Mobil Oil Corporation

Other

Phillips Petroleum Company

Mobile Oil Corporation

Kenneth J Del Rossi

Albin Huss, Jr

Garry W Kirker

Jonathan E Child

David O Marler

Sergei Yurchak

Tomas R Melli

Thomas F Degnan

Ralph M Dessau

Samuel A Tabak

Randall D Partridge

Gregory A Jablonski

Anagha A Gupte

Michael Alan Better

Mohsen N Harandi

Bruce B Randolph

Stuart S Shih

Charles T Kresge

Ronald G Abbott

Klaus W Schatz

Frederick J Krambeck

Michael E Landis

Guenter H Kuehl

Clinton R Kennedy

Larry Arthur Green

Francis P Ragonese

Altaf Husain

George H Hatzikos

Jorge L Soto

Lloyd L Breckenridge

Brenda H Rose

Rafi Jalkian

Gayatri S Rav

Robert S Kurtas

Edward H Edelson

Thomas R Melli

David J Dovedytis

David J Esteves

Manoj Chalam

Johnathan E Child

Albin Jr Huss

There is provided a process for increasing the Cetane Index of a distillate fraction by reacting the fraction with hydrogen over a catalyst comprising a hydrogenation component, such as platinum, and zeolite Beta. The process results in the selective ring opening of cyclic compounds, such as aromatics, with a minimum of cracking of paraffinic hydrocarbons.

Process for Cetane improvement of distillate fractions

A novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbons to produce high octane alkylate products suitable for use as blending components of gasoline motor fuel. The novel catalyst comprises a mixture of a hydrogen halide, a sulfone and water and has suitable corrosion properties which permit its utilization in alkylation process systems. The novel alkylation catalyst is utilized in a novel process for alkylating olefin hydrocarbons with isoparaffin hydrocarbons.

Isoparaffin-olefin alkylation

There is provided a catalyst comprising a heteropoly acid, such as phosphotungstic acid, supported on a mesoporous crystalline material, such as M41S. A particular form of this M41S support is designated as MCM-41. There is also provided a method for preparing this catalyst by impregnating the heteropoly acid on the support. There is also provided a process for using this catalyst to catalyze acid catalyzed reactions, such as the isomerization of paraffins and the alkylation of aromatics.

Supported heteropoly acid catalysts

A method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising stripping HF from the spent catalyst, treating the stripped, spent catalyst with hydrogen to provide a stripped hydrotreated catalyst stream, and gravitationally separating the stripped hydrotreated catalyst stream to remove conjunct polymeric byproducts.

Removal of ASO from HF/sulfolane alkylation catalyst

There is provided a process for ring opening of aromatics and cycloaliphatics, as well as isomerization of aliphatics. The feedstream to this process comprises hydrocarbons having 6 carbon atoms. The process involves the use of at least two reactors connected in series. The first reactor comprises a zeolite catalyst and is operated under conditions which particularly promote ring opening. The catalyst in this first reactor may comprise zeolite Beta and platinum. A downstream reactor is operated under conditions to promote isomerization of aliphatics. The catalyst in the second reactor may comprise alumina, platinum and a chloride component. Hydrogen in the effluent of the first reactor may be removed and recycled to the first reactor. Hydrogen required for the second reactor may be satisfied by hydrogen remaining dissolved in the effluent from the first reactor after hydrogen is recycled to the first reactor.

Combined paraffin isomerization/ring opening process

The invention provides an isoparaffin-olefin alkylation catalyst composition comprising from about 5 to about 95 weight percent hydrofluoric acid, from about 5 to about 95 weight percent of a solvent having a Donor Number of less than about 40 and from about 0.05 to about 10 weight percent water. An isoparaffin-olefin alkylation process employing the catalyst composition of the invention is also disclosed.

Catalytic isoparaffin-olefin alkylation with HF and a low donicity

An isoparaffin-olefin alkylation process is disclosed which improves alkylate quality by segregating the olefin feed into intermediate feedstreams which are enriched in propene, 1-butene, and/or 2-butenes with respect to the olefin feed, and alkylating these intermediate feedstreams in separate reaction zones at reaction temperatures specific to the olefin feed to increase the ratio of trimethylpentanes to dimethylhexanes in the resulting alkylate product.

