Prediction of Effective Diffusion Coefficient in Rotating Disc Columns and Application in Design

作     者：Marzieh Amanabadi Hossein Bahmanyar Zohreh Zarkeshan Mohamad Ali Mousavian 

作者机构：Engineering CollegeChemical Engineering FacultyUniversity of Tehran 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2009年第17卷第3期

页      码：366-372页

摘      要：A rotating disc column (RDC) with inner diameter 68 mm and 28 compartments is used in this study. Parameters including Sauter mean diameter, hold-up and mass transfer coefficient are measured experimentally un-der different operating conditions. The correlations in literature for molecular diffusion and enhancement factor equation including eddy diffusion, circulation and oscillation of drops are evaluated. A new equation for the effec-tive diffusion coefficient as a function of Reynolds number is proposed. The calculated values of mass transfer co-efficient and column height from the previous equations and present equation are compared with the experimental data. The results from the present equation are in very good agreement with the experimental results, which may be used in designing RDC columns.

主 题 词：liquid-liquid extraction rotating disc column mass transfer coefficient effective diffusion coefficient 

学科分类：0710[理学-生物科学类] 080706[080706] 0830[工学-生物工程类] 0817[工学-轻工类] 08[工学] 0807[工学-电子信息类] 0703[理学-化学类] 

核心收录：

D　O　I：10.1016/S1004-9541(08)60218-9

馆 藏 号：203163828...