Cryogenic rectification system with prepurifier feed chiller

Details Cryogenic rectification system with prepurifier feed chiller Cryogenic rectification system with prepurifier feed chiller

1993-05-10

1994-06-21

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 24, 62 39, F25J 300

Patent

active

053219538

ABSTRACT:
A cryogenic rectification system wherein excess pressurized fluid produced in a cryogenic rectification plant is turboexpanded and used to chill feed prior to passing the feed through a prepurifier for removal of at least some of the high boiling component of the feed.

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H. Cheung et al., "Efficiently Produce Ultra-High Purity Nitrogen On-Site", Chemical Engineering Progress, Oct., 1991.
T. Hardenburger, "Producing Nitrogen At The Point Of Use", Chemical Engineering, Oct., 1992, pp. 136-146.

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