Process for scrubbing gas streams

Details Process for scrubbing gas streams Process for scrubbing gas streams

1975-11-10

1977-01-04

Lutter, Frank W.

Gas separation

Means within gas stream for conducting concentrate to collector

55 89, B01D 4706

Patent

active

040009939

ABSTRACT:
In a process for scrubbing contaminant gas and/or solids and/or liquids from a gas stream by diffusiophoretic action hydrogen chloride is used as the diffusiophoretic scrubbing component. The hydrogen chloride may be used per se, may be formed in situ, or may be obtained from fuming hydrochloric acid. Certain contaminants may require the use of formaldehyde to combine with them and produce an easily-removable compound. The scrubbing liquid is usually water, although an alkaline solution may be employed to neutralize the acid. The process has high efficiency with very fine particles (less than 1 micron), odours and sub-micron smokes.

REFERENCES:
patent: 2127571 (1938-08-01), Pardee, Jr.
patent: 3284992 (1966-11-01), Wikman
patent: 3690041 (1972-09-01), Low
patent: 3789109 (1974-01-01), Lyon et al.
patent: 3807139 (1974-04-01), Di Fiore et al.
patent: 3844879 (1974-10-01), Flais et al.
patent: 3870082 (1975-03-01), Holl

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