Process to produce a krypton/xenon enriched stream directly from

Details Process to produce a krypton/xenon enriched stream directly from Process to produce a krypton/xenon enriched stream directly from

1993-02-16

1994-05-24

Bennet, Henry A.

Refrigeration

Processes

Circulating external gas

62 18, 62 24, 62 27, F25J 304

Patent

active

053138023

ABSTRACT:
A process is set forth for producing a krypton/xenon enriched stream directly from the main air distillation column in a cryogenic air separation process. A column bypass is suggested in the bottom few trays of the low pressure column in order to concentrate krypton and xenon in the sump while rejecting the majority of methane in the gaseous oxygen product.

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patent: 4568528 (1986-02-01), Cheung
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patent: 5067976 (1991-11-01), Agrawal et al.
patent: 5069698 (1991-12-01), Cheung et al.
patent: 5122173 (1992-06-01), Agrawal et al.

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