Hydrostatic method employing PSA vent gas pressure for vacuum re

Details Hydrostatic method employing PSA vent gas pressure for vacuum re Hydrostatic method employing PSA vent gas pressure for vacuum re

1987-06-26

1988-07-19

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 58, 55 70, 55 73, 55 75, 55179, 55189, 55389, B01D 5304

Patent

active

047582529

ABSTRACT:
This invention relates to an energy efficient method of vacuum regenerating an adsorbent bed. In a typical process, the adsorbent bed undergoes an adsorption step, a vent step, and a vacuum purge step. According to the present invention, the energy of the usually discarded vent gas is used to raise a dense liquid from a lower tank to a higher tank. The potential energy of the raised liquid, upon returning from the higher tank to the lower tank, is used to generate a vacuum for vacuum regeneration of the adsorbent bed.

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