Removal of sulfur compounds from gas streams

Details Removal of sulfur compounds from gas streams Removal of sulfur compounds from gas streams

1974-02-04

1976-04-06

Wyse, Thomas G.

Gas separation

Means within gas stream for conducting concentrate to collector

55 75, B01D 5300

Patent

active

039486249

ABSTRACT:
The sulfur trioxide, sulfuric acid vapor and sulfuric acid mist content of the effluent gas stream from a contact process sulfuric acid absorber are substantially decreased by pre-treating the gas stream prior to its passage through a conventional mist eliminator. The treatment steps include cooling the absorber effluent to below 100.degree.F and contacting same with aqueous sulfuric acid in a particular concentration range and thereafter maintaining the gas phase in the mist eliminator saturated with respect to H.sub.2 SO.sub.4 vapor.

REFERENCES:
patent: 3100146 (1963-08-01), Huntington
patent: 3577706 (1971-05-01), Moller
J. A. Brink, Jr. et al., Mist Eliminators for Sulfuric Acid Plants, Chemical Engineering Progress, Vol. 64, No. 11 (pp. 82-86), Nov. 1968.
Molecular Sieves -- Processing Tool of the Future?, "The Refining Engineer, (P.C.-53), Feb. 1957.

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