Permeation of hydrogen mixture-2 perturbed hydrogen permeation of a hydrogen mixture: New phenomena in hydrogen permeation by Pd-membrane

Min Hon Rei*, Chia Yeh Hung, Shin Chung Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Hydrogen permeation of a hydrogen mixture, H2 + Y with Y= Ar, CO2, CH4, N2 through a palladium membrane was found to be different from the hydrogen permeation of single hydrogen feed in two important aspects. With the hydrogen mixture, the well known Sieverts equation fails to give correct hydrogen flux or permeance even after adjusting the pressure terms with the partial pressure of hydrogen in the mixture; moreover, both flux and permeance are subjected to strong influence of hydrogen concentration in the mixture.Furthermore, the non-hydrogen gas, Y, always leaks through into the permeate side when there is hydrogen permeation through the membrane even though the membrane is defect free and does not allow the Y gas to leak through when the feed contains only the Y-gas alone. The causes of the above observations are speculated.

Original languageEnglish
Title of host publication234th ACS National Meeting, Abstracts of Scientific Papers
StatePublished - 2007
Externally publishedYes
Event234th ACS National Meeting - Boston, MA, United States
Duration: 19 08 200723 08 2007

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Conference

Conference234th ACS National Meeting
Country/TerritoryUnited States
CityBoston, MA
Period19/08/0723/08/07

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