Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1977-03-18
1978-09-05
Thomas, Earl C.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
423228, 423243, B01D 5334
Patent
active
041120493
ABSTRACT:
Hydrogen sulfide and lower alkyl mercaptans are selectively extracted from a gas stream by contacting the stream with piperazinone or an alkyl substituted piperazinone which may contain a substantial proportion of water. The absorbed sulfur compounds can be regenerated by heating the extraction liquid to about 85.degree.-150.degree. C.
REFERENCES:
patent: 2649450 (1973-08-01), Strong et al.
Bozzelli John W.
Martin Charles W.
Pearce Roscoe L.
Shier George D.
Baker G. R.
The Dow Chemical Company
Thomas Earl C.
Thurston D. H.
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