Refrigeration – Processes – Circulating external gas
Patent
1993-06-30
1994-09-27
Bennett, Henry A.
Refrigeration
Processes
Circulating external gas
62 22, 62 38, F25J 302
Patent
active
053498240
ABSTRACT:
An apparatus for simultaneously producing both high and low purity oxygen, which contains a double rectification column having therein a lower pressure fractionating column with two reboilers therein, and a higher pressure fractionating column, wherein an intermediate outlet is provided between the two reboilers of the lower pressure fractionating column for extracting a lower purity oxygen stream therefrom, and a high purity liquid oxygen stream from a bottom portion of the column simultaneously.
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Garnier Catherine
Ha Bao
Bennett Henry A.
Kilner Christopher
Liquid Air Engineering Corporation
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