Possible air separations with superconducting membranes

Ryan D. Gordon, Edward L Cussler Jr

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Permeabilities of oxygen, nitrogen and helium across porous, superconducting membranes with 5-μm pores are consistent with those across nonsuperconducting membranes with well-defined pores of similar sizes. This is true both at ambient and superconducting temperatures. Transport can occur by Knudsen diffusion, Poiseuille flow, capillary condensation, and turbulent flow. There is no evidence of surface diffusion. Theoretical considerations of superconducting membranes are consistent with these results, indicating when superconductivity might play a role. However, past reports concerning air separation with superconducting membranes with these micrometer-sized pores are questionable.

Original languageEnglish (US)
Pages (from-to)2313-2325
Number of pages13
JournalAIChE Journal
Issue number11
StatePublished - Nov 1999


Dive into the research topics of 'Possible air separations with superconducting membranes'. Together they form a unique fingerprint.

Cite this