Coal liquefaction and oil upgrading process to obtain maximum yield of distillate
AssigneeEnergy Modification, Inc.
InventorWilliam K. T. Gleim
Life of this patent
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Abstract
A portion of higher O.sub.2 content lignite or brown coal is mixed with bituminous coal to provide exothermic conditions and reduce extraneous heat to the liquefaction reactor. In addition, with a crude oil carrying stream for the coal to the reactor there can be conversion at the controlled heating of 380.degree. to 400.degree. C., and in the presence of H.sub.2 and CO at 100 to 200 atmospheres a maximizing of distillate from the crude and a high conversion of coal to liquified distillate.
Claims5
An improved combined oil upgrading and coal liquefaction process that maximizes the yield of valuable distillate, which comprises:
- (a) combining high oxygen content subdivided lignite type coal with subdivided bituminous coal and with an upgradable liquid petroleum stream characterized as being of the kerosine and heavier range boiling from about 200.degree. C. to 500.degree. C.
- (b) subjecting this solids-liquid stream mixture to controlled heating without going higher than 400.degree. C. to obtain an exothermic decomposition of the lignite and a resulting temperature of the order of 390.degree. C. to 400.degree. C. while in a confined zone with a hydrogen containing atmosphere and at an elevated pressure in the range of from 100 to 200 atmospheres, and
- (c) from the thusly treated mixture recovering a desired distillable fraction, which will include dissolved coal, and also separating a heavy generally non-distillable fraction of undissolved coal and asphaltic material.
Dependencies are inferred from the claim text.