Exxon Research and Engineering Company

Dan R Neskora

Stephen Neil Vaughn

Michael Siskin

Glen Barry Brons

Alan Roy Katritzky

Claude C Culross

Steve D Reynolds

Edward Effron

W Neal Mitchell

Calude C Culross

Steve N Reynolds

This invention is directed to a staged process for producing liquids from coal or similar carbonaceous feeds combining a pretreatment stage and a liquefaction stage. In the process, the feed is dispersed in an organic solvent and reacted with carbon monoxide at an elevated temperature and pressure. The so pretreated coal is sent to a liquefaction reactor, wherein the coal is reacted in the presence of hydrogen and catalyst to produce valuable liquid fuels or feedstocks.

Coal hydroconversion process comprising solvent enhanced pretreatment

This invention is directed to a process for pretreating coal preliminary to a primary liquefaction or hydroconversion block. In the process, a coal feed, slurried in a solvent, is reacted with carbon monoxide in the presence of a chemical promoter at an elevated temperature and pressure. The promoter enhances the depolymerization and hydrogenation of the coal during pretreatment.

Conversion of coal with promoted carbon monoxide pretreatment

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Baton Rouge, LA, United States of America

Dan R Neskora