Solvent recovery from sweep gas streams
AssigneeSabic Global Technologies B.V.
InventorsFarooq URAIZEE, Danil TIRTOWIDJOJO, Ramesh RAMESWARAN, Jayachandran CHANDRASEKARAN
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Abstract
A method for removing solvent from a solvent containing sweep gas stream obtained from a fertilizer coating process is disclosed. The method can include directly contacting the solvent containing sweep gas stream with an aqueous composition comprising 50% wt/wt to 100% wt/wt of water, condensing at least a portion of the solvent out of the solvent containing sweep gas stream into the aqueous composition to produce a solvent-enriched aqueous composition and a recovered sweep gas stream, and removing the recovered sweep gas stream from the solvent-enriched aqueous composition.
Claims20
A method for removing solvent from a solvent containing sweep gas stream obtained from a fertilizer coating process, the method comprising:
- (a) directly contacting the solvent containing sweep gas stream with an aqueous composition comprising 50% wt/wt to 100% wt/wt of water;
- (b) condensing at least a portion of the solvent out of the solvent containing sweep gas stream into the aqueous composition to produce a solvent-enriched aqueous composition and a recovered sweep gas stream;
- and
- (c) removing the recovered sweep gas stream from the solvent-enriched aqueous composition.
Dependencies are inferred from the claim text.