INFLUENCE OF INITIAL LIQUID DISTRIBUTION ON MASS TRANSFER IN PACKED BEDS

作     者：Reinhard Billet 

作者机构：Department of Process and Environmental Engineering Ruhr University Bochum 44780 Bochum Germany 

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

年 卷 期：1994年第2卷第2期

页      面：39-53页

核心收录：

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 081701[工学-化学工程] 

主　　题：liquid distribution packed bed 

摘      要：Experience from experimental studies shows that the efficiency of a column packing depends considerably on liquid flow management at the top of the column. Therefore, attention must be drawn to the need for a proper liquid distribution design in order to obtain good operation of the packed bed. The choice of the liquid distribution system depends on the geometry of the selected packings and on the operating conditions. One of the main parameters which determines the operation of the distribution and its influence on bed efficiency is the number of liquid feeders. Extensive systematic investigations were carried out under absorption, desorption and rectification conditions in beds of different dumped and regular packings, applying distributors with varying numbers of liquid outlets. The evaluations and modelling of the experimental results led to the determination of the proper number of feeder points, which mainly depends on the packing geometry represented by its open area and void fraction. The main results are shown in the form of diagrams and equations.