Method of removing sulfur from coal

Details Method of removing sulfur from coal Method of removing sulfur from coal

1976-01-22

1978-01-31

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

201 17, C10L 910, C10B 5700

Patent

active

040713288

ABSTRACT:
A process of reducing the total sulfur content of coal is disclosed. The process comprises hydrogenating the coal to remove at least a portion of the recoverable sulfur combined as pyritic sulfur. The hydrogenated coal is subsequently contacted with a sufficient amount of an aqueous inorganic acid solution to remove at least a portion of the remaining sulfur initially combined as pyritic sulfur.

REFERENCES:
patent: 2057486 (1936-10-01), Higgins
patent: 2726148 (1955-12-01), McKinley et al.
patent: 3214346 (1965-10-01), Mason et al.
patent: 3393978 (1968-07-01), Murphy et al.
patent: 3926575 (1975-12-01), Meyers

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