Process for absorption of sulfur compounds from fluids using pip

Details Process for absorption of sulfur compounds from fluids using pip Process for absorption of sulfur compounds from fluids using pip

1991-05-17

1993-08-17

Lewis, Michael

Gas separation: processes

Liquid contacting

And degasification of a liquid

4232427, 4232426, 210634, 95235, B01D 5334

Patent

active

052366782

ABSTRACT:
Sulfur dioxide is removed from a fluid containing SO.sub.2 by employing as an absorbent for the SO.sub.2 an aqueous solution of a compound represented by Formula I: ##STR1## wherein each Y is independently --(CR.sup.2.sub.2)--or--(CR.sup.2).dbd.and each R.sup.1 or R.sup.2 is independently hydrogen, an alkyl group; an hydroxyalkyl group: an aldehyde group: a carboxylic acid group or salt thereof: an alkyl group containing at least one carboxylic ester, a carboxylic acid or salt thereof, ether, aldehyde, ketone, or sulfoxide group: wherein the compound has at least one carbonyl group. The absorbent solution preferably can be thermally regenerated by heating to remove SO.sub.2.

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