Process for reducing sulfur in coal char

Details Process for reducing sulfur in coal char Process for reducing sulfur in coal char

1974-10-07

1976-07-20

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

48210, 201 17, C10L 910, C10J 300, C10B 5700

Patent

active

039704343

ABSTRACT:
Coal is gasified in the presence of a small but effective amount of alkaline earth oxide, hydroxide or carbonate to yield a char fraction depleted in sulfur. Gases produced during the reaction are enriched in sulfur compounds and the alkaline earth compound remains in the char fraction as an alkaline earth oxide. The char is suitable for fuel use, as in a power plant, and during combustion of the char the alkaline earth oxide reacts with at least a portion of the sulfur oxides produced from the residual sulfur contained in the char to further lower the sulfur content of the combustion gases.

REFERENCES:
patent: 3463623 (1969-08-01), Forney et al.
patent: 3640016 (1972-02-01), Lee et al.
patent: 3756791 (1973-09-01), Mancke

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