Removal of sulfur and nitrogen oxides with aqueous absorbent

Details Removal of sulfur and nitrogen oxides with aqueous absorbent Removal of sulfur and nitrogen oxides with aqueous absorbent

1974-01-11

1978-04-25

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423242, C01B 2100, C01B 1700

Patent

active

040863247

ABSTRACT:
Sulfur oxides and nitrogen oxides are removed from flue gas by scrubbing the flue gas with an aqueous ammoniacal solution containing ammonium thiosulfate and either ammonium sulfite or ammonium hydroxide. The presence of ammonium thiosulfate in the absorbent solution also inhibits the oxidation of sulfur dioxide to hexavalent sulfur. The scrubber effluent solution or a portion thereof is acidified in order to liberate sulfur dioxide in a concentrated stream.

REFERENCES:
patent: 1795121 (1931-03-01), Hansen
patent: 2405747 (1946-08-01), Hixson et al.
patent: 3635820 (1972-01-01), Urban
patent: 3644087 (1972-02-01), Urban
patent: 3645671 (1972-02-01), Griffin, Jr. et al.
patent: 3676059 (1972-07-01), Welty, Jr.
patent: 3695829 (1972-10-01), Griffin, Jr. et al.
patent: 3728433 (1973-04-01), Urban

Affiliated with

Also associated with

Rating

Removal of sulfur and nitrogen oxides with aqueous absorbent does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2420423