Absorption of sulfur oxides from hot gases

Details Absorption of sulfur oxides from hot gases Absorption of sulfur oxides from hot gases

1975-11-24

1980-04-15

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

C01B 1700

Patent

active

041983807

ABSTRACT:
A process for removing sulfur oxides from a hot gas by sequential absorption of the sulfur oxides in two zones. In each zone the hot gas is contacted with an aqueous scrubbing medium which may be a solution or slurry containing an absorbent for the sulfur oxides. The absorbent is selected from the group consisting of alkali metal carbonates, bicarbonates and mixtures thereof. The preferred absorbent is sodium carbonate. The aqueous solution is introduced into the first zone in an amount to produce (1) a dry powder reaction product containing alkali metal sulfites, and sulfates, substantially free of unreacted absorbent and (2) a substantially water-unsaturated gaseous reaction product of reduced sulfur oxide content. The gaseous reaction product of reduced sulfur oxide content is transferred into the second zone where it is contacted with a sufficient amount of an aqueous solution of absorbent to provide (1) a gaseous reaction product substantially free of sulfur oxide and (2) an aqueous solution containing alkali metal sulfites, sulfates and unreacted absorbent, which solution is used as at least a part of the aqueous solution fed into the first zone.

REFERENCES:
patent: 1271899 (1918-07-01), Howard
patent: 3533748 (1970-10-01), Finfer et al.
patent: 3929968 (1975-12-01), Taub
patent: 3969482 (1976-07-01), Teller
SO.sub.2 Removal Without Sludge, Rockwell International Publication, 1974. _

Affiliated with

Also associated with

Rating

Absorption of sulfur oxides from hot gases does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Absorption of sulfur oxides from hot gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absorption of sulfur oxides from hot gases will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-475850