Process for desulfurization of coal

Details Process for desulfurization of coal Process for desulfurization of coal

1979-10-01

1981-03-17

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

201 17, C10L 902, C10B 5708

Patent

active

042564646

ABSTRACT:
Coal is oxidized by NO.sub.x in the presence of a liquid in which NO.sub.x is soluble. Oxidized sulfur species are removed by washing with water and dilute sulfuric acid. NO.sub.x is not consumed in the process and is recycled. More than 70% of sulfur in coal is removed.

REFERENCES:
patent: 2726148 (1955-12-01), McKinley et al.
patent: 2814588 (1957-11-01), Hutchings
patent: 3184397 (1965-05-01), Work et al.
patent: 3214346 (1965-10-01), Mason et al.
patent: 3393978 (1968-07-01), Murphy et al.
patent: 3909211 (1975-09-01), Diaz et al.
patent: 3960513 (1976-06-01), Agarwal et al.
patent: 4134737 (1979-01-01), Yang

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