Mineral oils: processes and products – Phenolic or toxic oils
Patent
1975-08-07
1979-12-18
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
C10G 100
Patent
active
041793528
ABSTRACT:
A hydrogenated liquid product is obtained from coal by treating the feed coal with hydrogen-containing gas and a hydrogen-donor solvent in a coal liquefaction reactor, separating the liquefaction reactor product into a vaporous fraction and a normally liquid hydrocarbon fraction, treating the vaporous fraction for the removal of ammonia and acid gases, fractionating the normally liquid hydrocarbon fraction to obtain a distillate fraction and a bottoms fraction boiling above about 1000.degree. F., and thereafter introducing the treated vaporous fraction and at least a portion of the distillate fraction, along with fresh hydrogen, into a catalytic solvent hydrogenation reactor for the production of solvent and additional product liquids. The hydrogenated product is separated into a recycle vapor stream and a liquid stream which is subsequently fractionated to produce naphtha, recycle solvent, additional liquid products, and a bottoms fraction which can be upgraded by hydrogenation, coking, catalytic cracking or the like. This process results in improved catalyst life and activity in the solvent hydrogenation reactor, reduces the gas input to the hydrogenation reactor, reduces the necessity for purging gas from the system, and has other advantages.
REFERENCES:
patent: 3505203 (1970-04-01), Nelson
patent: 3645885 (1972-02-01), Harris et al.
patent: 3700583 (1972-10-01), Salamony et al.
patent: 3726784 (1973-04-01), Correa et al.
patent: 3726785 (1973-04-01), Keller et al.
Exxon Research & Engineering Co.
Gantz Delbert E.
Reed J. E.
Wright William G.
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