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 zh_TW
ISSN
期刊性質 國內
收錄於 SCI EI
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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