Process for selectively separating gaseous mixtures containing w

Details Process for selectively separating gaseous mixtures containing w Process for selectively separating gaseous mixtures containing w

1989-01-26

1989-10-24

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 68, B01D 5322

Patent

active

048759082

ABSTRACT:
A process for selectively separating water vapor from a multiple component gaseous mixture is provided. The process comprises passing a multicomponent gaseous mixture including water vapor along and in contact with a membrane which is selectively permeable to water vapor and wherein the water vapor permeation rate Q.sub.H.sbsb.2.sub.O is greater than 30 Nm.sup.3 /m.sup.2 .multidot.hr.multidot.atm at 25.degree. C. and the ratio of Q.sub.H.sbsb.2.sub.O to the permeation rate Q.sub.G of the gas to be separated from the water vapor, i.e., Q.sub.H.sbsb.2.sub.O Q.sub.G, is greater than 10,000. The membrane preferably has a thickness of about 0.1 microns to about 50 microns.

REFERENCES:
patent: 3735558 (1973-05-01), Skarstrom et al.
patent: 3735559 (1973-05-01), Salemme
patent: 3738813 (1973-06-01), Esmond
patent: 4497640 (1985-02-01), Fournie et al.
patent: 4515761 (1985-05-01), Plotzker
patent: 4612019 (1986-09-01), Langhorst
patent: 4732586 (1988-03-01), Dick et al.
patent: 4741744 (1988-05-01), Wu et al.
patent: 4783201 (1988-11-01), Rice et al.

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