Efficient and Product-controlled Depolymerization of Lignin Oriented by Metal Chloride Cooperated with Pd/C
An efficient lignin depolymerization process with highly controllable product distribution was presented using metal chloride (MClx) cooperated with Pd/C.The catalytic performances of MClx were investigated.The effect of reaction conditions on the lignin depolymerization and products distribution were also studied.Results showed that more than 35.4% yield of phenolic monomer including 7.8% phenols and 1.1% guaiacols could beobtained under optimized condition.And the product distribution can be efficiently con-trolled by the modification of the metal cation through different pathway of Lewis acid catalysis and coordination catalysis.Furthermore, the Pd/C catalyst showed an excellent recyclability,whereno significant loss of the catalytic activity was exhibited after 3 runs.Moreover, the product control mechanism was proposed.
lignin product-controlled guaiacols phenols phenolic monomer
Riyang Shu Jinxing Long Zhengqiu Yuan Qi Zhang Tiejun Wang Chenguang Wang Longlong Ma
Key Laboratory of Renewable Energy,Guangzhou Institute of Energy Conversion,Chinese Academy of Scien Key Laboratory of Renewable Energy,Guangzhou Institute of Energy Conversion,Chinese Academy of Scien
国内会议
广州
英文
307-330
2015-05-01（万方平台首次上网日期，不代表论文的发表时间）