Uop Lcc

Alliedsignal Inc.

R Joe Lawson

J W Sachtler

Mark D Moser

Richard E Marinangeli

Thomas R Fritsch

Paula L Bogdan

Leonid B Galperin

Paul T Barger

Robert J Schmidt

Andrea G Bozzano

Li Wang

Vivekanand N Parulekar

Santi Kulprathipanja

Bipin Virpal Vora

Stephen W Sohn

Maureen L Bricker

Dean E Rende

Susan L Lambert

Karl Z Steigleder

Michelle J Cohn

Masao Takayama

Andrew W Broerman

George J Antos

Russell W Johnson

Lance Awender Baird

Michael B Russ

Kurt A Detrick

Delmar W Robinson

Mark A Krawczyk

Michael G Gatter

Robert H Jensen

Roger L Peer

Dorothy M Richmond

Albert L Lapidus

Oleg L Eliseev

Norman L Gilsdorf

Patrick T Darby, Ii

Aduard G Ostapenco

Charles R Hamlin

The present invention is a process for producing phenyl-alkanes by paraffin adsorptive separation followed by paraffin dehydrogenation and then by alkylation of a phenyl compound by a lightly branched olefin. The adsorptive separation step employs a silicalite adsorbent and, as the desorbent, a C-Clinear paraffin, a C-Ccycloparaffin, a branched paraffin such as isooctane, or mixtures thereof. The effluent of the alkylation zone comprises paraffins that are recycled to the adsorptive separation step or to the dehydrogenation step. This invention is also a process that that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups that to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives. This invention is moreover the use of compositions produced by these processes as lubricants and lubricant additives.

Phenyl-alkane compositions produced using an adsorptive separation section

The process disclosed herein is a process for producing phenyl-alkanes by alkylation of an aryl compound with an olefinic compound and which uses a mordenite catalyst and a silica-alumina catalyst. The selectivity of the process to 2-phenyl-alkanes can be varied over a wide range.

Staged process for producing linear 2-phenyl-alkanes

This invention relates to a dehydrogenation process using a layered catalyst composition. The catalyst composition comprises an inner core such as alpha-alumina, and an outer layer bonded to the inner core composed of an outer refractory inorganic oxide such as gamma-alumina. The outer layer has uniformly dispersed thereon a platinum group metal such as platinum and a promoter metal such as tin. The composition also contains a modifier metal such as lithium. The catalyst composition shows improved durability and selectivity for dehydrogenating hydrocarbons, especially at dehydrogenation conditions comprising a low water concentration.

Dehydrogenation process using layered catalyst composition

A process for producing phenyl-alkanes by paraffin dehydrogenation followed by olefin isomerization and then by alkylation of a phenyl compound by a lightly branched olefin is disclosed. An effluent of the alkylation section comprises paraffins that are recycled to the dehydrogenation step. A process that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups to produce modified alkylbenzene sulfonates is also disclosed. In addition, the compositions produced by these processes, which can comprise detergents, lubricants, and lubricant additives, are disclosed.

Process for producing phenyl-alkanes using olefin isomerization and paraffin recycle

Long chain alcohols and acids or other similar oxygenates such as esters are produced from paraffins of similar carbon number by a process comprising paraffin dehydrogenation, carbonylation, and separation. Preferably a mixture of paraffins extending over several carbon numbers and recovered from a kerosene fraction is processed, and unconverted paraffins are recycled to a dehydrogenation zone. Alternative reaction zone configurations, catalyst systems and product recovery methods are disclosed.

Carbonylation process

The present invention is a process for producing phenyl-alkanes by paraffin adsorptive separation followed by paraffin dehydrogenation and then by alkylation of a phenyl compound by a lightly branched olefin. The adsorptive separation step employs a silicalite adsorbent and, as the desorbent, a C -C linear paraffin, a C -C cycloparaffin, a branched paraffin such as isooctane, or mixtures thereof. The effluent of the alkylation zone comprises paraffins that are recycled to the adsorptive separation step or to the dehydrogenation step. This invention is also a process that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups that to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives. This invention is moreover the use of compositions produced by these processes as lubricants and lubricant additives.

Process for producing phenyl-alkanes using an adsorptive separation section

The present invention is a process for producing phenyl-alkanes by alkylation of an aryl compound with an olefinic compound and which uses a mordenite catalyst and a silica-alumina catalyst. This invention is also a process that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives. This invention is moreover the use of compositions produced by these processes as lubricants and lubricant additives.

Process for producing phenyl-alkanes using dual zones

The present invention is a process for producing aryl-alkanes by paraffin isomerization followed by paraffin dehydrogenation and then by alkylation of an aryl compound by a lightly branched olefin. The effluent of the alkylation zone comprises paraffins that are recycled to the isomerization step or to the dehydrogenation step. This invention is also a process that that sulfonates phenyl-alkanes having lightly branched aliphatic alkyl groups that to produce modified alkylbenzene sulfonates. In addition, this invention is the compositions produced by these processes, which can be used as detergents having improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates, as lubricants, and as lubricant additives. This invention is moreover the use of compositions produced by these processes as lubricants and lubricant additives.

Arylalkane sulfonate compositions produced using isomerization, dehydrogenation, and alkylation

Arylalkane compositions produced by isomerization, dehydrogenation, and alkylation

Process for producing arylalkanes and arylalkane sulfonates, compositions produced therefrom, and uses thereof

The present invention is a process for producing phenyl-alkanes at alkylation conditions in the presence of a zeolite having an NES zeolite structure type, such as NU-87. This invention produces phenyl-alkanes having lightly branched aliphatic alkyl groups which are used to produce modified alkylbenzene sulfonates that have improved cleaning effectiveness in hard and/or cold water while also having biodegradability comparable to that of linear alkylbenzene sulfonates.

Process for producing arylalkanes at alkylation conditions using a

The present invention relates to a process for the production of light olefins comprising olefins having from 2 to 4 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone containing a metal alumninophosphate catalyst to produce a light olefin stream. The light olefin stream is fractionated and a portion of the products are metathesized to enhance the yield of the ethylene, propylene, and/or butylene products. Propylene can be metathesized to produce more ethylene, or a combination of ethylene and butene can be metathesized to produce more propylene. This combination of light olefin production and metathesis, or disproportionation provides flexibility to overcome the equilibrium limitations of the metal aluminophosphate catalyst in the oxygenate conversion zone. In addition, the invention provides the advantage of extended catalyst life and greater catalyst stability in the oxygenate conversion zone.

Process for producing light olefins

Linear alpha-olefin formation via oligomerization of ethylene using transition metal catalysis leads to a Schultz-Flory distribution of oligomers. At modest temperatures formation of heavy oligomers which are waxy solids only partly soluble in the LAO product mix causes reactor plugging and curtailing the time of continuous runs. Recycling a portion of a lighter oligomeric fraction obviates this problem and permits runs uninterrupted by solids formation.

Process for linear alpha-olefin production: eliminating wax precipitation

An improved process is disclosed for the conversion of hydrocarbons, using a catalyst comprising a non-zeolitic molecular sieve which has been activity-moderated by controlled carbon deposition. It is of particular interest in skeletal isomerization to increase the proportion of olefins containing tertiary carbons in the product with low formation of undesirable by-products. Controlled carbon deposition increases selectivity to the desired olefin isomers. Product olefins may be further processed to obtain ethers, which enjoy high current interest as components for reformulated gasoline.

Selectivity in hydrocarbon conversion

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Arlington Heights, IL, United States of America

R Joe Lawson