Kinetics of esterification of acetic acid with 1-octanol in the presence of Amberlyst 36

AKYALÇIN S., ALTIOKKA M. R.

APPLIED CATALYSIS A-GENERAL, vol.429, pp.79-84, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 429
  • Publication Date: 2012
  • Doi Number: 10.1016/j.apcata.2012.04.015
  • Journal Name: APPLIED CATALYSIS A-GENERAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.79-84
  • Keywords: Esterification, Reaction kinetics, n-Octylacetate, Amberlyst 36, Eley-Rideal mechanism, CATALYZED ESTERIFICATION, EXCHANGE-RESINS, SIDE REACTIONS, LACTIC-ACID
  • Anadolu University Affiliated: Yes

Abstract

Kinetic data on the esterification of acetic acid with 1-octanol were obtained from both uncatalyzed and heterogeneously catalyzed reactions using a stirred batch reactor in toluene. The equilibrium constant, K-C, which is independent of temperature ranging from 333 to 358K, was found to be 60.7. The uncatalyzed reaction was proved to be a second-order reversible reaction. In the presence of Amberlyst 36, the reaction was found to follow the Eley-Rideal mechanism, and the surface reaction is a rate-limiting step. From this model, the reaction rate can be given by the expression: