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

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    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.

    Original languageEnglish (US)
    Pages (from-to)793-797
    Number of pages5
    JournalBioresource Technology
    Volume130
    DOIs
    StatePublished - Feb 2013

    Profile

    Alcohols
    acid
    alcohol
    Butyric acid
    Esterification
    Catalysts
    Afferent Loop Syndrome
    Chronic Hepatitis
    catalyst
    Chain length
    Kinetics
    Carbon
    Cycloheximide
    kinetics
    carbon
    Acids
    Ion exchange
    Resins
    Positive ions
    Liquids

    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

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

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

    Research output: Contribution to journalArticle

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