Glass frit sealing method for macroscopic defects in Pd-based composite membranes with application in catalytic membrane reactors
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- 作者：Sean-Thomas B. Lundin ; John O. Law ; Neil S. Patki ; Colin A. Wolden ; J. Douglas Way ; dway@mines.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Palladium (Pd) composite membrane ; Defect repair ; Glass frit seal ; Ammonia decomposition ; Catalytic membrane reactor
- 刊名：Separation and Purification Technology
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：172
- 期：Complete
- 页码：68-75
- 全文大小：1024 K
文摘
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1 mm defects in thin-film Pd membrane repaired via glass frit and water mixture.
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Frit seal stable over 10 thermal cycles to 520 °C, despite difference in CTE.
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Long-term (>150 h) stability observed in H2 within 40 °C of frit softening point.
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Presence of steam degrades seals at 520 °C, but stable performance seen at 400 °C.
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Stable (>150 h) NH3 decomposition with high conversion (98%) and H2 purity (>99%).