Refrigeration – Processes – Circulating external gas
Patent
1981-08-31
1983-11-08
Sever, Frank
Refrigeration
Processes
Circulating external gas
62 18, 62 38, F25J 302
Patent
active
044140070
ABSTRACT:
A process for the purification of a compressed gas mixture by cooling to low temperatures in cyclical alternated regenerators to condense high-boiling constituents of the gas mixture comprising (1) passing the gas mixture through a first regenerator from the warm end to the cold end of the same; (2) passing a scavenging gas which is at a lower pressure than said gas mixture in the first regenerator through a second regenerator from the cold end to the warm end of the same, (3) passing at least part of the purified gas stream through a third regenerator from the cold end to the warm end of the same, and (4) compressing and recycling at least part of the scavenging gas which has passed through the second regenerator through the first regenerator from the warm end to the cold end and repeating the process as defined above.
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Goodson W. Gary
Sever Frank
United States Steel Corporation
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