Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Plural hydrogenation steps
Patent
1985-10-23
1988-03-01
Pal, Asok
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Plural hydrogenation steps
208403, 208405, 208406, 208420, 208422, C10G 106
Patent
active
047284188
ABSTRACT:
A novel process for the low-temperature depolymerization and liquefaction of coal wherein the coal is subjected to sequential processing steps for the cleavage of different types of intercluster lnikages during each processing step. A metal chloride catalyst is intercalated in finely crushed coal and the coal is partially depolymerized under mild hydrotreating conditions during the first processing step. In the second processing step the product from the first step is subjected to base-catalyzed depolymerization with an alcoholic solution of an alkali hydroxide, yielding an almost fully depolymerized coal, which is then hydroprocessed with a sulfided cobalt molybdenum catalyst in a third processing step to obtain a hydrocarbon oil as the final product.
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Saito Ikuo
Shabtai Joseph S.
Pal Asok
University of Utah
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