1. School of Mechanical Engineering Chengdu University Chengdu 610106 P. R. China
2. College of Engineering Northeast Agricultural University Harbin 150030 P. R. China
3. Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 P. R. China
4. Key Laboratory for Green Chemical Process of Ministry of Education School of Chemical Engineering and Pharmacy Wuhan Institute of Technology Wuhan Hubei P. R. China