Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Patent
1991-12-05
1994-03-08
Page, Thurman K.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
210681, 210683, 210685, 521 26, C01B 1716, C01B 3120, C02F 142
Patent
active
052924939
ABSTRACT:
The present invention provides a process for removing heat stable salts which accumulate in alkanolamine gas purification process units. Surprisingly, it has been found that weakly acidic cationic exchange resins are dramatically more effective for removing heat stable salts from alkanolamine solutions than strongly acidic cationic exchange resins.
Specifically, it has been found in accordance with the invention that ion exchange resins are useful for purifying used aqueous alkanolamine solutions, in the following order of preference: Weak Acid IX>Weak Base IX>Strong Acid IX>Strong Base IX.
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Heat-Stable Salt Removal From Amines By The HSSX Process Using Ion Exchange By: A. E. Keller et al., Presented Mar. 2, 1992 to The Laurence Reid Gas Conditioning Conference.
Audeh Costandi A.
Yan Tsoung Y.
Furr Jr. Robert B.
Kulkosky Peter F.
McKillop Alexander J.
Mobil Oil Corporation
Page Thurman K.
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