期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 14, 页码 7183-7189出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.04.053
关键词
Steam explosion; Biopulping; Laccase; White-rot fungi; Eucalyptus globulus
资金
- Spanish Ministry of Science and Innovation [CTQ 2006-00385, CTQ 2009-11268]
- FPI fellowship [BES2007 - 14528]
The effect of a pretreatment consisting of steam explosion (SE) followed by a laccase mediator system (LMS) stage on Eucalyptus globulus kraft pulping has been evaluated and compared with fungal pretreatments. Pretreatment with SE and LMS was more efficient than pretreatments using Pycnoporus sanguineus and Trametes sp. 1-62. Steam explosion not only improved the enzyme penetration into the wood chips and shortened the pulping process by 60%, but also extracted around 50% of the hemicelluloses which could be converted into value-added products. The optimal conditions for the LMS treatment were 3 h, 3 UA/g and 40 degrees C. Compared to SE, the SE/LMS treatment yielded an increase in delignification of 13.9% without affecting pulp properties, provided a similar screened kraft yield, and reduced consumption of chemical reagents Na2S and NaOH by 11.5% and 6.3%, respectively. Therefore, SE/LMS is a promising pretreatment for converting the pulp mill into a forest bio-refinery. (C) 2011 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据