Mineral oils: processes and products – Phenolic or toxic oils
Patent
1980-11-03
1982-08-31
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
208 10, C10G 100, C10G 106
Patent
active
043471170
ABSTRACT:
An improved process for liquefying solid carbonaceous materials wherein increased naphtha yields are achieved by effecting the liquefaction at a pressure within the range from about 1750 to about 2800 psig in the presence of recycled bottoms and a hydrogen-donor solvent containing at least 0.8 wt % donatable hydrogen. The liquefaction is accomplished at a temperature within the range from about 700.degree. to about 950.degree. F. The coal:bottoms ratio in the feed to liquefaction will be within the range from about 1:1 to about 5:1 and the solvent or diluent to total solids ratio will be at least 1.5:1 and preferably within the range from about 1.6:1 to about 3:1. The yield of naphtha boiling range materials increases as the pressure increases but generally reaches a maximum at a pressure within the range from about 2000 to about 2500 psig.
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patent: 4022680 (1977-05-01), Maa
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"E.D.S. Coal Liq. Process Development", Phase IV, FE-2893-25, Dec. 31, 1978, pp. 41, 42 and 48-50; FE-2893-29, Mar. 31, 1979, pp. 21, 22 and 33-35.
"E.D.S. Coal Liq. Process Development", Phase IV, FE-2893-24, Jun. 30, 1979, pp. 6-7 and 10; FE-2893-35, pp. 38-56, 59-60 and 85-95.
Anderson George H.
Bauman Richard F.
Hsia Steve J.
Taunton John W.
Trachte Ken L.
Exxon Research & Engineering Co.
Gantz Delbert E.
Hoover Wayne
Wright William G.
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