Novel insight in carbohydrate degradation during alkaline treatment

Kaarlo Nieminen, Markus Paananen, Lidia Testova, Herbert Sixta

    Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientific

    Abstrakti

    We present a mathematical model for the yield loss and decline in polymerization of carbohydrates. The model is applicable to the treatment of cellulose and hemicellulose in alkaline media and it features the actions of peeling, stopping and alkaline hydrolysis on the polymer chains. The reaction rates are estimated by fitting the model to experimental data. Experiments conducted at several temperatures enable the evaluation of activation energies for the reactions. The peeling reaction is further divided into primary and secondary peeling, depending on whether it originates from an initial reducing end group or from a reducing end group created by alkaline hydrolysis. We are able to evaluate the impact of the different processes on degradation and the portion of polymer chains possessing reducing end groups.
    AlkuperäiskieliEnglanti
    Otsikko13th European workshop on lignocellulosics and pulp
    JulkaisupaikkaSpain
    KustantajaInstitute of Natural Resources and Agrobiology of Seville
    Sivut603
    Sivumäärä606
    ISBN (painettu)978-84-616-9842-4
    TilaJulkaistu - heinäk. 2014
    OKM-julkaisutyyppiB3 Vertaisarvioimaton artikkeli konferenssijulkaisussa
    TapahtumaEuropean Workshop on Lignocellulosics and Pulp - Seville, Espanja
    Kesto: 24 kesäk. 201427 kesäk. 2014
    Konferenssinumero: 13

    Workshop

    WorkshopEuropean Workshop on Lignocellulosics and Pulp
    LyhennettäEWLP
    Maa/AlueEspanja
    KaupunkiSeville
    Ajanjakso24/06/201427/06/2014

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