Kinetics of mixed succinic acid/acetic acid esterification with Amberlyst 70 ion exchange resin as catalyst

Alvaro Orjuela, Abraham J. Yanez, Arati Santhanakrishnan, Carl T. Lira, Dennis J. Miller

    Research output: Contribution to journalArticle

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    Abstract

    Liquid phase esterification of succinic acid, acetic acid and succinic/acetic acid mixtures with ethanol was studied using Amberlyst 70 strong cation exchange resin as catalyst. Batch isothermal reactions were performed at different ethanol:acid molar ratios (1:1-27:1), temperatures (343-393. K) and catalyst loadings (1.0-9.3. wt% of solution). Esterification kinetics is described using both pseudo-homogeneous mole fraction and NRTL-based activity based models that take ethanol dehydration to diethyl ether into account. The models accurately predict the esterification of individual acids, and a simple additive combination of independent kinetic models provides a good description of mixed acid esterification. The kinetic models can be used in simulation of reactive distillation processes for mixed acid esterification.

    Original languageEnglish (US)
    Pages (from-to)98-107
    Number of pages10
    JournalChemical Engineering Journal
    Volume188
    DOIs
    StatePublished - Apr 15 2012

    Profile

    Esterification
    Acids
    acid
    Chronic Hepatitis
    Kinetics
    kinetics
    Anthralin
    Acetic acid
    Ethanol
    Catalysts
    acetic acid
    ethanol
    catalyst
    Afferent Loop Syndrome
    resin
    ion exchange
    Ion exchange resins
    Dehydration
    Distillation
    Ethers

    Keywords

    • Acetic acid
    • Amberlyst 70
    • Diethyl succinate
    • Esterification
    • Reactive distillation
    • Succinic acid

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)
    • Industrial and Manufacturing Engineering
    • Environmental Chemistry

    Cite this

    Kinetics of mixed succinic acid/acetic acid esterification with Amberlyst 70 ion exchange resin as catalyst. / Orjuela, Alvaro; Yanez, Abraham J.; Santhanakrishnan, Arati; Lira, Carl T.; Miller, Dennis J.

    In: Chemical Engineering Journal, Vol. 188, 15.04.2012, p. 98-107.

    Research output: Contribution to journalArticle

    Orjuela, Alvaro; Yanez, Abraham J.; Santhanakrishnan, Arati; Lira, Carl T.; Miller, Dennis J. / Kinetics of mixed succinic acid/acetic acid esterification with Amberlyst 70 ion exchange resin as catalyst.

    In: Chemical Engineering Journal, Vol. 188, 15.04.2012, p. 98-107.

    Research output: Contribution to journalArticle

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    abstract = "Liquid phase esterification of succinic acid, acetic acid and succinic/acetic acid mixtures with ethanol was studied using Amberlyst 70 strong cation exchange resin as catalyst. Batch isothermal reactions were performed at different ethanol:acid molar ratios (1:1-27:1), temperatures (343-393. K) and catalyst loadings (1.0-9.3. wt% of solution). Esterification kinetics is described using both pseudo-homogeneous mole fraction and NRTL-based activity based models that take ethanol dehydration to diethyl ether into account. The models accurately predict the esterification of individual acids, and a simple additive combination of independent kinetic models provides a good description of mixed acid esterification. The kinetic models can be used in simulation of reactive distillation processes for mixed acid esterification.",
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    AU - Lira,Carl T.

    AU - Miller,Dennis J.

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