Abatement of high concentrations of acid gas emissions

Details Abatement of high concentrations of acid gas emissions Abatement of high concentrations of acid gas emissions

1974-04-25

1976-07-13

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423239, 423240, 423242, 423244, 4232155, 55 71, 55 73, B01D 5334

Patent

active

039694828

ABSTRACT:
A process is disclosed for the large-scale abatement of acid gases in hot industrial effluent gas streams. In a first stage, the proportion of acid gases in a hot gas stream containing a relatively high initial concentration of acid gases is substantially reduced by contacting the gas stream with an aqueous solution or slurry of a basic material capable of reacting with the acid gases under such conditions that a dry salt is left as the reaction product. In subsequent steps, particulate material and residual acid gases are removed from the gas stream either: 1) by introducing into the gas stream a particulate material capable of sorbing acid gases followed by a particulate removal step; or, 2) by using a wet scrubber.

REFERENCES:
patent: 2231309 (1941-02-01), Weber
patent: 2813000 (1957-11-01), Quittenton
patent: 3324630 (1967-06-01), Teller et al.
patent: 3808774 (1974-05-01), Teller
patent: 3851042 (1974-11-01), Minnick

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