Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Chemical modification of solids before hydrogenation
Patent
1993-03-29
1994-08-09
Lieberman, Paul
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Chemical modification of solids before hydrogenation
208420, 208427, 208430, 208433, 208435, C10G 106
Patent
active
053363957
ABSTRACT:
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 reacted with carbon monoxide and water at an elevated temperature and pressure. The so pretreated coal is sent to a liquefaction reactor, wherein the coal is reacted at a somewhat higher temperature in the presence of hydrogen and catalyst to produce valuable liquid fuels or feedstocks.
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S. D. Brandes, et al.; Coal Pretreatment, Chemistry and Technology; U.S. Dept. of Energy, Pittsburgh, Pa. 15236; SRI International, Menlo Park Calif. 94025 EP-311-164-A, Single-step coal liquefaction process--using carbon monoxide, aq. alkali for hydrogen prodn. by conversion, and a transition metal hydrogenation catalyst Sep. 8, 1987-Aug. 27, 1989.
Culross Claude C.
Pabst Joanne K.
Reynolds Steve D.
Vaughn Stephen N.
Winter, Jr. William E.
Exxon Research and Engineering Company
Hailey Patricia L.
Lieberman Paul
Naylor Henry E.
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