期刊
BIORESOURCE TECHNOLOGY
卷 181, 期 -, 页码 183-190出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.01.055
关键词
Biorefinery performance; Hot-water extraction (HWE); Kraft pulping; ECF bleaching; Eucalyptus
资金
- National Natural Science Foundation of China [31300495]
- Ministry of Education of China [20123515120018]
- Fujian Provincial Department of Education [JK2012015]
- Department of Forestry (Min Forestry)
- Department of Science and Technology [2013J05041, 2014J05028]
- Zhejiang Provincial Top Key Academic Discipline of Chemical Engineering and Technology, Zhejiang Sci-Tech University [YR2013011]
- Key Laboratory of biofuels at Qingdao Institute of Bioenergy, Chinese Academy of Sciences [CASKLB201308]
The effectiveness of a biorefinery based on an HWE-Kraft-ECF bleaching process and the end use of pulp was systematically evaluated. Using a P-factor of 198, nearly 30% of xylan-based sugars were recovered. The resulting pulp and paper properties were found to be comparable with the control. A maximum xylan-based sugar recovery of nearly 50% was achieved at a P-factor of 738. Although the strength of this P-factor induced handsheet was lower than that of the control by about 20%, the corresponding pulp was sufficient for dissolving pulp application. However, once the P-factor rose above 1189, hemicellulose sugars were significantly degraded into furans; pulp and paper properties were also deteriorated due to cellulose degradation, lignin deposition and condensation. Thus, considering the different end use of pulps, the performance of an HWE-based biorefinery could be balanced by its HWE severity. (C) 2015 Elsevier Ltd. All rights reserved.
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