1. College of Energy; Xiamen University; Xiamen 361102 P.R.China
2. Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass; Xiamen 361102 P.R. China
3. Xiamen Key Laboratory of Clean and High-valued Utilization for Biomass; Xiamen 361102 P.R. China
4. Henan Key Lab of Biomass Energy; Huayuan Road 29 Zhengzhou Henan 450008 P.R. China