1. College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
2. Key Laboratory for Harmful Components and Tar Reduction in Cigarette of Sichuan Province, Chengdu 610100, China
3. Oil & Gas Fire Protection Key Laboratory of Sichuan Province, Chengdu 611731, China
4. Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, China