Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1991-04-08
1992-08-18
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423230, 423231, 4235731, 4235764, 422199, C01B 1716
Patent
active
051397536
ABSTRACT:
A method and apparatus for removing H.sub.2 S from a process gas, including a reaction chamber between an absorption chamber and an oxidizer chamber, in the polyvalent metal redox catalyzed removal of H.sub.2 S from a process gas. The process and apparatus of the present invention inclues a first gas-liquid mass transfer zone or absorber chamber for intimately containing an H.sub.2 S-containing process gas with an oxidized polyvalent metal redox solution for absorption of the H.sub.2 S; and a reaction chamber in fluid communication with polyvalent metal redox solution exiting the absorption chamber through a valve-controlled cross-flow conduit. Cross flow of solution from the absorber chamber through a valve or other circulation control device to the reaction chamber provides controlled, continuous and sequential gas-liquid contact with two or more different gases in separate absorption, reaction and oxygenation zones within a single or multiple vessels.
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Leslie C. Hardison, "Hydrogen Sulfide: An Alternative To Claus", Chemical Engineering, Jan. 21, 1985.
Ari Technologies, Inc.
Straub Gary P.
Vanoy Timothy C.
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