 06/15/1976 |
| 3960709 | Hydrocarbon conversion with a trimetallic catalytic composite A trimetallic acidic catalytic composite, comprising a combination of catalytically effective amounts of platinum or palladium component, a rhodium component, a germanium component and a halogen component with a porous carrier material, is disclosed. The ... | 06/01/1976 |
| 3960710 | Hydrocarbon conversion with an acidic multimetallic catalytic composite Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a tin component, a cobalt compon... | 06/01/1976 |
| 3956413 | Hydrocarbon isomerization catalyst and process A hydrocarbon isomerization catalyst composition, comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium component, a germanium component, a halogen component and a Friedel-Crafts metal halide componen... | 05/11/1976 |
