Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1995-03-15
1997-03-11
Lewis, Michael
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
4232421, 423228, 423226, 4232422, B01D 5350
Patent
active
056098405
ABSTRACT:
This invention relates to methods for the removal of hydrogen sulfide from various gases containing hydrogen sulfide. In order to remove hydrogen sulfide, an aqueous solution containing a di(lower alkyl)amino-(lower alkanol) or triethylenediamine is used. In order to remove hydrogen sulfide selectively from gases containing carbon dioxide and hydrogen sulfide, an aqueous solution containing tert-butyldiethanolamine, triisopropanolamine, triethylenediamine or 2-dimethylamino-2-methyl-1-propanol is used. In order to remove both carbon dioxide and hydrogen sulfide from gases containing carbon dioxide and hydrogen sulfide, an aqueous solution containing a mono(lower alkyl)amino-(lower alkanol) is used.
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Iijima Masaki
Mimura Tomio
Mitsuoka Shigeaki
Shimojo Shigeru
Harding Amy M.
Lewis Michael
Mitsubishi Jukogyo Kabushiki Kaisha
The Kansai Electric Power Co. Inc.
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