Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1982-02-25
1983-10-25
Wright, William G.
Mineral oils: processes and products
Products and compositions
Lubricating oils
C10G 106
Patent
active
044117663
ABSTRACT:
A process is described for the solvent refining of coal into a gas product, a liquid product and a normally solid dissolved product. Particulate coal and a unique co-catalyst system are suspended in a coal solvent and processed in a coal liquefaction reactor, preferably an ebullated bed reactor. The co-catalyst system comprises a combination of a stoichiometric excess of iron oxide and pyrite which reduce predominantly to active iron sulfide catalysts in the reaction zone. This catalyst system results in increased catalytic activity with attendant improved coal conversion and enhanced oil product distribution as well as reduced sulfide effluent. Iron oxide is used in a stoichiometric excess of that required to react with sulfur indigenous to the feed coal and that produced during reduction of the pyrite catalyst to iron sulfide.
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U.S. Dept. of Energy, Exploratory Research on Solvent Refined Coal Liquefication, Quarterly Tech. Progress Report, Jul. 1-Sep. 30, 1980. Pittsburg & Midway Coal Mining Co., DOE/ET/14800-25. Fossil Energy, Feb. 1981.
Garg Diwakar
Givens Edwin N.
Air Products and Chemicals Inc.
Chase Geoffrey L.
Innis E. Eugene
Simmons James C.
Wright William G.
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