A METHOD FOR EVALUATION OF MASS-TRANSFER COEFFICIENTS IN THE DIFFERENT REGIONS OF AIR LIFT REACTORS

被引：13

作者：

MERCHUK, JC ^{[1
]}

OSEMBERG, G ^{[1
]}

SIEGEL, M ^{[1
]}

SHACHAM, M ^{[1
]}

机构：

[1] BEN GURION UNIV NEGEV,PROGRAM BIOTECHNOL,IL-84105 BEER SHEVA,ISRAEL

来源：

CHEMICAL ENGINEERING SCIENCE | 1992年 / 47卷 / 9-11期

关键词：

AIR LIFT; MASS TRANSFER RATE; STRUCTURED MODEL;

D O I：

10.1016/0009-2509(92)87038-R

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The present state of the art in the experimental determination of mass transfer coefficient in Air Lift Reactors is reviewed. A criterion which allows to decide whether the assumption of perfect mixing of the liquid phase is valid was experimentally verified. For the cases where such assumption does not hold, a new method that renders local values of K(L)a in each of the regions of the reactor (riser, downcomer and gas separator) is presented. The model is based on a fluid dynamic structured model of the system.

引用

页码：2221 / 2226

页数：6

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