In:
AIChE Journal, Wiley, Vol. 61, No. 6 ( 2015-06), p. 1997-2007
Abstract:
A Mo‐substituted lanthanum tungstate mixed proton‐electron conductor, La 5.5 W 0.6 Mo 0.4 O 11.25−δ (LWM04), was synthesized using solid state reactions. Dense U‐shaped LWM04 hollow‐fiber membranes were successfully prepared using wet‐spinning phase‐inversion and sintering. The stability of LWM04 in a CO 2 ‐containing atmosphere and the permeation of hydrogen through the LWM04 hollow‐fiber membrane were investigated in detail. A high hydrogen permeation flux of 1.36 mL/min cm 2 was obtained for the U‐shaped LWM04 hollow‐fiber membranes at 975°C when a mixture of 80% H 2 −20% He was used as the feed gas and the sweep side was humidified. Moreover, the hydrogen permeation flux did not significantly decrease over 70 h of operation when fed with a mixture containing 25% CO 2 , 50% H 2 , and 25% He, indicating that the LWM04 hollow‐fiber membrane has good stability under a CO 2 ‐containing atmosphere. © 2015 American Institute of Chemical Engineers AIChE J , 61: 1997–2007, 2015
Type of Medium:
Online Resource
ISSN:
0001-1541
,
1547-5905
Language:
English
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
2020333-0
detail.hit.zdb_id:
240008-X
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