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	Preparation of pilot-scale inner skin hollow fiber pervaporation membrane module: Effects of dynamic assembly conditions
	Zhang, Guojun ; Wang, Naixin ; Song, Xue ; Ji, Shulan ; Liu, Zhongzhou
	2012-04-24 ; 2012-04-24
关键词	Evaporation Membranes Multilayers Pervaporation Polyelectrolytes Skin Vacuum
中文摘要	The purpose of this study is to provide some fundamental understanding for the design of industrial hollow fiber pervaporation membrane module. Inner skin hollow fiber pervaporation membrane modules were fabricated by a dynamic negative pressure layer-by-layer (LbL) technique. The influences of dynamic negative pressure and recycling velocity of polyelectrolyte solutions on the formation of non-porous selective layer were firstly investigated using mini-modules during the dynamic assembly process. Since none of reported works dealt with the effects of packing density of hollow fiber module, pilot-scale modules (diameter × length = 1 in. × 20 cm) were therefore prepared by filling different amounts of hollow fibers into a membrane shell. The experimental results show that the higher packing density of 500 m2/m3 rendered both total flux and selectivity to decrease significantly. As for a 1 m long module that has been commonly used in industry, further investigations were conducted using a 1-m long hollow fiber module. The vacuum drop along the axial direction of hollow fibers was noted, especially near to the vacuum suction opening. Despite of this, the relatively high and stable selectivity could be obtained even the fiber length increased to 1 m. © 2009 Elsevier B.V. All rights reserved.
原文出处	http://dx.doi.org/10.1016/j.memsci.2009.04.002
语种	英语
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/17312]
专题	北京工业大学
推荐引用方式 GB/T 7714	Zhang, Guojun,Wang, Naixin,Song, Xue,et al. Preparation of pilot-scale inner skin hollow fiber pervaporation membrane module: Effects of dynamic assembly conditions[J],2012, 2012.
APA	Zhang, Guojun,Wang, Naixin,Song, Xue,Ji, Shulan,&Liu, Zhongzhou.(2012).Preparation of pilot-scale inner skin hollow fiber pervaporation membrane module: Effects of dynamic assembly conditions..
MLA	Zhang, Guojun,et al."Preparation of pilot-scale inner skin hollow fiber pervaporation membrane module: Effects of dynamic assembly conditions".(2012).

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