Asymmetric gas mixture transport in composite membranes

被引：27
作者：
Roldughin, V. I. [1 ]
Zhdanov, V. M. [2 ]
机构：
[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119991, Russia
[2] Natl Res Nucl Univ, MEPhI Moscow Engn Phys Inst, Moscow 115409, Russia
来源：
ADVANCES IN COLLOID AND INTERFACE SCIENCE | 2011年 / 168卷 / 1-2期
关键词：
Membrane; Asymmetric transport; Diffusion; Slip effects; Surface forces; Kinetic theory; Non-equilibrium thermodynamics; Gas mixture separation; DIMENSIONAL SURFACE-DIFFUSION; ONE-WAY FLOW; NONEQUILIBRIUM THERMODYNAMICS; KINETIC PHENOMENA; BOUNDARY-CONDITIONS; DENSITY-DEPENDENCE; CERAMIC MEMBRANES; ION-TRANSPORT; VELOCITY SLIP; MOMENT METHOD;
D O I：
10.1016/j.cis.2011.04.001
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The asymmetry effects in gas and electrolyte transport through composite membranes are considered. The interrelation between the kinetic theory and non-equilibrium thermodynamics description of gas mixture transport in channels is discussed. The kinetic expressions for transport and slip coefficients are given. The effect of surface forces on gas transport is discussed. A set of general equations related to gas mixture flows in capillaries and porous media is deduced. The nano-size effects ill gas flows are outlined. The theoretical analysis of one-way flow effect and asymmetric separation properties of a two-layer porous membrane is given. (C) 2011 Elsevier B.V. All rights reserved.
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页码：223 / 246
页数：24
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