Gulf Research & Development Company

Herman Taylor, Jr

John A Paraskos

Richard E Hildebrand

Huey P Malone

A catalytic process for liquefying coal wherein the life of the catalyst is extended by periodic screening to remove ash-containing particulate matter.

Process for extending life of coal liquefaction catalyst

A process for liquefying coal employing a low temperature preheater zone, a higher temperature non-catalytic hydrocracking zone and a catalytic hydrogenation zone in series. Carbon monoxide passes through the preheater and non-catalytic hydrocracking zones but is removed from the process in advance of the catalytic hydrogenation zone.

Coal liquefaction process employing carbon monoxide

A process for liquefying coal employing a low temperature preheater zone, a higher temperature non-catalytic hydrocracking zone and a catalytic hydrogenation zone. The process is improved by venting gases from the high temperature hydrocracking zone.

Process for liquefying coal employing a vented dissolver

A process for liquefying coal employing in series a low temperature preheated zone, a higher temperature non-catalytic hydrocracking zone and a catalytic hydrogenation zone.

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Pittsburgh, PA, United States of America

Herman Taylor, Jr