Back to results
US 2010/0144908 A1Published application
Process for the regeneration of an ion exchange resin using sulfurous acid
AssigneeCansolv Technologies Inc.
InventorsMatthew Campbell, John Sarlis, Vijay Bhambhani Godhwani, Melina Infantino
Life of this patent
Estimating the term…
Abstract
A diamine absorbent that contains heat stable salts is regenerated using an ion exchange process wherein the cation exchange resin is regenerated using sulfurous acid reflux.
Claims21
A process for the regeneration of an acidic cation exchange resin used to treat an acid gas absorbent stream comprising at least one alkali metal salt, the process comprising:
- (a) obtaining the acid gas absorbent stream from an acid gas recovery unit;
- (b) contacting the acid gas absorbent stream with an acidic cation exchange resin and generating a cation reduced acid gas absorbent stream;
- and,
- (c) regenerating the acidic cation exchange resin using a sulfurous acid reflux obtained from the acid gas recovery unit and producing a spent regeneration stream.
1 more element
Dependencies are inferred from the claim text.