Sulfur oxides and nitrogen oxides gas treating process

Details Sulfur oxides and nitrogen oxides gas treating process Sulfur oxides and nitrogen oxides gas treating process

1983-12-20

1985-03-12

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423244, 55 73, 55 74, B01J 800, C01B 2100, C01B 1700

Patent

active

045044503

ABSTRACT:
A process is disclosed for treating particle-containing gas streams by removing particles and gaseous atmospheric pollutants. Parallel passage contactors are utilized to remove the gaseous pollutants. The minimum required gas flow rate for effective operation of these contactors is maintained by recycling a variable amount of low temperature gas which has been passed through a particle removal zone. The recycled gas is reheated by heat exchange against a portion of the treated gas.

REFERENCES:
patent: 3501897 (1970-03-01), Van Helden et al.
patent: 3989798 (1976-11-01), Greene et al.
patent: 4122150 (1978-10-01), Hori et al.
patent: 4245569 (1981-01-01), Fallon
Hydrocarbon Processing, Oct. 1981, pp. 115-124, "NO.sub.x Controls in Review", by A. A. Siddiqi and J. W. Tenini.

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