Method for purifying amine gas sweetening systems by addition of

Details Method for purifying amine gas sweetening systems by addition of Method for purifying amine gas sweetening systems by addition of

1990-09-25

1994-07-05

Stoll, Robert L.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

B01D 5334

Patent

active

H00013277

ABSTRACT:
A method for removing dissolved solids or sludge from amine absorbing solutions for acidic gas in gas sweetening systems is provided comprising contacting a stream of regenerated absorbing solution with CO.sub.2 such that the sludge forms a precipitate and removing the precipitate from the absorbing solution. The stream of absorbing solution may then be returned to a regenerator for removal of CO.sub.2 or returned to the gas sweetening system with the regenerated absorbing solution.

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