INVESTIGATION OF THE PERMSELECTIVITY OF CHITOSAN MEMBRANE USED IN PERVAPORATION SEPARATION .2. INFLUENCES OF TEMPERATURE AND MEMBRANE THICKNESS

被引：47

作者：

QUNHUI, G ^{[1
]}

OHYA, H ^{[1
]}

NEGISHI, Y ^{[1
]}

机构：

[1] YOKOHAMA NATL UNIV,DEPT MAT SCI & CHEM ENGN,YOKOHAMA,KANAGAWA 240,JAPAN

来源：

JOURNAL OF MEMBRANE SCIENCE | 1995年 / 98卷 / 03期

关键词：

PERVAPORATION; CHITOSAN; TEMPERATURE; THICKNESS; DIFFUSION;

D O I：

10.1016/0376-7388(94)00190-A

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The influence of temperature on the sorption process, diffusion process, permeation rate and separation factor of crosslinked chitosan (es) membranes used for the separation of water-ethanol mixtures by pervaporation was investigated. The results indicate the plasticizing effects of the permeants and the interactions among ethanol, water and the polymer on the permeate transport mechanism of Cs pervaporation membranes. The actual swelling profile of EtOH-H2O permeates in multi-layered membranes of various thicknesses were determined. The non-Fickian behaviour of the two component flux and the dependence of the separation factor alpha(H2O/EtOH) on the membrane thickness were analyzed from the experimental data with respect to the formation of craze in the swelling layer.

引用

页码：223 / 232

页数：10

共 16 条

[1]

APEL P, 1972, J APPL POLYM SCI, V16, P1061

[2]

BADDOUR RF, 1964, J APPL POLYM SCI, V8, P897

[3] SEPARATION OF LIQUID MIXTURES BY PERMEATION [J].

BINNING, RC ;

LEE, RJ ;

JENNINGS, JF ;

MARTIN, EC .

INDUSTRIAL AND ENGINEERING CHEMISTRY, 1961, 53 (01) :45-50

[4] HYDROCARBONS SEPARATION WITH POLYMER MEMBRANES .1. BUTADIENE-ISOBUTENE SEPARATION WITH NITRILE RUBBER MEMBRANES [J].

BRUN, JP ;

BULVESTR.G ;

KERGREIS, A ;

GUILLOU, M .

JOURNAL OF APPLIED POLYMER SCIENCE, 1974, 18 (06) :1663-1683

[5] THE BLOOD COMPATIBILITY OF CHITOSAN AND N-ACYLCHITOSANS [J].

HIRANO, S ;

NOISHIKI, Y .

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1985, 19 (04) :413-417

[6] WATER ETHANOL PERMSEPARATION BY PERVAPORATION THROUGH THE PLASMA GRAFT COPOLYMERIC MEMBRANES OF ACRYLIC-ACID AND ACRYLAMIDE [J].

HIROTSU, T ;

NAKAJIMA, S .

JOURNAL OF APPLIED POLYMER SCIENCE, 1988, 36 (01) :177-189

[7] EFFECT OF FILM THICKNESS AND SAMPLE HISTORY ON PARAMETERS DESCRIBING TRANSPORT IN GLASSY POLYMERS [J].

HOPFENBERG, HB .

JOURNAL OF MEMBRANE SCIENCE, 1978, 3 (2-4) :215-230

[8]

Huang RYM., 1991, PERVAPORATION MEMBRA, Vfirst ed.

[9]

HUANG RYM, 1990, J MEMB SCI, V5, P273

[10] ACTUAL CONCENTRATION PROFILES IN MEMBRANE PERMEATION [J].

KIM, SN ;

KAMMERME.K .

SEPARATION SCIENCE, 1970, 5 (06) :679-&

← 1 2 →