Butyric acid esterification kinetics over Amberlyst solid acid catalysts: The effect of alcohol carbon chain length

Venkata K S Pappu, Victor Kanyi, Arati Santhanakrishnan, Carl T. Lira, Dennis J. Miller

Research output: Contribution to journalArticle

  • 25 Citations

Abstract

The liquid phase esterification of butyric acid with a series of linear and branched alcohols is examined. Four strong cation exchange resins, Amberlyst™ 15, Amberlyst™ 36, Amberlyst™ BD 20, and Amberlyst™ 70, were used along with para-toluenesulfonic acid as a homogeneous catalyst. The effect of increasing alcohol carbon chain length and branching on esterification rate at 60. °C is presented. For all catalysts, the decrease in turnover frequency (TOF) with increasing carbon chain length of the alcohol is described in terms of steric hindrance, alcohol polarity, and hydroxyl group concentration. The kinetics of butyric acid esterification with 2-ethylhexanol using Amberlyst™ 70 catalyst is described with an activity-based, pseudo-homogeneous kinetic model that includes autocatalysis by butyric acid.

LanguageEnglish (US)
Pages793-797
Number of pages5
JournalBioresource Technology
Volume130
DOIs
StatePublished - Feb 2013

Profile

Butyric acid
Butyric Acid
Esterification
Chain length
alcohol
Alcohols
Carbon
catalyst
kinetics
Catalysts
Kinetics
Acids
acid
carbon
Cation Exchange Resins
Hydroxyl Radical
resin
ion exchange
Ion exchange
turnover

Keywords

  • 2-Ethylhexanol
  • Amberlyst 70
  • Biofuel
  • Butyric Acid
  • Esterification

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Butyric acid esterification kinetics over Amberlyst solid acid catalysts : The effect of alcohol carbon chain length. / Pappu, Venkata K S; Kanyi, Victor; Santhanakrishnan, Arati; Lira, Carl T.; Miller, Dennis J.

In: Bioresource Technology, Vol. 130, 02.2013, p. 793-797.

Research output: Contribution to journalArticle

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