Kinetics of esterification of acidified oil with different alcohols by a cation ion-exchange resin/polyethersulfone hybrid catalytic membrane

Honglei Zhang, Jincheng Ding, Yanli Qiu, Zengdian Zhao

Research output: Journal PublicationArticlepeer-review

46 Citations (Scopus)

Abstract

Hybrid catalytic membranes consisting of cation ion-exchange resin particles (CERP) and polyethersulfone (PES) were prepared by immersion phase inversion and used as heterogeneous catalysts for the esterification of acidified oil with methanol, ethanol, propanol and butanol. The membranes were characterized by ion exchange capacity and swelling degree tests. The membranes were annealed at different temperatures to improve catalytic activity and membranes annealed at 393. K had the highest catalytic activity. Butanol allowed the highest free fatty acids (FFAs) conversion of 95.28% since it has better miscibility than the other alcohols which strengthened mass and heat transfer. Furthermore, pseudo-homogeneous kinetic models of the esterification of acidified oil with the four alcohols were established according to the experimental data. The kinetic models can well predict the FFA conversion.

Original languageEnglish
Pages (from-to)28-33
Number of pages6
JournalBioresource Technology
Volume112
DOIs
Publication statusPublished - May 2012
Externally publishedYes

Keywords

  • Biodiesel
  • Cation ion-exchange resin
  • Esterification
  • Hybrid catalytic membrane
  • Kinetic model

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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