Regeneration of ion exchangers that are used for salt removal from acid gas capture plants
First Claim
1. A process for regenerating an ion exchange resin comprising:
- (a) obtaining a solvent solution containing heat stable salts from an amine treater process;
(b) contacting the solvent solution with an anion exchange resin to obtain a heat stable salt lean solvent solution;
(c) periodically regenerating the anion exchange resin, wherein prior to the regeneration of the anion exchange resin, the anion exchange resin is washed with at least a portion of a reflux stream from the amine treater process to produce a heat stable salt lean amine stream; and
,(d) recycling the heat stable salt lean amine to the amine treater process.
2 Assignments
0 Petitions
Accused Products
Abstract
A process for the removal of an amine capturable gas from a feed gas stream using an amine solvent, the process comprises (a) contacting the feed gas stream with a lean amine solvent to form a rich amine solvent, wherein heat stable salts are present in the rich amine solvent; (b) stripping amine capturable gas from the rich amine solvent to form the lean amine solvent and an overhead reflux stream; (c) periodically contacting at least a portion of one or both of the lean amine solvent and the rich amine solvent with an anion exchange resin to form a first heat stable salt lean amine solvent; (d) periodically regenerating the anion exchange resin, wherein during the regeneration of the anion exchange resin, at least a portion of the reflux stream is used to wash the amine solvent from the anion exchange resin to produce a second heat stable salt lean amine solvent; and, (e) recycling at least a portion of the first and the second heat stable salt lean amine solvent for use in capturing the amine capturable gas from the feed gas.
-
Citations
16 Claims
-
1. A process for regenerating an ion exchange resin comprising:
-
(a) obtaining a solvent solution containing heat stable salts from an amine treater process; (b) contacting the solvent solution with an anion exchange resin to obtain a heat stable salt lean solvent solution; (c) periodically regenerating the anion exchange resin, wherein prior to the regeneration of the anion exchange resin, the anion exchange resin is washed with at least a portion of a reflux stream from the amine treater process to produce a heat stable salt lean amine stream; and
,(d) recycling the heat stable salt lean amine to the amine treater process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
Specification