Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1973-07-23
1976-11-02
Vertiz, Oscar R.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
B01J 800, C01B 1700
Patent
active
039897982
ABSTRACT:
Flue gas is desulfurized by absorbing it onto a selective absorbent-catalytic material. The absorbed SO.sub.2 is recovered by contacting it in a desorption cycle with a reducing desorption gas. In one embodiment, multiple absorbent beds are employed and alternate absorption-desorption cycles are used in each of the multiple beds with the flue gas and the desorption gas used alternately. The sulfur oxide is recovered in concentrated form in the desorption gas stream and is then utilized as feed in a conventional sulfuric acid plant yielding concentrated sulfuric acid.
REFERENCES:
patent: 3411865 (1968-11-01), Pijpers
patent: 3454356 (1969-07-01), Raman
patent: 3501897 (1970-03-01), Van Helden et al.
Greene David F.
Lang Robert J.
Welty, Jr. Albert B.
Exxon Research and Engineering Company
Heller Gregory A.
Hoover Wayne
Kreek, Jr. Louis F.
Vertiz Oscar R.
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