APPLICATION OF LaBO3 (B=Fe, Co, Mn) IN LIGNIN CATALYTIC WET OXIDATION CONVERSION TO SELECTIVE PRODUCTION OF AROMATIC ALDEHYDES

摘要：

In order to find an efficacious and lower-price heterogeneous catalyst for the catalytic wet aerobic oxidation of lignin, the perovskit-type oxide LaBO3 (B=Fe,Co,Mn) catalysts were prepared by the sol-gel method and it was applied for the catalytic wet aerobic oxidation of lignin. The structure, surface species, reducibility and specific surface area of catalysts were characterized by XRD, XPS, TPR of H2. The catalysts showed high activity, compared with non-catalyst process, and lignin conversion and yield of each aromatic aldehydes were increased significantly. The following activity scale was found : LaCoO3 > LaMnO3 > LaFeO3. The result indicated that the catalytic oxidation activity was related with the content of the surface absorbed oxygen and redox ability of B-site ion.

关键词： lignin aromatic aldehydes

作者: Deng Haibo Lin Lu Gong Yan Long Zhu

作者单位: Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, China Stat State Key Laboratory of Pulp and Paper Engineering,South China University of Technology, Guangzhou,5 Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, China

会议类型: 国际会议

会议名称: 4th ISETPP(第四届制浆造纸新技术国际研讨会)

会议地点: 广州

会议语种:英文

页码: 383-386

在线出版日期: 2010-11-08（万方平台首次上网日期，不代表论文的发表时间）