Solvent Recovery from Soybean Oil/Hexane Miscella by PDMS Composite Membrane

蔡卫滨; 孙艳芝; 朴香兰; 李继定; 朱慎林

doi:10.1016/S1004-9541(11)60024-4

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Solvent Recovery from Soybean Oil/Hexane Miscella by PDMS Composite Membrane

Updated：2026-01-06

- Solvent Recovery from Soybean Oil/Hexane Miscella by PDMS Composite Membrane
- Chinese Journal of Chemical Engineering Vol. 19, Issue 4, Pages: 575-580(2011)
- Affiliations：
  
  State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University,Beijing,China,100084
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60024-4
  CLC：
- Published：2011
- Accepted：
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CAI Weibin, SUN Yanzhi, PIAO Xianglan, LI Jiding, ZHU Shenlin. Solvent Recovery from Soybean Oil/Hexane Miscella by PDMS Composite Membrane [J]. , 2011, 19(4): 575-580.
DOI：

CAI Weibin, SUN Yanzhi, PIAO Xianglan, LI Jiding, ZHU Shenlin. Solvent Recovery from Soybean Oil/Hexane Miscella by PDMS Composite Membrane [J]. , 2011, 19(4): 575-580. DOI： 10.1016/S1004-9541(11)60024-4.

摘要

Abstract

Traditional solvent recovery in the extraction step of edible oil processing is distillation

which consumes large amounts of energy.If the distillation is replaced by membrane process

the energy consumption can be reduced greatly.In this work

two kinds of membrane

PDMS(polydimethylsiloxane) composite membrane and Zeolite filled PDMS membrane were prepared

in which asymmetric microporous PVDF(polyvinylidenefluoride) membrane prepared with phase inversion method was functioned as the microporous supporting layer in the flat-plate composite membrane.The different function compositions of the PDMS/PVDF composite membranes were characterized by reflection Fourier transform infrared(FTIR) spectroscopy.The surface and section of PDMS/PVDF composite membranes were investigated by scanning electron microscope(SEM).The PDMS NF(nanofiltration) membranes were then applied in the recovery of hexane from soybean oil/hexane miscellas(1:3

mass ratio).The effects of pressure(0.5-1.5 MPa)

cross-linking temperature and PDMS layer thickness on membrane performances were investigated.The results indicated that both two kinds of NF membranes were promising for solvent recovery

and zeolite filled in PDMS NF membrane could enhance the separation performance.

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