Activity Comparison of Acidic Resins in the Production of Valuable Glycerol Acetates

EKİNCİ E., Gunduz G., OKTAR N.

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING, vol.14, no.1, pp.309-314, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 1
  • Publication Date: 2016
  • Doi Number: 10.1515/ijcre-2015-0012
  • Journal Name: INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.309-314
  • Keywords: glycerol, acetic acid, esterification, acidic ion exchange resins
  • Gazi University Affiliated: Yes

Abstract

Acetates of glycerol have been produced in a heterogeneous reaction system using acidic ion-exchange resin catalysts; Amberlyst-15 (A-15), Amberlyst-16 (A-16), Amberlyst-36 (A-36), Amberlite-IR 120 (A-IR 120) and Relite-EXC8D (R-EXC8D). Effect of reaction temperature on glycerol conversion and product (mono, di and tri glycerol acetates) selectivities were investigated via reaction experiments conducted with glycerol to acetic acid initial molar ratio (G/Ac) of 1/6. Increase in glycerol conversion with an increase in temperature was observed for all catalysts. Among the catalysts investigated, R-EXC8D exhibited the highest activity in the temperature range of 95-150 degrees C. Reaction was completed within a 25 minute short time period.