Hydrolysis of carbon oxysulfide
AssigneeThe Dow Chemical Company
InventorsJohn W. Bozzelli, Donald N. Bremer, George D. Shier
Life of this patent
Estimating the term…
Abstract
The hydrolysis of carbon oxysulfide is catalyzed by piperazinone and alkyl-substituted piperazinones at ambient or below ambient temperatures. The hydrolysis step can be combined with a sour gas purification process in the treatment of refinery gases, coal gasification streams, and other such gases which contain COS and other acidic contaminants.
Claims9
A process for hydrolyzing COS to H.sub.2 S and CO.sub.2 which comprises contacting a COS-containing gas with an aqueous piperazinone compound solution, said piperazinone compound having the formula ##STR2## wherein R', R", and each R is independently a hydrogen atom or an alkyl group of 1-5 carbon atoms.
Dependencies are inferred from the claim text.