Gas transfer process with hollow fiber membrane

Details Gas transfer process with hollow fiber membrane Gas transfer process with hollow fiber membrane

1979-06-06

1981-05-19

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55158, 2103213, 422 48, B01D 1300, B01D 5322

Patent

active

042682797

ABSTRACT:
A process which comprises allowing a liquid to contact with the inside of a microporous hollow fiber and a fluid to contact with the outside, thereby allowing the gaseous components contained in both fluids to transfer between said liquid and said fluid. For use in the process, the inner diameter of the hollow fiber should be 50 to 5,000.mu. and the wall membrane should have an average micropore diameter of 0.01 to 0.5.mu., a porosity of 10 vol.-% or more, a micropore surface area of 5 m.sup.2 /g or more, and an oxygen permeability of 10.sup.-6 cm.sup.3 (STP).multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg or more. In cases where the liquid is water or a liquid substance with aqueous medium, the process can be used effectively in artificial lung units or the like by using a hollow fiber of a polyolefin or a fluorinated polyolefin.

REFERENCES:
patent: 2972349 (1961-02-01), DeWall
patent: 3342729 (1967-09-01), Strand
patent: 3526481 (1970-09-01), Rubricius
patent: 3567666 (1971-03-01), Berger
patent: 3631654 (1972-01-01), Riely et al.
patent: 3651616 (1972-03-01), Blanchard et al.
patent: 3651618 (1972-03-01), Klein et al.
patent: 3794468 (1974-02-01), Leonard
patent: 3803810 (1974-04-01), Rosenberg
patent: 3953566 (1976-04-01), Gore
patent: 4031012 (1977-06-01), Gics

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