1. Research Engineer, State Key Laboratory of Heavy Oil Processing, China Univ. of Petroleum, 271, Bei’er Rd., Dongying, Shangdong Province 257061, People’s Republic of China.
2. Research Engineer, China National Offshore Oil Corporation, No. 25, Chaoyangmenbei Dajie, Dongcheng District, Beijing 100010, People’s Republic of China.
3. Professor, State Key Laboratory of Heavy Oil Processing, China Univ. of Petroleum, 271, Bei’er Rd., Dongying, Shangdong Province 257061, People’s Republic of China (corresponding author).