ALKALINE PULPING AND TCF BLEACHING OF HOT-WATER EXTRACTED BAGASSE

摘要：

The combination of hemicelluloses extraction with chemical pulping process is a new bio-refinery technology. It allows pulp and paper mills to produce biofuels and chemicals in addition to paper products. Hot water extraction of hemicelluloses from bagasse was performed under the following conditions, using time of 30 min, temperature of 160 °C. The extracted bagasse was subjected to soda and soda-AQ pulping. The results showed that delignification rate of extracted bagasse soda pulping was lower and the alkali consumption was higher than that of standard bagasse soda pulping. Addition of anthraquinone during soda pulping of bagasse significantly improved the delignification efficiency. Two-stage oxygen delignification and TCF bleaching sequences were performed for both pulp made by standard bagasse and extracted bagasse. The study demonstrated that delignification efficiency of the pulp from extracted bagasse was higher compared to the pulp from standard bagasse during oxygen delignification and TCF bleaching, but the pulp from extracted bagasse exhibited lower viscosity than the pulp from standard bagasse.

关键词： biorefinery hot-water extraction bagasse soda pulping TCF bleaching

作者: Jiang Li Yichao Lei Xiaowen Deng Zepeng Liu

作者单位: State Key Laboratory of Pulp and PaperEngineering, South China University of Technology, Guangzhou, State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou,

会议类型: 国际会议

会议名称: 16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)

会议地点: 天津

会议语种:英文

页码: 661-665

在线出版日期: 2011-06-08（万方平台首次上网日期，不代表论文的发表时间）