Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Reexamination Certificate
2008-03-04
2008-03-04
Doerrler, William C (Department: 3744)
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
C062S625000, C062S635000
Reexamination Certificate
active
07337631
ABSTRACT:
A process for separating the components of a multi-component gas stream is disclosed. The multi-component gas stream is contacted with a solvent in an extractor at cryogenic temperatures to produce an overhead stream enriched with unabsorbed component(s) and a rich solvent bottoms stream enriched with absorbed component(s). The rich solvent bottoms stream is then flash evaporated to regenerate the lean solvent and to recover the absorbed component(s) as an overhead stream, which is compressed to produce a product stream. The regenerated solvent is recycled to the extractor.
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International Search Report and Written Opinion of the International Searching Authority, Mailed Jun. 22, 2005, For Corresponding PCT Application Serial No. PCT/US2005/007736, filed Mar. 9, 2005.
Advanced Extraction Technologies, Inc.
Doerrler William C
Howrey LLP
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