| Patent Number |
Title Of Patent |
Date Issued |
| 5962760 |
Alkylation of aromatics using a metal cation-modified friedel-crafts type catalyst |
October 5, 1999 |
| A process for the alkylation of aromatic compounds with an olefin or alkyl halide having from 1 to 24 carbon atoms utilizes a novel catalyst comprising: a) a refractory inorganic oxide, b) the reaction product of a first metal halide and bound surface hydroxyl groups of the refractory |
| 5849977 |
Metal cation-modified alkylation catalysts |
December 15, 1998 |
| A process for the alkylation of alkenes having from 2 to 6 carbon atoms with an alkane having from 4 to 6 carbon atoms to afford an alkylate comprises reacting in the liquid phase the alkene and alkane under alkylation conditions in the presence of a novel catalyst comprising: a) a r |
| 5763728 |
Recovery and recycle of HF-amine complex in HF alkylation |
June 9, 1998 |
| An HF-agent complex, such as HF-pyridine complex where the complexing agent is pyridine, is recovered and recycled from a by-product containing stream in an alkylation process using the complex by (a) selectively removing a portion of the HF from the by-product stream to produce an HF-de |
| 5739074 |
Metal cation-modified alkylation catalysts |
April 14, 1998 |
| A catalytic composite of a refractory inorganic oxide whose bound surface hydroxyl group has reacted with a Friedel-Crafts type metal halide and whose acidity has been modified by the deposition of a monovalent metal cation, especially an alkali metal cation, or alkaline earth metal cati |
| 5672797 |
Alkylation of aromatics using a metal cation-modified friedel-crafts type catalyst |
September 30, 1997 |
| A process for the alkylation of aromatic compounds with an olefin, alcohol, or alkyl halide having from 1 to 24 carbon atoms comprising reacting in the liquid phase the aromatic and alkylating agent under alkylation conditions in the presence of a novel catalyst comprising: a) a refracto |
| 5648579 |
Continuous alkylation of aromatics using solid catalysts; prevention of catalyst deactivation us |
July 15, 1997 |
| A novel continuous process for the preparation of alkylated benzenes effected by solid catalysts which become deactivated under alkylation conditions uses a single catalyst zone for both reaction and catalyst flushing to prevent deactivation. The process utilizes a pulsed flow of the |
| 5523503 |
Cocurrent simulated moving bed hydrocarbon alkylation process |
June 4, 1996 |
| Hydrocarbons such as isobutane and benzenes are alkylated using a solid catalyst in a process which simulates the cocurrent movement of the catalyst bed versus the reactants. This has been found to greatly reduce the rate of catalyst deactivation compared to simulated countercurrent |
| 5491277 |
Mixed-phase solid bed hydrocarbon alkylation process |
February 13, 1996 |
| Paraffins and other hydrocarbons are alkylated using a solid bed catalyst in a process featuring a reaction zone operated at mixed-phase conditions which allow the heat of reaction to vaporize a portion of the liquid phase feed hydrocarbon passing downward through it thus facilitating re |
| 5391527 |
Regeneration of a modified alkylation catalyst with hydrogen |
February 21, 1995 |
| Catalytic composites of the reaction product of a metal halide having Friedel-Crafts activity with the bound surface hydroxyl group of inorganic oxides and containing a zerovalent metal with hydrogenation activity, often are effective catalysts in motor fuel alkylation which, however, |
| 5344997 |
Alkylation of aromatics using a fluorided silica-alumina catalyst |
September 6, 1994 |
| A fluorided silica-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene by linear olefins to produce linear alkyl benzenes at temperatures |
| 5334793 |
Increasing catalyst life and improving product linearity in the alkylation of aromatics with lin |
August 2, 1994 |
| It has been found that the aromatic byproducts normally formed in the dehydrogenation of normal paraffins to linear monoolefins are detrimental in the usual processes of aromatic alkylation using the dehydrogenation product mixture as an alkylation feedstock. In particular, when solids a |
| 5310713 |
Regeneration of an alkylation catalyst with hydrogen |
May 10, 1994 |
