天津科技大学学报2016，Vol.31Issue(3)：36-42,7.DOI:10.13364/j.issn.1672-6510.20150060
生物质预处理对半纤维素提取及后续CTMP制浆的影响
Effects of Biomass Pretreatment on the Extraction of Hemicelluloses and the Pulp Quality of the Subsequent CTMP
摘要
Abstract
Pretreatment of the raw material before CTMP(Chemi-thermomechanical Pulp)pulping was performed,in order to make full use of biomass resources and produce value-added products,without lowering the pulp quality.Different pre-extraction methods,such as autohydrolysis,acid and alkali pre-extractions,were used for the pretreatment to study the ef-fects of pre-extraction with various severities on the pulp quality of the following CTMP(i.e.,the comprehensive variablesof the pretreatment temperature and time).The results showed that,as the condition aggravated continually,the yield of the hydrolyzed chips decreased and the amount of the dissolved hemicelluloses increased.The contents of holocellulose, pentosan and acid soluble lignin in the hydrolyzed chips decreased dramatically with the increase of the pretreatment severity.The pretreatment shortened the enzymatic hydrolysis time and improved the conversion of glucose of wheat straw.Compared with the original wood chips,the hydrolyzed chips had not only a lower pressurized refining energy con-sumption but also a higher energy saving in PFI refining.In addition,the CTMP made of hydrolyzed chips had a higher ten-sile index and an enhanced tear index.关键词
水解/预处理/CTMP/半纤维素Key words
hydrolysis/pretreatment/CTMP/hemicelluloses分类
轻工纺织引用本文复制引用
侯庆喜,马静,刘苇,汪洋,李杨,刘莉晖,张金平..生物质预处理对半纤维素提取及后续CTMP制浆的影响[J].天津科技大学学报,2016,31(3):36-42,7.基金项目
国家自然科学基金资助项目(31270630) （31270630）
