作者机构:State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
相关基金:This work was financially supported by the National Natural Science Foundation of China (Nos. 21173269 and 21276277), the Ministry of Science and Technology of China (No. 2011BAK15B05), the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20130007110003).