中国造纸2025，Vol.44Issue(9)：72-80,9.DOI:10.11980/j.issn.0254-508X.2025.09.010
马尾松深度预水解硫酸盐法制浆性能研究
Study of the Pulping Performance of Masson Pine Based on the Deeply Pre-hydrolysis Kraft Method
摘要
Abstract
Using masson pine as raw material,deeply pre-hydrolysis kraft pulping process was employed to investigate the effects of pre-hydrolysis conditions on the chemical composition and fiber morphology of masson pine.The results showed that prolonging the pre-hydrolysis time and increasing the pre-hydrolysis temperature resulted in extensive dissolution of hemicellulose and disruption of the raw material structure,but also led to a decrease in yield of raw material.When the conditions were 135 min of pre-hydrolysis time,170℃of pre-hydrolysis temperature,and liquor-to-wood ratio of 1∶4,the hemicellulose,cellulose,and lignin contents of masson pine changed from 22.80%,46.81%,and 28.40%to 12.71%,49.82%,and 27.61%,respectively,the dissolution rate of hemicellulose was 53.3%,and the yield of pre-hydrolyzed chips was 83.9%.It's that during the pre-hydrolysis process,the dissolution of hemicellulose induced structural changes in the masson pine fibers,which facilitated the penetration and diffusion of chemical agents during the cooking process and thus promoted lignin dissolution.When the cooking conditions were 22%of active alkali(NaOH),35%of sulfidity,170℃of cooking temperature,110 min of cooking time,and liquor-to-wood ratio of 1∶4.5,the fine pulp yield of pre-hydrolysis-kraft pulp in the cooking stage was 47.1%,with Kappa number of 38.8 and intrinsic viscosity of 796 mL/g.关键词
预水解硫酸盐法/马尾松/半纤维素/木质素/溶解浆Key words
pre-hydrolysis kraft method/masson pine/hemicellulose/lignin/dissolving pulp分类
轻工纺织引用本文复制引用
罗西尧,郑小彬,张浩云,杨嘉玮,黄六莲,陈礼辉,鹿洪亮,程栋,李建国..马尾松深度预水解硫酸盐法制浆性能研究[J].中国造纸,2025,44(9):72-80,9.基金项目
福建省引导性项目(2023H0008). （2023H0008）
