Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Using specifically added catalyst during hydrogenation
Patent
1992-04-09
1993-09-21
Morris, Theodore
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Using specifically added catalyst during hydrogenation
208412, 208413, 208420, C10G 106, C10G 108
Patent
active
052465705
ABSTRACT:
A coal liquefaction process employing a first stage liquefaction step catalyzed by a soluble molybdenum-containing organophosphorodithioate catalyst is disclosed. In some embodiments, two consecutive liquefaction steps employ a molybdenum-containing organophosphorodithioate catalyst operating at a relatively high liquefaction temperature. In other embodiments, a second liquefaction process step operating at a relatively low temperature employs a hydrocracking catalyst to upgrade materials obtained from the first soluble catalyst liquefaction step. In some embodiments, an interstage gas separator removes gases such as carbon dioxide produced in the first liquefaction step from a partially liquefied mixture prior to further liquefying the mixture in the second liquefaction step.
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Basu Arunabha
Cronauer Donald C.
Joseph Joseph T.
Kukes Simon G.
Swanson April J.
Amoco Corporation
Griffin Walter D.
Kretchmer Richard A.
McDonald Scott P.
Morris Theodore
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