Method for separation of acid pollution gas

Details Method for separation of acid pollution gas Method for separation of acid pollution gas

1985-12-02

1988-08-30

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423235, 423240, 423244, 423420, 423424, B01J 800, C01B 1700, C01B 700, C01P 700

Patent

active

047676051

ABSTRACT:
Method and apparatus for separating at least one harmful substance such as SO.sub.2, HCl or NO.sub.x where x is 1 or 2, from combustion exhaust gases containing the same. The exhaust gases are contacted with at least one particulate adsorbent which, at a release temperature below 400.degree. C., releases at least one of water, ammonia, or carbon dioxide, for reaction with the harmful substances. This reactant leaves the adsorbent in activated condition. Thus, the reactant and activated adsorbent serve to remove harmful substances from the flowing exhaust gas.

REFERENCES:
patent: 3826816 (1974-07-01), McCormick
patent: 3846535 (1974-11-01), Fonseca
patent: 3852410 (1974-12-01), Rivers et al.
patent: 3880618 (1975-04-01), McCrea et al.
patent: 4080428 (1978-03-01), Holter et al.
patent: 4481172 (1984-11-01), Lowell et al.
Karlsson et al., Activated Wet-Dry Scrubbing of SO.sub.2 Journal of Air-Pollution Control Ass., Jan. 1983, vol. 33, No. 1 pp. 23-28.

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