期刊
BIORESOURCE TECHNOLOGY
卷 111, 期 -, 页码 476-481出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.02.011
关键词
Steam pretreatment; Refining; Explosion; Enzymatic hydrolysis; Volatile compounds
资金
- COST [FP0901]
- FNR (Agency for Renewable Resources) within the ERA_IB [22009608E]
In steam pretreatment the defibration is usually achieved by an explosion at the end of the treatment, but can also be carried out in a subsequent refiner step. A steam explosion and a steam refining unit were compared by using the same raw material and pretreatment conditions, i.e. temperature and time. Smaller particle size was needed for the steam explosion unit to obtain homogenous slurries without considerable amounts of solid chips. A higher amount of volatiles could be condensed from the vapour phase after steam refining. The results from enzymatic hydrolysis showed no significant differences. It could be shown that, beside the chemical changes in the cell wall, the decrease of the particle size is the decisive factor to enhance the enzymatic accessibility while the explosion effect is not required. (C) 2012 Elsevier Ltd. All rights reserved.
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