Kinetics of Viscosity Decrease by Cellulase Treatment of Bleached Hardwood Kraft-Based Dissolving Pulp

BioResources

Jiachuan Chen¹  Xingxiang Ji¹  Qiang Wang¹  Guihua Yang²  Shanshan Liu²  Yonghao Ni² 

[1] China;Qilu University of Technology;

关键词: Dissolving pulp;    Cellulose;    Viscosity;    Kinetics;    Cellulase treatment;   

DOI  :  10.15376/biores.10.2.2418-2424

来源: DOAJ

【 摘 要 】

A dissolving pulp of low cellulose viscosity represents a pulp of high quality; hence, it is often necessary to decrease the initial dissolving pulp viscosity. One so-called environmentally friendly approach to further reducing the dissolving pulp viscosity is to treat the dissolving pulp with cellulase enzymes. In this study, the kinetics of the decrease in cellulose viscosity during a cellulase treatment was investigated. The study showed that the kinetics of the cellulose degradation during a cellulase treatment can be divided into at least two phases, where the initial phase is very fast and the final phase is very slow. The kinetic two-phase model for the viscosity degradation that has been developed in this project can be used to predict and control the final pulp viscosity of dissolving pulps.

【 授权许可】

Unknown