Membrane extraction in rectangular modules with external recycle

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题名:	Membrane extraction in rectangular modules with external recycle
作者:	Yeh, Ho-Ming
贡献者:	淡江大學化學工程與材料工程學系
关键词:	Membrane extraction;External recycle;Rectangular module
日期:	2008-11
上传时间:	2011-10-24 01:49:51 (UTC+8)
出版者:	新竹市：中國化學工程學會
摘要:	The analysis of solvent extraction in the membrane modules of cocurrent, countercurrent and cross-flows with external recycle, has been carried out by mass-transfer theory, analogous to heat transfer in recycled heat exchangers. Considerable improvement is achievable by recycle operation if the increase in mass-transfer coefficient by applying the recycle effect can compensate for the decrease in the driving force of mass transfer due to the dilution of inlet feed solution. Under comparable conditions most solute is extracted in countercurrent-flow arrangement, the least in cocurrent-flow. However, the separation efficiencies of the three flow-type devices approach in unity for lower feed concentration and/or larger flow rate and/or larger reflux ratio.
關聯:	Journal of the Chinese Institute of Chemical Engineers=中國化學工程學會會誌 39(6), pp.679–684
DOI:	10.1016/j.jcice.2008.06.001
显示于类别:	[化學工程與材料工程學系暨研究所] 期刊論文

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