Concentration of solution in cross-flow rotating packed bed contactor

被引：2

作者：

Goswami, Nilutpal ^{[1
]}

Basu, Sayantani ^{[1
]}

Bhowal, Avijit ^{[1
]}

Datta, Siddhartha ^{[1
]}

机构：

[1] Jadavpur Univ, Dept Chem Engn, Kolkata 700032, India

来源：

CHEMICAL ENGINEERING RESEARCH & DESIGN | 2015年 / 95卷

关键词：

Evaporation; Centrifugal acceleration; Unsaturated gas; HEAT-TRANSFER; MASS-TRANSFER; FILM; EVAPORATOR;

D O I：

10.1016/j.cherd.2014.11.004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Thin film evaporators are traditionally used to concentrate heat sensitive liquid foods wherein thermal energy is supplied to evaporate the volatile component in the solution generally maintained at its boiling point by application of vacuum. In this study, a sub-cooled solution was contacted with an unsaturated gaseous stream in cross-flow rotating packed bed (RPB) to evaporate the volatile component. The performance of the equipment was studied for concentration of aqueous potassium chloride solution. The maximum evaporation rate achieved at an optimum air flow rate, liquid flow rate and rotor speed determined using response surface methodology was 2.4kg/h. Comparison of water evaporation rate with vertical thin film evaporators suggested the feasibility of achieving higher evaporation rate per unit contactor volume by carrying out the process in RPB. (c) 2014 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：281 / 287

页数：7

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