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Experimental and simulation studies on concentration polarization in H-2 enrichment by highly permeable and selective Pd membranes
Zhang, H; Liu, DY; He, MF; Xu, HY; Li, WZ
关键词Palladium Membrane H-2 Separation Concentration Polarization Mathematical Model Nh3 Decomposition
刊名JOURNAL OF MEMBRANE SCIENCE
2006-04-05
DOI10.1016/j.memsci.2005.07.047
274期:1-2页:83-91
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
类目[WOS]Engineering, Chemical ; Polymer Science
研究领域[WOS]Engineering ; Polymer Science
关键词[WOS]HYDROGEN SEPARATION ; ALLOY MEMBRANES ; PALLADIUM ; PERMEATION ; AMMONIA ; DECOMPOSITION ; MIXTURE ; THIN
英文摘要Highly efficient Pd membranes supported on porous ceramic tubes were synthesized by a modified electroless plating method and utilized in H-2 enrichment from the gas mixture that came from an NH3 cracker. Two Pd membranes whose permeation properties varied widely had been evaluated at temperatures ranging from 623 to 773 K and under pressures up to 5.06625 x 105 Pa (5.0 atm). Experimental results revealed that the concentration polarization phenomenon played a determining role in the case of gas separation by the highly permeable and selective membranes. It caused a significant loss in both H-2 yield and purity; and therefore, the separation efficiency of H-2 generation system decreased greatly. A mathematical model was built to describe the concentration polarization phenomena in H-2 enrichment by highly permeable and selective Pd membranes under the conditions utilized. In line with the experimental observations, this model accurately predicated the dependency of permeation performance on the operation parameters such as pressure, temperature, feed gas flow rate and permeability. (c) 2005 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000236096000008
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被引频次:34[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140241
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Grad Sch, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Dept Appl Math, Dalian 116023, Peoples R China
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Zhang, H,Liu, DY,He, MF,et al. Experimental and simulation studies on concentration polarization in H-2 enrichment by highly permeable and selective Pd membranes[J]. JOURNAL OF MEMBRANE SCIENCE,2006,274(1-2):83-91.
APA Zhang, H,Liu, DY,He, MF,Xu, HY,&Li, WZ.(2006).Experimental and simulation studies on concentration polarization in H-2 enrichment by highly permeable and selective Pd membranes.JOURNAL OF MEMBRANE SCIENCE,274(1-2),83-91.
MLA Zhang, H,et al."Experimental and simulation studies on concentration polarization in H-2 enrichment by highly permeable and selective Pd membranes".JOURNAL OF MEMBRANE SCIENCE 274.1-2(2006):83-91.
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