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	Effects of membrane thickness and structural type on the hydrogen separation performance of oxygen-permeable membrane reactors
	Li, Wenping; Cao, Zhongwei; Zhu, Xuefeng; Yang, Weishen
刊名	Journal of membrane science
	2019-03-01
卷号	573页码:370-376
关键词	Oxygen-permeable ceramic membrane reactor Hydrogen separation Thickness Structural type
ISSN号	0376-7388
DOI	10.1016/j.memsci.2018.12.005
通讯作者	Zhu, xuefeng(zhuxf@dicp.ac.cn) ; Yang, weishen(yangws@dicp.ac.n)
英文摘要	Membrane thickness and structural type, which are closely related to the species diffusion in the membrane bulk and reactions at the gas-solid interfaces, have important influences on the performance of a dense ceramic membrane. recently, oxygen-permeable dense ceramic membrane reactors have been suggested for hydrogen purification at elevated temperatures. mixed conducting composite with composition of 75 wt% ce0.85sm0.15o2-delta-25 wt% sm0.6sr0.4al0.3fe0.7o3-delta (sdc-ssaf) was fabricated into oxygen-permeable membranes with different thicknesses and structural types. the effects of membrane thickness and structural type on the hydrogen separation performance were tested under different hydrogen concentrations and flow rates on side i, different flow rates of steam/he mixed gas on side ii as well as different temperatures. the effect of concentration polarization on hydrogen separation rate and the rate determining steps were discussed by comparing the performances of the symmetric membranes and the asymmetric membranes. the apparent activation energies of the membrane reactors for hydrogen separation were analyzed. this study will give some constructive guides to the subsequent work on how to effectively improve the hydrogen separation performance.
WOS关键词	HOLLOW-FIBER MEMBRANES ; PERMEATION BEHAVIOR ; CERAMIC MEMBRANES ; PARTIAL OXIDATION ; STABILITY ; METHANE
WOS研究方向	Engineering ; Polymer Science
WOS类目	Engineering, Chemical ; Polymer Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000454830600038
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2372913
专题	大连化学物理研究所
通讯作者	Zhu, Xuefeng; Yang, Weishen
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Li, Wenping,Cao, Zhongwei,Zhu, Xuefeng,et al. Effects of membrane thickness and structural type on the hydrogen separation performance of oxygen-permeable membrane reactors[J]. Journal of membrane science,2019,573:370-376.
APA	Li, Wenping,Cao, Zhongwei,Zhu, Xuefeng,&Yang, Weishen.(2019).Effects of membrane thickness and structural type on the hydrogen separation performance of oxygen-permeable membrane reactors.Journal of membrane science,573,370-376.
MLA	Li, Wenping,et al."Effects of membrane thickness and structural type on the hydrogen separation performance of oxygen-permeable membrane reactors".Journal of membrane science 573(2019):370-376.

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