Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Chemical modification of solids before hydrogenation
Patent
1984-02-27
1988-07-19
Sneed, Helen M. S.
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Chemical modification of solids before hydrogenation
208407, 208408, C10G 100, C10G 106
Patent
active
047583312
ABSTRACT:
Fine particles of solid fossil fuels are pyrolyzed by passage in a thin layer through a heating zone at successively higher temperatures in a non-oxidizing atmosphere while rapidly separating and removing volatile pyrolysis products. The resulting char may be first treated with mineral acid or employed directly in the hydroprocessing of additional solid fossil fuel to liquid fuels. Alternatively, the acid-washed char may be hydrotreated to afford an improved char product having a low sulfur and mineral content.
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Cooper Jimmie D.
Helfinstine Roy J.
Kruse Carl W.
Shimp Neil F.
Board of Trustees University of Illinois
Hill Philip
Sneed Helen M. S.
Wright William G.
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