ORTHOGONAL EXPERIMENT-BASED ANALYSIS ON CATALYTIC WET AIR OXIDATION OF BAGASSE ALKALINE LIGNIN

摘要：

Orthogonal experiment is used to find out the optimal conditions and the key influencing factors during bagasse alkaline lignin degradation by Catalytic Wet Air Oxidation (CWAO). The experimental results show that vanillin and p-hydroxybenzaldehyde are the main products. For the total concentration of 9 phenolaldehydes degradation products, the most optimal level combination is the alkali concentration of 1 mol/L, the lignin concentration of 60 g/L, the top temperature of 150℃, the total pressure of 2 MPa and the reaction time of 50 min. The most important influencing factor on the concentration of vanillin and total 9 phenol-aldehydes is the total pressure, the next are lignin concentration, alkali concentration, top temperature; and the least important one is reaction time.

关键词： orthogonal tests catalytic wet air oxidation bagasse alkaline lignin degradation

作者: Xiangrong Yao Huaiyu Zhan Shiyu Fu

作者单位: State Kay Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China

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: 293-297

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）