Long-term steam stability of MCM-22 and ITQ-1

Bahman Elyassi, Xueyi Zhang, Michael Tsapatsis

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Recently, we have shown MCM-22 zeolite as a potential membrane material candidate for hydrogen separation. For hydrogen separation or ultimately integration of hydrogen permselective membranes into membrane reactors for hydrogen production, long-term hydrothermal stability of the membrane is of vital importance. To shed light on the effect of steam on the structural changes of MWW, MCM-22 and its siliceous form (ITQ-1) were exposed to a mixture of steam and nitrogen at relevant conditions to steam methane reforming and water-gas-shift reactions. Behavior of these materials was monitored every 21 days for a total of 84 days using XRD, SEM, TEM and NMR analyses. We will discuss zeolite structural changes as the result of this treatment.

Original languageEnglish (US)
Title of host publication11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
StatePublished - Dec 1 2011
Event2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States
Duration: Oct 16 2011Oct 21 2011

Publication series

Name11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings


Other2011 AIChE Annual Meeting, 11AIChE
Country/TerritoryUnited States
CityMinneapolis, MN


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