ON MASS-TRANSPORT LIMITATION TO THE RATE OF REACTION OF GASES IN LIQUID DROPLETS

被引：19

作者：

SHI, BQ

SEINFELD, JH

机构：

[1] Environmental Quality Laboratory, Department of Chemical Engineering, California Institute of Technology, Pasadena

来源：

ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS | 1991年 / 25卷 / 10期

关键词：

MASS TRANSPORT; CHARACTERISTIC TIME; STEADY-STATE ASSUMPTION;

D O I：

10.1016/0960-1686(91)90111-J

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Expressions are derived to readily compare contributions to overall mass transport limitation by gas-phase diffusion, interfacial transport and aqueous-phase diffusion to the overall rate of reaction in liquid droplets. The three criteria previously derived by Schwartz (1986, in Chemistry of Multiphase Atmospheric Systems, pp. 415-471, Springer) for the absence of mass transport limitation are shown to be special cases of the more general criterion obtained here. Sensitivity of the characteristic time to achieve steady state to the accommodation coefficient is examined. Inequalities are established that give lower and upper bounds of mass transport limitation in cases of non-first-order chemical kinetics.

引用

页码：2371 / 2383

页数：13

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