Analytic solution of the Maxwell-Stefan equations for multicomponent permeation across a zeolite membrane

被引:62
作者
Krishna, R [1 ]
Baur, R [1 ]
机构
[1] Univ Amsterdam, Dept Chem Engn, NL-1018 WV Amsterdam, Netherlands
关键词
Maxwell-Stefan theory; zeolite membrane permeation; separation of atkanes;
D O I
10.1016/S1385-8947(03)00149-9
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
We develop an analytic solution of the Maxwell-Stefan equations describing steady-state diffusion of n-component mixtures across a zeolite membrane. In the development of the analytic solution we assume Langmuirian behaviour of the pure components and that the mixture sorption can be calculated from the multicomponent Langmuir isotherm. Explicit expressions are derived for calculation of steady-state fluxes and the loading profiles in the membrane. The utility of the developed solution is illustrated by means of two illustrative examples involving permeation of alkane mixtures across an MFI membrane. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:37 / 45
页数:9
相关论文
共 33 条
[1]  
Bernal MP, 2002, CHEM ENG SCI, V57, P1557
[2]   Zeolite membranes -: state of their development and perspective [J].
Caro, J ;
Noack, M ;
Kölsch, P ;
Schäfer, R .
MICROPOROUS AND MESOPOROUS MATERIALS, 2000, 38 (01) :3-24
[3]   Experimental study and numerical simulation of hydrogen/isobutane permeation and separation using MFI-zeolite membrane reactor [J].
Ciavarella, P ;
Moueddeb, H ;
Miachon, S ;
Fiaty, K ;
Dalmon, JA .
CATALYSIS TODAY, 2000, 56 (1-3) :253-264
[4]   Separations using zeolite membranes [J].
Coronas, J ;
Santamaría, J .
SEPARATION AND PURIFICATION METHODS, 1999, 28 (02) :127-177
[5]   Analysis of transient permeation fluxes into and out of membranes for adsorption measurements [J].
Gardner, TQ ;
Falconer, JL ;
Noble, RD ;
Zieverink, MMP .
CHEMICAL ENGINEERING SCIENCE, 2003, 58 (10) :2103-2112
[6]   The generalized Maxwell-Stefan model for diffusion in zeolites: sorbate molecules with different saturation loadings [J].
Kapteijn, F ;
Moulijn, JA ;
Krishna, R .
CHEMICAL ENGINEERING SCIENCE, 2000, 55 (15) :2923-2930
[7]  
Karger J., 1992, Diffusion in zeolites and other microporous solids
[8]  
KARGER J, 2003, HDB ZEOLITE SCI TECH, pCH10
[9]  
Keil FJ, 2000, REV CHEM ENG, V16, P71
[10]   Partial analytical solutions for steady-state diffusion in zeolite membranes [J].
Kerkhof, PJAM .
AICHE JOURNAL, 1998, 44 (07) :1697-1700