摘要
基于环境保护和资源高效利用的考虑,对蔗渣纤维原料采用高效清洁的氧碱制浆方法进行纤维分离十分必要。然而,由于氧自由基的选择性差,在分离过程中会攻击纤维素,使其严重降解。因此,针对这一问题,认为有必要从物理传质、化学反应等角度对氧碱制浆过程进行了深层次的分析,并根据氧碱蒸煮过程的关键性影响因素,提出了抑制纤维素解聚的作用机制,以期为实现工业化氧碱蒸煮制备高品质蔗渣浆提供科学指导。
Alkali-oxygen pulping is a good way for efficient and clean separation of bagasse raw materials.However,during alkalioxygen pulping,due to the low selectivity of delignification,the oxygen radicals would lead serious degradation of carbohydrate polymers.Based on this difficult position,it is urgently needed to further study the alkali-oxygen pulping process with mass transfer theory and chemical reaction mechanism and thus offer some suggestions for inhibition of the degradation of carbohydrates,which should be good for the industrial application of alkali-oxygen pulping of bagasse.
作者
陈克利
李欣欣
朱正良
字建祥
雀静
张永鑫
李学彬
柴欣生
何亮
CHEN Ke-li1, LI Xin-xin1, ZHU Zheng-liang1, Zi Jian-xiang2, QUE Jing2 ,ZHANG Yong-xin2 ,LI Xue-bin2 ,CHAI Xin-sheng3 ,HE Liang1,2,3.(1. Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China; 2. Yunnan Hongta Lanying Paper Industry Co. , Ltd. , Jianshui 654300, China; 3. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Chin)
出处
《造纸科学与技术》
2018年第1期19-24,共6页
Paper Science & Technology
基金
国家自然科学基金面上项目(21276119)
(21576105)共同资助
关键词
氧碱制浆
蔗渣纤维原料
解聚作用
抑制机理
氧碱自由基
alkali-oxygen pulping
bagasse raw material
depolymerization
inhibition mechanism
oxygen radical
