Application of internal reflux in the raffinate phase for membrane extraction in cross-flow rectangular modules

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Title:	Application of internal reflux in the raffinate phase for membrane extraction in cross-flow rectangular modules
Authors:	Yeh, Ho-Ming
Contributors:	淡江大學化學工程與材料工程學系
Keywords:	Membrane extraction;Cross-flow;Rectangular modules;Internal reflux
Date:	2008-11-01
Issue Date:	2011-10-24 01:49:45 (UTC+8)
Publisher:	新竹市：中國化學工程學會
Abstract:	The effect of internal reflux in the raffinate phase for membrane extraction through a cross-flow rectangular module was investigated. Theoretical analysis of mass transfer in cross-flow devices with or without recycle was analogous to heat transfer in cross-flow heat exchangers. In contrast to a device without reflux, considerable improvement in mass transfer is achievable if cross-flow membrane extractors are operated with reflux which provides the increase of fluid velocity, resulting in reduction of mass-transfer resistance. It is concluded that reflux can enhance mass transfer, especially for large flow rate and feed-concentration solution operated under high reflux ratio.
Relation:	Journal of the Chinese Institute of Chemical Engineers=中國化學工程學會會誌 39(6), pp.571–578
DOI:	10.1016/j.jcice.2008.05.010
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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