教師資料查詢 | 類別: 期刊論文 | 教師: 葉和明 Yeh Ho-ming (瀏覽個人網頁)

標題: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
語言英文
ISSN
期刊性質國內
收錄於SCI;
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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