Multiple split feed isoparaffin-olefin alkylation

A continuous alkylation process for the production of high octane gasoline comprising contacting a mixture of an isoparaffin and an olefin with a catalyst complex comprising BF3:H.sub.3 PO.sub.4 in a continuous hydrocarbon downflow reactor.

Alkylation process using co-current downflow reactor with a continuous

There is provided a process for ring opening of aromatics and cycloaliphatics, as well as isomerization of aliphatics. The feedstream to this process comprises hydrocarbons having 6 carbon atoms. The process involves the use of at least two reactors connected in series. The first reactor contains a zeolite catalyst and is operated under conditions which particularly promote ring opening. The catalyst in this first reactor may comprise zeolite Beta and platinum. A downstream reactor is operated under conditions to promote isomerization of aliphatics. The catalyst in the second reactor may comprise alumina, platinum and a chloride component.

Combined paraffin isomerization/ring opening process for c5+naphtha

The present invention relates to a novel alkylation catalyst complex and to alkylation processes employing such a catalyst complex. More specifically, the invention relates to a novel catalyst complex comprising a BF.sub.3 :H.sub.3 PO.sub.4 adduct, and at least one polar hydrocarbon formed in situ. The catalyst complex may optionally include water as well as an added solubilizing agent. The invention further includes a pretreatment method for enhancing the isoparaffin selectivity of a catalyst complex containing a BF.sub.3 :H.sub.3 PO.sub.4 adduct.

Alkylation catalyst complex

This invention provides an isoparaffin-olefin alkylation catalyst composition comprising hydrofluoric acid, an additive, and a superacid promoter. The additive is present in concentration sufficient to effect deactivation of the hydrofluoric acid for isoparaffin-olefin alkylation such that the catalytic properties of said admixture of the hydrofluoric acid and the additive, in the absence of superacid promoter are characterized by the conversion of a mixed isoparaffin-olefin stream to product containing more than about 0.1 weight percent of alkyl halide.

Liquid acid alkylation catalyst and isoparaffin-olefin alkylation process

The present invention provides a method for separating conjunct polymers and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising the sequential steps of:

Sulfolane purification method

The present invention provides a method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid comprising the sequential steps of:

Sulfolane purification by hydrocarbon extraction

Paraffins, especially paraffins in the C.sub.4 -C.sub.8 range, are isomerized to iso-paraffins over an isomerization catalyst comprising a noble metal such as platinum on a support material comprising an inorganic, non-layered, porous, crystalline phase aluminosilicate material with pores of at least 13 .ANG. and which exhibits, after calcination, an X-ray diffraction pattern with at least one peak at a d-spacing greater than 18 .ANG.. These materials have a high surface area and sorption capacity marked by a benzene adsorption capacity of greater than about 15 grams benzene per 100 grams at 50 torr and 25.degree. C. In its preferred form, the support material has a uniform, hexagonal arrangement of pores with diameters of at least about 13 .ANG. and a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 .ANG. which corresponds to at least one peak in the X-ray diffraction pattern.

Paraffin isomerization process utilizing a catalyst comprising a

The invention provides a catalyst complex for promoting alkylation of an isoparaffin with an olefin, said catalyst complex comprising the reaction product of BF.sub.3 and at least one selected from the group consisting of H.sub.3 PO.sub.4 and H.sub.2 O; and, additionally, excess BF.sub.3 in concentration of from about 10 ppm (weight) to about 5 percent by weight of the total isoparaffin and olefin feed. The invention further provides a process for the alkylation of an isoparaffin with an olefin by contacting a mixture of isoparaffin and olefin with the catalyst complex of the invention, decanting the hydrocarbon product from the catalyst complex, and deacidifying the hydrocarbon product.

Isoparaffin:olefin alkylation process and catalyst complex

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Woodbury, NJ, United States of America

Kenneth J Del Rossi