1. College of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, P. R. China
2. Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, P. R. China
4. Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
5. College of Chemistry and Pharmaceutical Engineering, Huanghuai University, Zhumadian 463000, P. R. China