1. Key Laboratory of Petrochemical
Catalytic Science and Technology, Liaoning Shihua University, Fushun 113001, Liaoning, PR China
2. Petrochemical Research Institute, PetroChina Company Limited, 9 Dongzhimen North Street,
Dongcheng District, Beijing 100007, PR China
3. College of Environmental Science
and Engineering, Beijing Forestry University, Beijing 100083, PR China