化工学报Issue(3)：987-991,5.DOI:10.11949/j.issn.0438-1157.20141646
速生桉木硫酸盐法制浆过程中甲醇生成量的预测模型
Model for prediction of methanol formation in kraft pulping process using fast-growing eucalyptus wood
摘要
Abstract
The effects of the initial concentration of effective alkali, H factor (ie, coupled time and temperature) on methanol formation in the eucalyptus pulping and residual alkali concentration in the pulping effluents were investigated. It was found that there existed a linear relationship between the effective alkali concentration and negative exponent of H factor for pulping process. From this observation, a mathematical model that takes account for the time-dependent concentration of effective alkali was established from the kinetic analysis for wood demethoxylation during pulping process. The results showed that the proposed model could predict methanol formation in kraft pulping at various process conditions with a good accuracy (R2=0.990). It was found from the results predicted by this model that the methanol formation was much more sensitive to pulping temperature than to initial concentration of effective alkali. The prediction of this model for formation amount of methanol at various process conditions could be a good guidance for control and reduction of methanol formation per unit mass removal of lignin in pulping process.关键词
速生桉木/硫酸盐法蒸煮/动力学/甲醇生成量/预测/模型Key words
fast-growing eucalyptus/kraft pulping/kinetics/methanol formation/prediction/model分类
轻工纺织引用本文复制引用
张春云,柴欣生..速生桉木硫酸盐法制浆过程中甲醇生成量的预测模型[J].化工学报,2015,(3):987-991,5.基金项目
国家教育部博士点基金项目（20110172110026）。@@@@ supported by the Ph.D Program Foundation of Ministry of Education of China (20110172110026) （20110172110026）