| Catalytic composites of the reaction product of a metal halide having Friedel-Crafts activity with the bound surface hydroxyl group of inorganic oxides and containing a zerovalent metal with hydrogenation activity, often are effective catalysts in motor fuel alkylation which, however, |
| 5276231 |
Alkylaromatic process with removal of aromatic by-products |
January 4, 1994 |
| An improved process for the production of alkylated aromatic compounds by paraffin dehydrogenation and aromatic alkylation is disclosed. Aromatic by-products normally formed in paraffin dehydrogenation are selectively removed using at least one aromatics removal zone. Removal of these |
| 5258564 |
Process for producing aromatic compounds from C2-C6 aliphatic hydrocarbons using a hydrogen tole |
November 2, 1993 |
| A process for converting C.sub.2 to C.sub.6 aliphatic hydrocarbons to aromatics is described. The process uses a catalyst which contains a zeolite, an aluminum phosphate binder and a gallium component. Examples of zeolites which can be used are the ZSM family of zeolites, with ZSM-5 |
| 5245094 |
Increasing catalyst life and improving product linearity in the alkylation of aromatics with lin |
September 14, 1993 |
| It has been found that the aromatic byproducts normally formed in the dehydrogenation of normal paraffins to linear monoolefins are detrimental in the usual processes of aromatic alkylation using the dehydrogenation product mixture as an alkylation feedstock. In particular, when solids a |
| 5212127 |
Process for reactivating a deactivated dehydrocyclodimerization catalyst |
May 18, 1993 |
| 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.degree. C. The instant process restor |
| 5196574 |
Detergent alkylation process using a fluorided silica-alumina |
March 23, 1993 |
| A fluorided silca-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene to produce linear alkyl benzenes at temperatures no greater than |
| 5169812 |
Catalyst and process for producing aromatic compounds from C.sub.2 -C.sub.6 |
December 8, 1992 |
| A catalyst for converting C.sub.2 to C.sub.6 aliphatic hydrocarbons to aromatics is described. The catalyst contains a zeolite, an aluminum phosphate binder and a gallium component. Examples of zeolites which can be used are the ZSM family of zeolites, with ZSM-5 being a specific exa |
| 5160032 |
Hydrocarbon conversion process using alumina clay compositions |
November 3, 1992 |
| This invention relates to hydrocarbon conversion process using a catalyst consisting essentially of a layered clay homogeneously dispersed in an inorganic oxide matrix. The clay is dispersed in such a way that the clay layers are completely surrounded by the inorganic oxide matrix. The |
| 5114895 |
Alumina clay compositions |
May 19, 1992 |
| This invention relates to a composition, a method of preparing the composition and a catalyst using the composition. The composition consists essentially of a layered clay homogeneously dispersed in an inorganic oxide matrix. The clay is dispersed in such a way that the clay layers are |
| 5043511 |
Production of alkyl aromatic compounds |
August 27, 1991 |
| Alkyl aromatic compounds may be prepared by reacting an aromatic compound such as benzene with an alkylating agent such as an olefin or alkyl halide in the presence of an alkylation catalyst. The alkylation catalyst of the present invention comprises a clay which has been coextruded with |
| 5034564 |
Production of alkyl aromatic compounds |
July 23, 1991 |
| Alkyl aromatic compounds may be prepared by reacting an aromatic compound such as benzene with an alkylating agent such as an olefin, alkyl halide or alkyl alcohol in the presence of an alkylation catalyst. The alkylation catalyst of the present invention comprises a pillared clay and a |
| 5003121 |
Production of alkyl aromatic compounds |
March 26, 1991 |
| Alkyl aromatic compounds may be prepared by reacting an aromatic compound with an alkylating agent such as an olefin in the presence of an alkylation catalyst. The alkylation catalyst of the present invention comprises a composite which has been prepared by coextruding a clay compone |
| 4921946 |
Hydrocarbon conversion process |
May 1, 1990 |
