Effect of transition metal catalyst on lignin oxidation during alkaline hydrogen peroxide pretreatment

Zhenglun Li, David Hodge

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Biomass lignocellulose can be used as feedstock for bioethanol production, and a pretreatment is necessary for achieving high ethanol yield and economical feasibility. As a method to increase enzyme digestibility of biomass by selective delignification, alkaline hydrogen peroxide (AHP) pretreatment has been proposed and studied. The lignin recalcitrance in lignocellulose biomass can be removed by H 2O 2 oxidation and the enzymatic hydrolysis efficiency of the polysaccharides can be greatly improved. However, a big issue with AHP pretreatment is the high cost of hydrogen peroxide during the pretreatment, and the selectivity of the oxidant need to be improved, i.e. to achieve highest pretreatment efficiency with low level of H 2O 2 loading. In 1890s, Fenton discovered that iron ion can catalyze the oxidation of organic substrate by hydrogen peroxide. Since then, research has been done on the application of transition metal catalysts in catalyzing the phenol contaminant in wastewater and pulp bleaching. It is desired that catalyst can enhance selective electron transfer from lignin substrate to the oxidant and improve the selectivity of delignification reactions to unproductive side reactions.

    Original languageEnglish (US)
    Title of host publication11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
    StatePublished - 2011
    Event2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States

    Other

    Other2011 AIChE Annual Meeting, 11AIChE
    CountryUnited States
    CityMinneapolis, MN
    Period10/16/1110/21/11

    Profile

    Hydrogen peroxide
    Lignin
    Biomass
    Oxidation
    Catalysts
    Avian Leukosis
    Afferent Loop Syndrome
    Panthera
    Delignification
    Oxidants
    Transition metals
    Substrates
    Fusobacterium
    Common Cold
    Bioethanol
    Enzymatic hydrolysis
    Polysaccharides
    Bleaching
    Feedstocks
    Phenols

    ASJC Scopus subject areas

    • Chemical Engineering(all)

    Cite this

    Li, Z., & Hodge, D. (2011). Effect of transition metal catalyst on lignin oxidation during alkaline hydrogen peroxide pretreatment. In 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings

    Effect of transition metal catalyst on lignin oxidation during alkaline hydrogen peroxide pretreatment. / Li, Zhenglun; Hodge, David.

    11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Li, Z & Hodge, D 2011, Effect of transition metal catalyst on lignin oxidation during alkaline hydrogen peroxide pretreatment. in 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011 AIChE Annual Meeting, 11AIChE, Minneapolis, MN, United States, 16-21 October.
    Li Z, Hodge D. Effect of transition metal catalyst on lignin oxidation during alkaline hydrogen peroxide pretreatment. In 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011.

    Li, Zhenglun; Hodge, David / Effect of transition metal catalyst on lignin oxidation during alkaline hydrogen peroxide pretreatment.

    11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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