Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1983-04-07
1984-11-27
Gantz, Delbert E.
Mineral oils: processes and products
Products and compositions
Lubricating oils
208 8LE, C10G 100, C10G 106, C10G 108
Patent
active
044850085
ABSTRACT:
An improved liquefaction process for solid carbonaceous materials wherein at least a portion of the liquefaction is accomplished in the presence of an added hydrogenation catalyst and a solvent containing at least 1.25 wt % donatable hydrogen and in the presence of partially liquefied, solid carbonaceous material at liquefaction conditions. In a preferred embodiment, the liquefaction is accomplished in a plurality of stages and a solvent containing at least 1.25 wt % donatable hydrogen is used in at least one stage, most preferably in the second stage. The partially liquefied solid carbonaceous material may be taken from the bottoms fraction of the effluent from any of the liquefaction stages.
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Bureau of Mines Bulletin 622; U.S. Dept. of the Interior, Bureau of Mines (1965) pp. 24-28.
Maa Peter S.
Veluswamy Lavanga R.
Vernon Lonnie W.
Exxon Research and Engineering Co.
Gantz Delbert E.
Hoover Wayne
Maull Helane E.
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