EXCLUSION AND TORTUOSITY EFFECTS FOR ALCOHOL WATER SEPARATION BY ZEOLITE-FILLED PDMS MEMBRANES

被引：25

作者：

HENNEPE, HJCT ^{[1
]}

SMOLDERS, CA ^{[1
]}

BARGEMAN, D ^{[1
]}

MULDER, MHV ^{[1
]}

机构：

[1] UNIV TWENTE,DEPT CHEM TECHNOL,POB 217,7500 AE ENSCHEDE,NETHERLANDS

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1991年 / 26卷 / 04期

关键词：

D O I：

10.1080/01496399108050492

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A resistance model has been developed to describe the increased pervaporation flux and selectivity for the separation of ethanol/water mixtures with silicalite-filled silicone rubber (SR) membranes as compared to unfilled SR membranes. The model interprets the increased component flux for ethanol in terms of an increasing ethanol permeability of the membrane. Membrane permeability is given as a function of rubber and silicalite permeabilities and of the silicalite content of the membrane. It is shown that silicalite permeability varies with the type of alcohol and the alcohol concentration in the feed mixture. In the series methanol, ethanol, propanol, and butanol, the alcohol permeability of silicalite varies with the length of the alcohol molecule, the lowest permeability being found for butanol. In the presence of propanol and butanol, the silicalite particles are impermeable to water and obstruct water transport through the membrane.

引用

页码：585 / 596

页数：12

共 12 条

[1]

[Anonymous], 2006, MODELS PERMEABILITY, DOI DOI 10.1080/10601326708053745

[2]

Argauer R.J., 1972, U.S. Patent, Patent No. [3,702,886, 3702886]

[3] SILICALITE, A NEW HYDROPHOBIC CRYSTALLINE SILICA MOLECULAR-SIEVE [J].

FLANIGEN, EM ;

BENNETT, JM ;

GROSE, RW ;

COHEN, JP ;

PATTON, RL ;

KIRCHNER, RM ;

SMITH, JV .

NATURE, 1978, 271 (5645) :512-516

[4]

GMEHLING J, 1977, DECHEMA CHEM DATA 1, V1

[5] USE OF SILICALITE FOR THE ADSORPTION OF NORMAL-BUTANOL FROM FERMENTATION LIQUORS [J].

MADDOX, IS .

BIOTECHNOLOGY LETTERS, 1982, 4 (11) :759-760

[6] CONCENTRATION OF ALCOHOLS BY ADSORPTION ON SILICALITE [J].

MILESTONE, NB ;

BIBBY, DM .

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 1981, 31 (12) :732-736

[7] PERVAPORATION, SOLUBILITY ASPECTS OF THE SOLUTION-DIFFUSION MODEL [J].

MULDER, MHV ;

SMOLDERS, CA .

SEPARATION AND PURIFICATION METHODS, 1986, 15 (01) :1-19

[8]

Oulman C. S, 1981, [No title captured], Patent No. [4,277,635, 4277635]

[9]

Te Hennepe H.J.C., 1988, STUD SURF SCI CATAL, V39, P411

[10] ZEOLITE-FILLED SILICONE-RUBBER MEMBRANES .1. MEMBRANE PREPARATION AND PERVAPORATION RESULTS [J].

TEHENNEPE, HJC ;

BARGEMAN, D ;

MULDER, MHV ;

SMOLDERS, CA .

JOURNAL OF MEMBRANE SCIENCE, 1987, 35 (01) :39-55

← 1 2 →