期刊
AICHE JOURNAL
卷 65, 期 3, 页码 1088-1096出版社
WILEY
DOI: 10.1002/aic.16491
关键词
hydrogen separation; oxygen-permeable membranes; membrane reactor; conductivity; CO2 and H2S impurities
资金
- National Natural Science Foundation of China [91545202, 21776267]
- Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) [XDB17000000]
- project of Dalian Outstanding Young Scientific and Technical Talents [2016RJ07]
- Dalian National Laboratory for Clean Energy (DNL), CAS
- DICPQIBEBT [UN201708]
- DICP [DMTO201503]
Catalytic membrane reactors based on oxygen-permeable membranes are recently studied for hydrogen separation because their hydrogen separation rates and separation factors are comparable to those of Pd-based membranes. New membrane materials with high performance and good tolerance to CO2 and H2S impurities are highly desired. In this work, a new membrane material Ce0.85Sm0.15O1.925-Sr2Fe1.5Mo0.5O6-delta (SDC-SFM) was prepared for hydrogen separation. It exhibits high conductivities at low oxygen partial pressures, which is benefit to electron transfer and ion diffusion. A high hydrogen separation rate of 6.6 mL cm(-2) min(-1) was obtained on a 0.5-mm-thick membrane coated with Ni/SDC catalyst at 900 degrees C. The membrane reactor was operated steadily for 532 h under atmospheres containing CO2 and H2S impurities. Various characterizations reveal that SDC-SFM has good stability in the membrane reactor for hydrogen separation. All facts confirm that SDC-SFM is promising for hydrogen separation in practical applications. (c) 2018 American Institute of Chemical Engineers
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