PERMEATION AND SEPARATION OF LIGHT-HYDROCARBONS THROUGH A SILICALITE-1 MEMBRANE - APPLICATION OF THE GENERALIZED MAXWELL-STEFAN EQUATIONS

被引:112
作者
KAPTEIJN, F
BAKKER, WJW
ZHENG, GH
POPPE, J
MOULIJN, JA
机构
[1] Department of Chemical Engineering, Delft University of Technology, 2628BL Delft
来源
CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL | 1995年 / 57卷 / 02期
关键词
MICROPOROUS MEMBRANE; ZEOLITE; DIFFUSION; SEPARATION; HYDROCARBON;
D O I
10.1016/0923-0467(94)02941-5
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Single-component permeation data are given for methane, ethane, propane, ethene and propene through a silicalite-1 membrane of approximately 40 mu m thickness at 293 K as a function of their partial pressure. The permeation fluxes generally decrease with increasing molecular size, while the alkenes permeate more rapidly than their corresponding alkanes at identical conditions. In 1:1 mixtures of ethane-ethene and propane-propene (1 bar total pressure) the alkanes permeate faster, yielding selectivity factors of 1.9 and 1.3 respectively. The generalized Maxwell-Stefan (GMS) equations, adapted for surface diffusion, could describe the permeation data well. The unary systems yielded diffusivity data that were fairly constant or varied at most by a factor of 2-3. These diffusivities compare well with literature values obtained with other (transient) techniques that yield transport diffusivities. The binary system permeation data could be quantitatively described by the GMS equations without exchange contributions (''single-file'' diffusion) and need only the diffusivity values of the unary permeation experiments.
引用
收藏
页码:145 / 153
页数:9
相关论文
共 32 条
  • [1] QUATERNARY, TERNARY, BINARY, AND PURE COMPONENT SORPTION ON ZEOLITES .1. LIGHT ALKANES ON LINDE S-115 SILICALITE AT MODERATE TO HIGH-PRESSURES
    ABDULREHMAN, HB
    HASANAIN, MA
    LOUGHLIN, KF
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1990, 29 (07) : 1525 - 1535
  • [2] BAKKER WJW, 1993, PRECISION PROCESS TECHNOLOGY, P425
  • [3] BARRER RM, 1991, STUD SURF SCI CATAL, V65, P257
  • [4] BULOW M, 1986, 7TH P INT ZEOL C TOK, P579
  • [5] MICRODYNAMICS OF METHANE, ETHANE AND PROPANE IN ZSM-5-TYPE ZEOLITES
    CARO, J
    BULOW, M
    SCHIRMER, W
    KARGER, J
    HEINK, W
    PFEIFER, H
    ZDANOV, SP
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1985, 81 : 2541 - 2550
  • [6] MOLECULAR-DYNAMICS STUDIES OF HYDROCARBON DIFFUSION IN ZEOLITES
    CATLOW, CRA
    FREEMAN, CM
    VESSAL, B
    TOMLINSON, SM
    LESLIE, M
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (13): : 1947 - +
  • [7] THE DETERMINATION OF ZEOLITE CRYSTAL DIFFUSIVITY BY GAS-CHROMATOGRAPHY .2. EXPERIMENTAL
    CHIANG, AS
    DIXON, AG
    MA, YH
    [J]. CHEMICAL ENGINEERING SCIENCE, 1984, 39 (10) : 1461 - 1468
  • [8] FOURIER-TRANSFORM PULSED-FIELD-GRADIENT H-1 NUCLEAR-MAGNETIC-RESONANCE INVESTIGATION OF THE DIFFUSION OF LIGHT NORMAL-ALKANES IN ZEOLITE ZSM-5
    DATEMA, KP
    DENOUDEN, CJJ
    YLSTRA, WD
    KUIPERS, HPCE
    POST, MFM
    KARGER, J
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (12): : 1935 - 1943
  • [9] EIC M, 1989, ZEOLITES FACTS FIGUR, P897
  • [10] GEUS ER, 1993, THESIS DELFT U TECHN