中文摘要：

引言 木质素是由含氧苯丙烷单元构成的一种复杂三维网状聚合物,是构成植物骨架的主要成分之一。在自然界中,木质素的储量仅次于纤维素,估计每年全世界由植物生长可产生1500亿吨木质素[1]。

英文摘要：

With benzyl phenyl ether（BPE） as a model compound of lignin,catalytic hydrogenolysis kinetics of benzyl phenyl ether via hydrogen-transfer was studied at the temperature of 413.15—443.15 K,using toluene-4-sulfonic acid（PTSA）as catalyst and 1,2,3,4-tetrahydronaphthalene as hydrogen-donor solvent.Batch reactors with and without microwave-assisted were employed.The first order kinetic model was used to fit the kinetics data.The results indicated that for microwave-assisted reactor,conversion of BPE was greatly improved with increase of PTSA and 1,2,3,4-tetrahydronaphthalene concentration.When both concentrations are 0.1 g·ml-1,apparent activation energies of BPE hydrogenolysis reaction estimated were 52.45 kJ·mol-1 for microwave-assisted reactor and 87.82 kJ·mol-1 for batch one,which means that microwave can make activation energy of hydrogenolysis reaction greatly decrease.This work may provide an alternative way for large-scale utilization of lignin.