The Goodyear & Tire Rubber Company

Kenneth J Frech

James J Tazuma

Lawson G Wideman

Edward Norbert Nowak

Roger W Spoerke

Frederic H Hoppstock

The invention relates to a finishing process for the removal of low level concentrations of mercaptans, sulfides and disulfides from a gas stream, especially a natural gas stream. The sulfur compounds are washed from the gas stream with a solution containing hydrogen peroxide, sodium carbonate or sodium hydroxide, and ammonia or an amine.

Finishing process for the removal of sulfur compounds from a gas stream

There is disclosed a process for removing sulfur compounds from a gas stream. The process involves passing the gas stream containing the sulfur compounds through a mass of porous material that has deposited upon it a metal oxide, the improvement comprises the continuous or intermittent addition of an oxidizing agent and an amine.

Sulfur removal from a gas stream

This invention relates to a process for the removal of sulfur compounds from a gas stream. More specifically, this invention relates to an improvement in the iron oxide method of sulfur removal from a gas stream through the use of hydrogen peroxide.

Method for removal of sulfur compounds from a gas stream

This invention relates to a process for the removal of sulfur compounds from a gas stream which consists of contacting said gas stream with alkali metal salts of sulfonamides or resins containing sulfonamide functionalities.

Method for removal of sulfur compounds from a gas

A process for preparing morpholine from diethyleneglycol and an aqueous solution of ammonia in a continuous manner using a modified Raney nickel catalysts without the use of any hydrogen is disclosed.

Continuous morpholine process

There is disclosed an improved dehydrogenation catalysts prepared from mixtures of WO.sub.3 and V.sub.2 O.sub.5 ; mixtures of MoO.sub.3 and V.sub.2 O.sub.5 and mixtures of Cr.sub.2 O.sub.3 or CrO.sub.3 and V.sub.2 O.sub.5 which are heated to temperatures to melt the oxides to form W(VO.sub.4).sub.2, Mo(VO.sub.4).sub.2 and CrVO.sub.4 which are then treated with a reductant to form the active dehydrogenation catalytic species, the methods for the preparation of these catalysts and to the improved dehydrogenation processes which can be effected when dehydrogenatable hydrocarbons are in contact with these catalysts.

Dehydrogenation process

There is disclosed a method comprising the oxidative dehydrogenation of at least one hydrocarbon selected from the group consisting of butene-1, butene-2, 2-methyl-1-butene, 2-methyl-2-butene, 3-methyl-1-butene, n-pentene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, 2-methyl-1-pentene, 2-methyl-2-pentene, 4-methyl-2-pentene, 3-methyl-1-pentene, 3-methyl-2-pentene, 2-ethyl-1-butene, ethyl benzene and isopropyl benzene at oxidative dehydrogenation conditions while in contact with a catalyst consisting essentially of a mixture of cobalt and molybdenum in combination with oxygen which is activated with chromium in combination with oxygen, said catalyst being calcined for at least 1 hour at 400.degree. C. to 1100.degree. C. prior to use.

Oxidative dehydrogenation of olefins to diolefins

There is disclosed a method comprising the oxidative dehydrogenation of at least one hydrocarbon selected from the group consisting of butene-1, butene-2, 2-methyl-1-butene, 2-methyl-2-butene, 3-methyl-1-butene, n-pentene, 2,3-dimethyl-1-butene, 2,3-dimethyl-2-butene, 2-methyl-1-pentene, 2-methyl-2-pentene, 4-methyl-2-pentene, 3-methyl-1-pentene, 3-methyl-2-pentene, 2-ethyl-1-butene, ethyl benzene and isopropyl benzene at oxidative dehydrogenation conditions while in contact with a catalyst consisting essentially of a mixture of zinc and molybdenum in combination with oxygen which is activated with chromium in combination with oxygen, said catalyst being calcined for at least 1 hour at 400.degree. C. to 1100.degree. C. prior to use.

There is disclosed a process for the preparation of butenes from propylene using a catalyst comprising from 1 to 15 percent by weight of vanadium oxide -- V.sub.2 O.sub.5 and from 0.1 to 5 percent by weight of tungsten oxide -- WO.sub.3 impregnated on a support which has a surface area of 10 to 400 square meters per gram which catalyst has been activated by contact with from 0.1 to 10 moles of a trialkylaluminum compound per mole of V.sub.2 O.sub.5.

Catalytic process for the preparation of butenes from propylene

Dehydrogenation catalysts

There is disclosed a process for the preparation of 2-methyl-1,5-diaminopentane by a multi-stage hydrogenation of .alpha.-methylene glutaronitrile using as a catalyst a highly dispersed form of nickel in which the first stage hydrogenation is conducted at temperatures ranging from about 20.degree.C to about 50.degree.C and a hydrogen pressure of at least about 14 kilograms per square centimeter and the second stage hydrogenation is conducted at temperatures ranging from about 120.degree.C to about 140.degree.C using a hydrogen pressure of at least about 42 kilograms per square centimeter.

Preparation of 2-methyl-1,5-diaminopentane

There is disclosed an improved process of olefin metathesis which employs catalysts which are tungsten oxides or tungsten sulfides on suitable supports. The improvement is the pretreatment of such catalysts or the regeneration of such catalysts with ethylene or a butene at about 450.degree.C to about 750.degree.C.

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Tallmadge, OH, United States of America

Kenneth J Frech