Asphaltenes From Tahe and Liaohe Oils: Structural Analysis and Their Interaction with Comb-Type Copolymers

Tuesday, April 3, 2012
Third Level Foyer (George R. Brown Convention Center)
Tao Yang, Jun Xu and Xuhong Guo, School of Chemical Engineering, East China University of Science and Technology, Shanghai, China

In this work, asphaltenes were extracted from Liaohe and Tahe crude oils following ASTM D6560-00/IP143. By means of 1H NMR, XRD and FTIR, their aromaticity, aromatic sheets’ size, and the number in a stack cluster were determined. Comb-type poly(maleic anhydride amide–co–α–olefin–co–styrene)s (MASC) were synthesized with different ratio of styrene/α-octadecene, and their effect on the behavior of asphaltenes in model oil consisting 4 wt% hexatriacontane in decane were investigated. The match of aromaticity between MASC and asphaltenes is of critical importance to disperse asphaltenes and thus improve the flow ability of crude oils.

Extended Abstract: File Not Uploaded