Effect of external recycle and double-pass barrier locationon membrane extraction in cross-flow modules
學年 97
學期 1
出版（發表）日期 2009-01-01
作品名稱 Effect of external recycle and double-pass barrier locationon membrane extraction in cross-flow modules
作品名稱（其他語言）
著者 葉和明
單位 淡江大學化學工程與材料工程學系
出版者
著錄名稱、卷期、頁數 Sep. Sci. and Technol. 44(2), pp.447-465
摘要 The dispersion free membrane extraction through a cross-flow rectangular membrane module with arbitrary location of an impermeable plate placed for double-pass and external-recycle operations in raffinate phase, has been investigated. Theoretical treatment was analogous to the heat transfer in heat exchangers for the mass transfer in mass exchangers. An experiment was carried out in a cross-flow conduit of stainless steel inserted with a membrane sheet made of microporous polypropylene to extract acetic acid from aqueous solution by methyl iso-butyl ketone. Theoretical predictions are in agreement with the experimental results. Considerable improvement in mass-transfer performance is obtainable if the width of the first-pass subchannel, ΔB decreases, as well as the width of the second-pass subchannel, (1−Δ)B increases. The mass-transfer rate increases also when the reflux ratio increases. Based on the economic point of view, the suitable value of Δ (B is the width of a membrane sheet) may be 0.2.
關鍵字 Cross flow;double-pass;external reflux;free barrier-location;membrane extraction
語言 en
ISSN
期刊性質 國內
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版
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