Simulation of the Onset of Flow through a PTMSP-Based Polymer Membrane during Nanofiltration of Water-Methanol Mixture

被引：9

作者：

Filippov, A. N. ^{[1
]}

Ivanov, V. I. ^{[1
]}

Yushkin, A. A. ^{[2
]}

Volkov, V. V. ^{[2
,4
]}

Bogdanova, Yu. G. ^{[3
]}

Dolzhikova, V. D. ^{[3
]}

机构：

[1] Gubkin Russian State Univ Oil & Gas, Moscow 119991, Russia

[2] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia

[3] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia

[4] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

来源：

PETROLEUM CHEMISTRY | 2015年 / 55卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

nanoporous PTMSP membrane; flow of water-ethanol mixture; percolation threshold; model of gradual pore opening; Langmuir adsorption isotherm; GLASSY-POLYMERS; SOLVENT NANOFILTRATION; LIQUID PERMEATION; PERMEABILITY; SEPARATION; TRANSPORT; LIFETIME;

D O I：

10.1134/S0965544115050059

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The nanofiltration of the water-ethanol mixture of different compositions at three pressure drops through a nanoporous membrane based on poly(1-trimethylsilyl-1-propyne) has been experimentally and theoretically studied. A mathematical model of the onset of flow has been proposed, and the percolation threshold depending on the physicochemical and geometrical characteristics of the membrane system has been found. The model suggests gradual membrane pore opening with an increase in pressure and alcohol concentration in the mixture and can take account of the distribution of alcohol molecules over the cross section of the membrane pores. The theoretical results agree well with the experimental data.

引用

页码：347 / 362

页数：16

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