1. College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, People's Republic of China
2. Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning 530004, China
3. College of Electrical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, People's Republic of China