[2A03-05] Interenational sess.(5)

[2A04] Depolymerization of Lignin by Using Ionic Liquid and Ethylene Glycol

○Mingming Peng¹, Manaka Nakabayashi¹, Eika W. Qian¹ (1. Tokyo University of Agriculture and Technology)

Recently, amounts of researches focus on lignin depolymerization and the application of its downstream derivatives. Various acid/base catalytic or noncatalytic methods, combined with oxidants or reducing agents, had been explored to depolymerize lignin. In the present studies, we explored the effects of different ionic liquids (ILs) on various lignin depolymerization in ethylene glycol (EG) using a continuous flow fixed-bed reactor. A high aromatics yield was obtained under low basicity environment. Besides, we also analyzed the factors influencing the condensation process of diverse fragments from lignin degradation and brought forward the possible lignin conversion mechanism.

Keywords:Lignin depolymerization, Ionic liquids, Ethylene glycol