油棕榈果球丝烧碱-蒽醌法蒸煮脱木质素机理的研究  

Delignification Mechanism of Soda-AQ Cooking of the Thread of Oil-Palm Fruit

作　　者：曹云峰[1] 冯奇[1] 张凤山[2] 李忠正[1] 李建华[2] 

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

出　　处：《中国造纸学报》2006年第4期26-28,共3页Transactions of China Pulp and Paper

摘　　要：对马来西亚的油棕榈果球丝烧碱-蒽醌法蒸煮工艺及其蒸煮脱木质素机理进行了研究,结果表明:在所选蒸煮工艺范围内,影响油棕榈果球丝烧碱-蒽醌法蒸煮脱木质素率、纸浆得率和黑液残碱的主要因素是蒸煮最高温度,其次为用碱量,影响最小的为保温时间。而其脱木质素可分为初始脱木质素、主要脱木质素和残余脱木质素3个阶段;即蒸煮温度升至100℃时,为初始脱木质素阶段,木质素脱除率2.10%;当蒸煮温度从100℃升至160℃并保温30 min,此阶段为主要脱木质素阶段,此阶段脱除81.0%的木质素;当在160℃保温从30 min至120 min时,属残余脱木质素阶段,此阶段木质素的脱除率为12.1%。The orthogonal method was used to study the soda-AQ pulping of the thread of oil-palm fruit from Malaysia. The results indicated the maximum temperature was the most significant among the three factors , the subordination factor was the NaOH dosage and the least factor was the time at the maximum temperature. Concerning the delignification mechanism, the results indicated that 2.1% of the lignin in the thread of oil-palm fruit is removed when the cooking temperature rises to 100℃, 81.0% of the lignin is removed in 30 min at maximum temperature 160℃, another 12.1% of the lignin is removed at maximum temperature 160℃ when the retention time from 30 to 120 min. The lignin removal is divided into three distinct phases： initial delignificatian phase, bulk delignification phase and residual delignifieation phase.

关 键 词：油棕榈 烧碱-蒽醌法蒸煮 脱木质素 

分 类 号：TS743.11[轻工技术与工程—制浆造纸工程]