巴西甘蔗渣烧碱-蒽醌法蒸煮机理的研究  

The Soda-AQ Cooking Mechanism of Bagasse from Brazil

作　　者：曹云峰[1] 张风山[1] 宜勇刚[2] 李忠正[2] 李建华[1] 

机构地区：[1]华泰集团有限公司,山东广饶257335 [2]南京林业大学,江苏南京210037

出　　处：《黑龙江造纸》2006年第2期7-8,共2页Heilongjiang Pulp & Paper

摘　　要：对巴西甘蔗渣原料主要成分和烧碱-蒽醌法蒸煮机理进行了研究。结果表明:巴西甘蔗渣与中国甘蔗渣相比,其克拉森木素含量低,而综纤维素的含量高。巴西甘蔗渣烧碱蒽醌法脱木素的阶段性可分为大量脱木素、补充脱木素和残余脱木素三个阶段:即蒸煮温度升至100℃时,为大量脱木素阶段,木素脱除69.44%;当蒸煮温度从100℃升至160℃,此阶段为补充脱木素阶段,此阶段脱除24.18%的木素;在160℃保温150min期间为残余脱木素阶段,此阶段脱除3.38%的木素。The chemical composition and the soda--AQ cooking mechanism of bagasse from Brazil was studied. A general comparison between the chemical composition of bagasse from Brazil and China, It is low content of klasson lignin and a high content of carbohydrate in bagasse for Brazil. In addition, the results indicated that there is 69.44% of the lignin in the bagasse is removed when the cooking temperature rise to100℃ ,24.18% of the lignin is removed at max. temperature 160℃. 3.38% of the lignin is removed at max. temperature 160℃ for 150 min. So the bagasse soda--AQ pulping,the dissolution of lignin proceeds is derided into three distinct phases,clued initial delignification phase,bulk delignification phase and residual delignification phase.

关 键 词：甘蔗渣 烧碱-蒽醌法蒸煮 脱木素 

分 类 号：TS743[轻工技术与工程—制浆造纸工程]