Organosolv Pulping of Bagasse with Formic Acid
Organosolv pulping process is an alterative effective method to delignify lignocellulosic materials to produce pulp for paper. In the present research, formic acid was implemented to this process under atmospheric to fractionate fiber by dissolve lignin and partial hemicellulose. It was shown that pulping of bagasse was satisfactorily delignified when the formic acid concentration was limited to 90％(v/v). A kinetic model for delignification of bagasse during cooking with formic acid was established by statistic method from results of experimental, that is as D(Delignification) = 0.74689×C 1.68799 ×(1-EXP(-0.05171t)), which can predict lignin content in formic acid liquor during cooking process. The delignification of bagasse by formic acid in 90％ was almost completed about 80min, and extended cooking time did not improve the delignification anymore. Meanwhile, some carbohydrates were also degraded as well as bagasse could be fractionated to pulp; especially the emicelluloses are rapidly hydrolyzed in this system at the initial stage.
bagasse formic acid kinetic model
Shiyu Fu Qiliang Tu Huaiyu Zhan
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
国际会议
第四届中日化工学术研讨会(The 4th Joint China/Japan Chemical Engineering Symposium)(CJCES)
成都
英文
2007-12-19（万方平台首次上网日期，不代表论文的发表时间）