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:Effects of Reflux and Reflux-Barrier Location on Solvent Extraction through Cross-Flow Flat-Plate Membrane Modules with Internal Reflux
學年94
學期2
出版(發表)日期2006/02/01
作品名稱Effects of Reflux and Reflux-Barrier Location on Solvent Extraction through Cross-Flow Flat-Plate Membrane Modules with Internal Reflux
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J. Membr. Sci. 269, p.133
摘要The influence of reflux as well as reflux-barrier location on cross-flow membrane extraction through the flat-plate module with internal reflux has been investigated. The recycle barrier is placed in the raffinate phase to divide the flow channel of width B into an operating subchannel of width ΔB and a reflux subchannel of width (1 − Δ)B. Considerable improvement in performance is obtainable if cross-flow membrane extraction is operated with internal reflux which provides the increase of fluid velocity, resulting in reduction of mass-transfer resistance. It was further found that suitably adjusting the recycle-barrier location in raffinate phase such that 0.75 < Δ < 0.9, is beneficial to total mass-transfer rate and thus, the reflux ratio can be reduced for achieving the same performance with the reflux barrier located at the centerline, Δ = 0.5. However, the hydraulic dissipated energies though are small, they increase rapidly with reflux ratio as well as when the recycle barrier goes far from the centerline for improving performance. Therefore, the increase of operating cost due to the friction loss of fluid flow should be also taken into consideration.
關鍵字Membrane extraction;Reflux;Recycle-barrier location;Cross flow
語言中文
ISSN
期刊性質國內
收錄於SCI;EI;
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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