Process for single-step coal liquefaction

Details Process for single-step coal liquefaction Process for single-step coal liquefaction

1988-09-29

1990-11-06

Davis, Curtis R.

Mineral oils: processes and products

By treatment of solid mineral, e.g., coal liquefaction, etc.

With hydrogen production from water

208419, 208421, 208433, C10G 106

Patent

active

049684140

ABSTRACT:
A process for the single-step coal liquefaction is disclosed, which comprises reacting the coal in an aqueous suspension with carbon monoxide in the presence of a CO-conversion catalyst selected from an alkaline hydroxide or carbonate, wherein the reaction takes place at a temperature maintained for a time of up to about 20 minutes equal to a value selected within the range of from about 300.degree. to 370.degree. C., and then is increased over a time within the range of from about 20 to 40 minutes, until a temperature value is reached, within the range of from about 420.degree. to 450.degree. C. and is kept constant for a time of up to about 20 minutes.

REFERENCES:
patent: 3642607 (1972-02-01), Seitzer
patent: 3796650 (1974-03-01), Urban
patent: 3930984 (1976-01-01), Pitchford
patent: 4128471 (1978-12-01), Malone et al.
patent: 4486293 (1984-12-01), Garg

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