Texaco Inc.

Dick Y Jung

Allen M Robin

Donald Duane Brooker

James K Wolfenbarger

Erven J Kuhlmann

Richard F Beaupre

Jerrold S Kassman

Hyung K Zang

Richard P Guptill

Slag deposits in partial oxidation reactors, like coke gasifiers, are removed by controlling temperature and slag derivatization. Derivatized slag is fluidized and leaves the reactor without solidifying in and filling the reactor outlet.

Deslagging gasifiers by controlled heat and derivatization

Hydrogen sulfide is separated from the dimethyl ether of tetraethylene glycol through a membrane of hydrolyzed cellulose.

Separation of gas from solvent by membrane technology

A process for improving the properties of a hydrogen donor coal liquefaction solvent employed in a coal liquefaction process which comprises separating said coal liquefaction solvent into a first fraction boiling in the range from about 350.degree. to about 675.degree. F., and a second fraction boiling in the range from about 675.degree. F. to about 1000.degree. F., hydrogenating said first fraction at a temperature ranging from about 600.degree. to about 800.degree. F., under a pressure of about 500 to 4000 psig, hydrogenating said second fraction at a temperature ranging from about 600.degree. to 700.degree. F. at a pressure from about 500 to 4000 psig and combining said hydrogenated first and second fractions to provide a coal liquefaction solvent having an increased concentration of hydrogen donor components.

Process for improving the hydrogen donor properties of a coal

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Fishkill, NY, United States of America

Dick Y Jung