Phillips Petroleum Company

Other

Timothy P Murtha

Ernest A Zuech

Charles A Drake

William A Jones

Ronald E Brown

Larry E Reed

Gil J Greenwood

Mark D Scharre

Timothy P Harper

James P Degraffenried

Marvin M Johnson

Jon F Geibel

Robert E Reusser

Michael Duane Cliffton

Richard C Doss

Roy A Gray

Elizabeth A Todd

Tad K Shioyama

The incremental yield of hydrocarbons having five or more carbon atoms in a cracked product from a thermal cracking process is increased by contacting or treating the tubes of a thermal cracking furnace with a composition comprising tin and silicon.

Method for improving the yield of heavy hydrocarbons in a thermal cracking process

For a given percentage decomposition, the decomposition temperature of an organosilicon compound is reduced by admixing with the organosilicon compound a decomposition promoting organotin compound. The amount of decomposition promoting organotin compound admixed with the organosilicon compound is sufficient to effectively lower the decomposition temperature of the organosilicon required for a given percentage decomposition.

Method of promoting the decomposition of silicon compounds in a process

A novel method for treating the radiant tubes of a fired pyrolysis heater with an antifoulant composition for inhibiting the formation and deposition of coke thereon. Such novel method includes introducing the antifoulant into the crossover conduit between the convection tubes and radiant tubes of the fired pyrolysis heater.

Method for treating the radiant tubes of a fired heater in a thermal

A method for producing poly(arylene sulfide) of high molecular weight by subjecting to polymerization conditions a reaction mixture of alkaline metal hydroxide, halothiophenol and organic amide with a molar ratio of alkaline metal hydroxide to halothiophenol in a range of about 1.6 to about 3.2.

Preparation of poly(arylene sulfide) from halothiophenol and alkaline

The reduction of organic compounds is made more selective by modifying the reduction catalysts with compounds of sulfur.

Hydrogenation catalyst

A Pd/heteropolyacid/surfactant catalyst system, when used with proper diluents, improves the oxidation of olefins to ketones, while reducing corrosive effects.

Catalysts

A hydrocarbon feedstock containing at least one paraffin hydrocarbon and an odor-causing impurity is deodorized by contact with a deodorizing agent. The deodorizing agent is a mixture of nickel oxide and a rare earth metal oxide and the odor-causing impurity is from the group consisting of sulfides, mercaptans, olefins, and oxygenated olefins. The feedstock is contacted with the deodorizing agent at a temperature not exceeding 150.degree. C.

Process for deodorizing a paraffinic hydrocarbon feedstock

An aromatic hydrocarbon is contacted under suitable hydroalkylation conditions with a composition comprising a calcined, acidic, nickel and rare earth-treated crystalline zeolite.

Hydroalkylation catalyst and methods for producing and employing same

Palladium/heteropolyacid/surfactant catalyst system

Selective hydrogenation of organic materials

Unsaturated dinitriles are hydrogenated to saturated diamines using a rhodium catalyst on a silica support having a surface area larger than 275 m.sup.2 /g, a pore volume of from about 1.0 to 1.5 mL/g and an average pore size of from about 100 to about 175 A. The supported rhodium catalyst is prepared by a method which includes the steps of contacting a silica support having the characteristics described above with a solution or dispersion of rhodium or a reducible compound of rhodium, and then subjecting the impregnated silica support to vacuum treatment.

Catalysts for hydrogenation of unsaturated dinitriles

Catalytic hydrogenation of unsaturated dinitriles

Hydroalkylation of aromatic hydrocarbons using an acidic crystalline zeolite type support having ruthenium and nickel thereon, the nickel having been placed thereon responsive to correlation of hydroalkylation selectivity and the amount of alkali metal or alkaline earth metal ion removed from the support during cation exchange when preparing a catalyst. In one embodiment benzene is converted to cyclohexylbenzene.

Hydroalkylation using nickel-ruthenium catalyst on zeolite type support

Cobalt and gold in a ruthenium hydrogenation catalyst markedly increases the yield of product. A method for hydrogenating branched-chain olefinically unsaturated aliphatic dinitrile employing a ruthenium-cobalt-gold catalyst to produce saturated diamines is set forth.

Growing community of inventors

Bartlesville, OK, United States of America

Timothy P Murtha