Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Patent
1997-08-12
1998-11-10
Capossela, Ronald C.
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
62920, 62931, F25J 100
Patent
active
058327479
ABSTRACT:
The molar ratio of hydrogen and carbon monoxide in synthesis gas is changed by partially condensing at least a portion of the feed gas and separating the partially condensed feed mixture by non-fractionating phase separation. Preferably, the partially condensed feed mixture is separated by a first phase separation into a first liquid stream and a first vapor stream; the first vapor stream is partially condensed and separated by a second phase separation into a second liquid stream and a second vapor stream; the second vapor stream is warmed and expanded to provide refrigeration and partial condensation; and the expanded partially condensed stream is separated by a third phase separation to provide a third liquid stream and a third vapor stream. The synthesis gas product is at least partially derived from the third liquid stream and a portion of the third vapor stream.
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Bassett John Dollin
McNeil Brian Alfred
Scharpf Eric William
Air Products and Chemicals Inc.
Capossela Ronald C.
Chase Geoffrey L.
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