Mineral oils: processes and products – Phenolic or toxic oils
Patent
1978-12-13
1980-02-19
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
208 10, C10G 100, C10G 108
Patent
active
041893751
ABSTRACT:
A process for liquefying coal involving heating only a portion of a the total process hydrogen stream to increase its temperature to a relatively high level and admixing said heated hydrogen with only a portion of the total coal slurry in the upstream region of a dissolver zone. The hydrogen stream has a relatively low specific heat and the addition thereto of a relatively small amount of heat increases its temperature to a level which is sufficiently high to initiate hydrocracking reactions when the hot hydrogen stream is intermixed with only a portion of the dissolver feed slurry, provided that the dissolver feed slurry contains recycle mineral residue in an amount adequate to catalyze hydrocracking reactions. Because the recycle mineral residue catalyzes the exothermic hydrocracking reactions, sufficient process heat is generated to permit addition to the dissolver zone in a downstream region thereof the remainder of dissolver feed slurry and process hydrogen in a relatively cool condition.
REFERENCES:
patent: 3791957 (1974-02-01), Wolk
patent: 3823084 (1974-07-01), Schroeder
Kirby Lawrence J.
Richardson Thomas E.
Schmid Bruce K.
Ward John V.
Gantz Delbert E.
Gulf Oil Corporation
Wright William G.
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