Coal liquefaction bottoms conversion by coking and gasification

Details Coal liquefaction bottoms conversion by coking and gasification Coal liquefaction bottoms conversion by coking and gasification

1976-09-30

1977-11-29

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

48197R, 201 20, 208106, C10G 104, C01B 118

Patent

active

040604780

ABSTRACT:
Heavy bottoms produced by the liquefaction of coal or similar carbonaceous solids are converted into more valuable products by adding an alkaline earth metal compound to the bottoms in a concentration sufficient to give, following pyrolysis of the bottoms, an alkaline earth metal-to-carbon atomic ratio of from about 0.005:1 to about 0.1:1; pyrolyzing the bottoms at a temperature of from about 900.degree. to about 1600.degree. F. to produce gases, hydrocarbon liquids and coke or char containing added alkaline earth metal constituents; and thereafter gasifying the char with steam.

REFERENCES:
patent: 3617513 (1971-11-01), Wilson et al.
patent: 3689240 (1972-09-01), Aldridge et al.
patent: 3726784 (1973-04-01), Correa et al.
patent: 3740193 (1973-06-01), Aldridge et al.
patent: 3803023 (1974-04-01), Hamner
patent: 3948759 (1976-04-01), King et al.
patent: 3957620 (1976-05-01), Fukui et al.

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