中国造纸学报2013，Vol.28Issue(2)：1-7,7.
热水预水解对杨木半纤维素提取及后续硫酸盐法制浆的影响
Effect of Autohydrolysis on Pre-extraction of Hemicelluloses and Subsequent Kraft Pulping of Triploid Poplar
摘要
Abstract
Based on the concept of biorefinery in pulp and paper industry,pre-extracting hemicelluloses sugars from poplar chips via autohydrolysis was carried out,and then the extracted chips were used for the kraft pulping.The influence of P-factor on pre-hydrolysis and subsequent kraft pulping were investigated.The results indicated that autohydrollysis is a satisfactory process for pre-extracting hemicelluloses,and the autohydrolysis process can be well controlled by the P-factor.Besides,autohydrolysis treatment can significantly improve the deligninfication efficiency in subsequent kraft pulping,decrease the EA charge at the sacrifice of the beatability of the pulp and some physical properties of the paper.Considering the subsequent biomass utilization of pre-hydrolysis and pulping performance of the treated wood chips,the P-factor of autohydrolysis is controlled in the range from 608 to 1060,which the extraction rate of pentosan in pre-hydrolysate is from 33.18％ to 35.31％ and the yield of the kraft pulp is from 39.47％ to 37.12％.Compared with the control sample,the properties of the kraft pulp and the pulping black liquor of the pre-hydrolysis treated sample are better at the reasonable P-factor.关键词
生物质精炼/半纤维素/热水预水解/P因子/聚戊糖提取率Key words
biorefinery/ hemicellulose / autohydrolysis/ P-factor/ extraction ratio of pentosan分类
轻工纺织引用本文复制引用
段超,冯文英,张艳玲,徐明,张升友..热水预水解对杨木半纤维素提取及后续硫酸盐法制浆的影响[J].中国造纸学报,2013,28(2):1-7,7.基金项目
"十二五"国家科技支撑计划项目(2011BAC11B02). （2011BAC11B02）
