Adsorption process producing chronologically constant amount of

Details Adsorption process producing chronologically constant amount of Adsorption process producing chronologically constant amount of

1980-07-23

1982-02-16

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 25, 55 58, 55 62, 55161, 55179, 55387, B01D 5304

Patent

active

043157599

ABSTRACT:
An adsorption process for purifying or fractionating a gaseous feed mixture comprises an adsorption phase, at least one expansion phase, a purging phase and at least one pressure build-up phase. The expansion phase(s) and the purging phase produce residual process gas fractions. The sum total of volume, and/or mass streams of the residual process gas fractions comprises a residual gas stream which is maintained chronologically substantially constant by controlling the volume and/or gas streams of the gas entering the purging phase and maintaining the gas leaving the expansion phase(s) at a substantially constant value, dependent on the desired mass and/or volume quantity of the residual gas stream. The length of the purging phase and of the expansion phase(s) is adjusted accordingly so that the relationship of the length of time of the purging phase to the length of time of the expansion phase(s) is substantially the same as the relationship of the volume and/or mass of the gas fractions obtained during the purging to those obtained during the expansion phase(s), respectively. The control of the purging and of the expansion phase(s) can also be varied in response to a flow rate of a feed gas entering the process.

REFERENCES:
patent: 3703068 (1972-11-01), Wagner
patent: 3775946 (1973-12-01), Brazzel
patent: 4101298 (1978-07-01), Myers et al.
patent: 4197095 (1980-04-01), White, Jr. et al.
patent: 4234322 (1980-11-01), De Meyer et al.

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