Hemicellulose hydrolysis in the presence of heterogeneous catalysts

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Tapio Salmi, Dmitry Murzin, Johan Wärnå, Päivi Mäki-Arvela, Bright Kusema, Bjarne Holmbom, Stefan Willför
Publiceringsår: 2014
Tidskrift: Topics in Catalysis
Volym: 57
Nummer: 17-20
Artikelns första sida, sidnummer: 1470
Artikelns sista sida, sidnummer: 1475
eISSN: 1572-9028


Abstrakt

A prominent autocatalytic effect in the hydrolysis of hemicelluloses was observed in the presence of heterogeneous cation-exchange catalysts, Amberlyst 15 and Smopex 101. The kinetic models proposed were based on the reactivities of the non-hydrolysed sugar monomer units and the increase of the rate constant as the reaction progresses and the degree of polymerization decreases. General kinetic models were derived and the kinetic parameters, describing the autocatalytic effect, were determined by non-linear regression analysis. The kinetic model explained very well the overall kinetics, as well as the product distribution in the hydrolysis of hemicelluloses.

Senast uppdaterad 2019-06-12 vid 03:29