Effect of External Recycle on Mass Transfer in Countercurrent Double-Pass Cross-Flow Rectangular Dialyzers

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Title:	Effect of External Recycle on Mass Transfer in Countercurrent Double-Pass Cross-Flow Rectangular Dialyzers
Authors:	Yeh, Ho-ming
Contributors:	淡江大學化學工程與材料工程學系
Date:	2011-05
Issue Date:	2011-08-09 15:24:00 (UTC+8)
Publisher:	Philadelphia: Taylor & Francis Group
Abstract:	A study on mass transfer in countercurrent cross-flow rectangular dialyzers with external recycle was investigated. Theoretical analysis of mass transfer in cross-flow dialyzers is analogous to heat transfer in cross-flow heat exchangers. In contrast to a single-pass cross-flow device without recycle, improvement in mass transfer of about 30% is achievable if a double-pass device of the same size with external recycle is employed, which provides the increase of fluid velocity, resulting in increase of mass-transfer coefficient. Higher effectiveness may be expected when dialysis is operated for the system in which the mass-transfer resistances in the liquid films are comparable with that in the membrane.
Relation:	Separation Science and Technology 46(7), pp.1068-1076
DOI:	10.1080/01496395.2011.554485
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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