Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1984-01-26
1985-01-22
Gantz, Delbert E.
Mineral oils: processes and products
Products and compositions
Lubricating oils
C10G 108
Patent
active
044950551
ABSTRACT:
A process for improved catalytic hydrogenation of coal to produce increased yields of low boiling hydrocarbon liquids and gas products, in which a coal-oil slurry is fed directly with only limited preheating into an ebullated bed catalytic reaction zone to provide increased hydroconversion and improved yields of low boiling hydrocarbon liquids. In the process, a coal is slurried with a hydrogenated coal-derived liquid and heated to only a limited extent, as defined by a temperature-time severity unit index (STTU) less than about 0.1, so as to avoid depleting the hydrogen donor capacity of the solvent liquid, and the slurry is then fed directly into an ebullated bed catalytic reaction zone maintained at 650.degree.-900.degree. F. temperature and 1000-5000 psi hydrogen partial pressure. Supplemental heat is provided to the reaction zone as needed by heating recycled reactor liquid and recycled hydrogen streams to temperatures above the reaction zone temperature. If desired, effluent liquid from the reaction zone can be advantageously passed with hydrogen to a second ebullated bed catalytic reaction zone for further hydrogentation reaction at different severity selected to provide increased conversion of the coal and coal derived liquids and produce increased yields and/or improved selectivity of light hydrocarbon liquid products.
REFERENCES:
patent: 3540995 (1970-11-01), Wolk et al.
patent: 3607719 (1971-09-01), Johnson et al.
patent: 3679573 (1972-07-01), Johnson
patent: 3725241 (1973-04-01), Chervenak
patent: 4148709 (1979-04-01), Sze
patent: 4189375 (1980-02-01), Kirby et al.
patent: 4322284 (1982-03-01), Tsai et al.
patent: 4437973 (1984-03-01), Huibers et al.
Comolli Alfred G.
Hippo Edwin J.
Gantz Delbert E.
HRI Inc.
Johnson Lance
Mallare V. A.
LandOfFree
Coal catalytic hydrogenation process using direct coal slurry fe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coal catalytic hydrogenation process using direct coal slurry fe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coal catalytic hydrogenation process using direct coal slurry fe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-565573