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

Bahman Elyassi; Xueyi Zhang; Michael Tsapatsis

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

Bahman Elyassi, Xueyi Zhang, Michael Tsapatsis

Chemical Engineering and Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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 language	English (US)
Title of host publication	11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
State	Published - Dec 1 2011
Event	2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States Duration: Oct 16 2011 → Oct 21 2011

Publication series

Name	11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings

Other

Other	2011 AIChE Annual Meeting, 11AIChE
Country/Territory	United States
City	Minneapolis, MN
Period	10/16/11 → 10/21/11

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title = "Long-term steam stability of MCM-22 and ITQ-1",

abstract = "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.",

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N2 - 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.

AB - 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.

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T2 - 2011 AIChE Annual Meeting, 11AIChE

Y2 - 16 October 2011 through 21 October 2011

ER -

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

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