羟基自由基活性氧处理机械草浆分离半纤维素和木质素

于跃;陈宣宇;张鹏*

北京化工大学学报(自然科学版) ›› 2011, Vol. 38 ›› Issue (4) : 115-118.

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北京化工大学学报(自然科学版) ›› 2011, Vol. 38 ›› Issue (4) : 115-118.
生物技术与环境工程

羟基自由基活性氧处理机械草浆分离半纤维素和木质素

  • 于跃;陈宣宇;张鹏*
作者信息 +

Separation of hemicellulose and lignin from mechanical straw pulp by hydroxyl radical activated oxygen treatment

  • YU Yue;CHEN XuanYu;ZHANG Peng
Author information +
文章历史 +

摘要

基于生物质精炼与制浆相结合的构想,采用羟基自由基活性氧处理机械草浆,分离半纤维素和木质素,探讨了温度(T)、反应时间(t)、H2O2浓度质量分数(w)和固液比(r)等因素对半纤维素、木质素提取效果的影响。实验结果表明:在T=160℃,t=2h,w(H2O2)=1.5%,r=5g/L的反应条件下,半纤维素和木质素脱除率最高,分别达到82.68%,91.22%。

Abstract

Hemicellulose and lignin in mechanical straw pulp have been separated by using hydroxyl radical activated oxygen. Based on a combination of biomass refining and pulping, the effects of varying four factorsreaction temperature (T), reaction time (t), H2O2 mass fraction (w), and solid-liquid ratio (r)were investigated. The optimized values of T, t, w, and r were found to be 160, 2h, 1.5%, and 5g/L, respectively. Under these conditions, removal of hemicellulose and lignin reached the maximum extents of 82.68%, and 91.22%, respectively.

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于跃;陈宣宇;张鹏*. 羟基自由基活性氧处理机械草浆分离半纤维素和木质素[J]. 北京化工大学学报(自然科学版), 2011, 38(4): 115-118
YU Yue;CHEN XuanYu;ZHANG Peng. Separation of hemicellulose and lignin from mechanical straw pulp by hydroxyl radical activated oxygen treatment[J]. Journal of Beijing University of Chemical Technology, 2011, 38(4): 115-118

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