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
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
收藏
页码:159 / 171
页数:13
相关论文
共 12 条
[1]  
BARROW GM, 1966, PHYSICAL CHEM
[2]   PERMEABILITY MINIMUM AND VISCOSITY OF GASES AT LOW-PRESSURE [J].
CREUTZ, E .
NUCLEAR SCIENCE AND ENGINEERING, 1974, 53 (01) :107-109
[3]   MEMBRANE DISTILLATION IN THE TREATMENT OF AQUEOUS-SOLUTIONS [J].
DRIOLI, E ;
WU, YL ;
CALABRO, V .
JOURNAL OF MEMBRANE SCIENCE, 1987, 33 (03) :277-284
[4]   GASEOUS DIFFUSION IN POROUS MEDIA .2. EFFECT OF PRESSURE GRADIENTS [J].
EVANS, RB ;
WATSON, GM ;
MASON, EA .
JOURNAL OF CHEMICAL PHYSICS, 1962, 36 (07) :1894-&
[5]   GASEOUS DIFFUSION IN POROUS MEDIA AT UNIFORM PRESSURE [J].
EVANS, RB ;
WATSON, GM .
JOURNAL OF CHEMICAL PHYSICS, 1961, 35 (06) :2076-&
[6]  
KAMIDE K, 1980, ULTRAFILTRATION MEMB, P173
[7]  
Present R.D., 1958, KINETIC THEORY GASES
[8]   PERMEATION OF SIMPLE GASES THROUGH A POROUS-MEDIUM [J].
SCHNEIDER, P .
COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, 1975, 40 (10) :3114-3122
[9]   GAS AND VAPOR TRANSPORT THROUGH MICROPOROUS MEMBRANES .2. MEMBRANE DISTILLATION [J].
SCHOFIELD, RW ;
FANE, AG ;
FELL, CJD .
JOURNAL OF MEMBRANE SCIENCE, 1990, 53 (1-2) :173-185
[10]   HEAT AND MASS-TRANSFER IN MEMBRANE DISTILLATION [J].
SCHOFIELD, RW ;
FANE, AG ;
FELL, CJD .
JOURNAL OF MEMBRANE SCIENCE, 1987, 33 (03) :299-313