| A hydrocarbon conversion process is disclosed which extends the useful life of a regenerable zeolite-containing hydrocarbon conversion catalyst. In one aspect of this process, a hydrocarbon feed containing fluorides is passed through a fluoride removal system which reduces the fluoride |
| 4891466 |
HF alkylation process |
January 2, 1990 |
| A novel liquid acid catalyzed alkylation process utilizing a liquid acid catalyst comprising a surfactant and a liquid acid is disclosed which incorporates a fixed bed of contact material to improve the alkylation reaction zone efficiency. The fixed bed of contact material also allows |
| 4835333 |
Motor fuel alkylation process utilizing a surfactant containing catalyst to reduce hydrofluoric |
May 30, 1989 |
| A novel hydrofluoric acid-catalyzed motor fuel alkylation process and catalyst is disclosed which incorporates from 0.5 to 5 vol. % of a cationic or anionic surfactant component in an HF containing acid alkylation catalyst to enable the process to be operated at an olefin-to-acid vol |
| 4795845 |
Regeneration of dehydrocyclodimerization catalyst |
January 3, 1989 |
| A process for catalytic dehydrocyclodimerization and regeneration of the catalyst. C.sub.2 to C.sub.5 aliphatic hydrocarbons are reacted to produce aromatics, using a catalyst of a composition especially adapted to minimize deposition of coke on the catalyst. The catalyst is comprised of |
| 4795728 |
Motor fuel alkylation process utilizing a surfactant containing catalyst to reduce hydrofluoric |
January 3, 1989 |
| A novel hydrofluoric acid-catalyzed motor fuel alkylation process and catalyst is disclosed which incorporates from 0.5 to 5 vol. % of a cationic or anionic surfactant component in an HF containing acid alkylation catalyst to enable the process to be operated at an olefin-to-acid vol |
| 4783567 |
HF alkylation process |
November 8, 1988 |
| A novel liquid acid catalyzed alkylation process is disclosed which incorporates a fixed bed of contact material to improve the alkylation reaction zone efficiency. The fixed bed of contact material also allows the process to be efficiently operated at lower acid to olefin mole/mole |
| 4783566 |
Hydrocarbon conversion process |
November 8, 1988 |
| A hydrocarbon conversion process is disclosed which extends the useful life of a regenerable zeolite-containing hydrocarbon conversion catalyst. In one aspect of this process, a hydrocarbon feed containing fluorides is passed through a fluoride removal system which reduces the fluoride |
| 4746763 |
Process for producing aromatic compounds from C.sub.2 -C.sub.6 aliphatic hydrocarbons |
May 24, 1988 |
| The present invention relates to a process for producing aromatic compounds from C.sub.2 -C.sub.6 aliphatic hydrocarbons. In this process, a feedstock containing C.sub.2 -C.sub.6 aliphatic hydrocarbons is passed into a reaction zone and into contact with a catalyst zone containing two |
| 4724271 |
Regeneration of dehydrocyclodimerization catalyst |
February 9, 1988 |
| A process for catalytic dehydrocyclodimerization and regeneration of the catalyst. C.sub.2 to C.sub.5 aliphatic hydrocarbons are reacted to produce aromatics, using a water-sensitive catalyst of a composition especially adapted to minimize deposition of coke on the catalyst. The catalyst |
| 4677245 |
Novel motor fuel alkylation process |
June 30, 1987 |
| A novel hydrocarbon alkylation process is disclosed wherein the feed hydrocarbons are dried to maintain the water content of the alkylation catalyst at less than 2.0 wt. %, where said alkylation catalyst is comprised of a mineral acid and an ether component selected from the group co |
| 4665271 |
Novel motor fuel alkylation catalyst and process for the use thereof |
May 12, 1987 |
| A novel hydrocarbon alkylation catalyst is disclosed comprising a mineral acid and an ether component. A process for utilizing the novel catalyst is also disclosed. |
| 4636488 |
Novel motor fuel alkylation catalyst and process for the use thereof |
January 13, 1987 |
| A novel hydrocarbon alkylation catalyst is disclosed comprising a mineral acid and an ether component. A process for utilizing the novel catalyst is also disclosed. |
| 4634801 |
Motor fuel alkylation process utilizing low acid |
January 6, 1987 |
| A novel hydrocarbon alkylation catalyst is disclosed comprising a mineral acid and an ether component. A process for utilizing the novel catalyst is also disclosed. |
