Microporous hollow fibers for gas absorption. II. Mass transfer across the membrane

Zhang Qi, E. L. Cussler

Research output: Contribution to journalArticlepeer-review

322 Scopus citations


Microporous hollow fiber modules offer a larger area per volume between gas and liquid than that commonly encountered in packed towers. This larger area can be sustained at very low flows, where packed towers will not be loaded, and at very high flows, where packed towers will flood. As a result, the modules offer the potential of faster mass transfer. This potential can be compromised by the resistance to mass transfer of the membrane itself, a resistance which is increased if the liquid wets the membrane. The results presented in this two-part series show when the advantage of the increased area is greater than the disadvantage of the membrane resistance. In this part, overall mass transfer coefficients are studied, including resistances in both liquid and membrane, and the performance of hollow fibers is compared with that of packed towers.

Original languageEnglish (US)
Pages (from-to)333-345
Number of pages13
JournalJournal of Membrane Science
Issue number3
StatePublished - May 1985

Bibliographical note

Funding Information:
This work was principally supported by the Celanese Corporation. Other support came from the National Science Foundation grants CPE 8207917 and CPE 8408999 and from the Environmental Protection Agency grant 6803-1957.


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