期刊
PETROLEUM SCIENCE AND TECHNOLOGY
卷 31, 期 21, 页码 2211-2218出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10916466.2011.644016
关键词
catalytic aquathermolysis; heavy oil; nano-nickel; viscosity reduction
资金
- China Petroleum & Chemical Corporation
- Graduate School of China University of Petroleum
Nano-nickel catalyst was prepared in microemulsion system, and used in the viscosity reduction process of extra-heavy oil by aquathermolysis. The results showed that the nano-nickel had a good catalytic performance in the aquathermolysis, and the viscosity of extra-heavy oil San56-13-19 was reduced by 90.36% at 200 degrees C. The structure and group composition of the heavy oil were tested and analyzed by thin-layer chromatography-flame ionization detection, Fourier transform infrared spectroscopy, elemental analysis, vapor phase osmometer, and hydrogen-1 nuclear magnetic resonance before and after the aquathermolysis. It was found that the pyrolysis of asphaltene played a key role in viscosity reduction, and the O-containing products such as alcohol, carboxylate, and fatty acid can reduce the viscosity of heavy oil during the catalytic aquathermolysis.
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