GAS AND VAPOR TRANSPORT THROUGH MICROPOROUS MEMBRANES .1. KNUDSEN-POISEUILLE TRANSITION

被引：186

作者：

SCHOFIELD, RW

FANE, AG

FELL, CJD

机构：

[1] Centre for Membrane and Separation Technology, University of New South Wales, Kensington

来源：

JOURNAL OF MEMBRANE SCIENCE | 1990年 / 53卷 / 1-2期

关键词：

D O I：

10.1016/0376-7388(90)80011-A

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The transport of gases at subatmospheric pressure through typical microporous membranes falls in the transition between Knudsen and Poiseuille flow. For a range of gases and membranes it is found that flux can be correlated by the simple expression, J=aPbΔP, where b is a measure of the extent of viscous (Poiseuille) flow. The results show how b increases with gas molecular weight and membrane pore size. The use of the relationship for water vapour transport in membrane distillation (MD) is discussed. © 1990.

引用

页码：159 / 171

页数：13

共 12 条

[1]

BARROW GM, 1966, PHYSICAL CHEM

[2] PERMEABILITY MINIMUM AND VISCOSITY OF GASES AT LOW-PRESSURE [J].