首页|Upgrading of Mackay River bitumen through co-aquathermolysis with lignin under mild conditions
Upgrading of Mackay River bitumen through co-aquathermolysis with lignin under mild conditions
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
In the present work, the catalytic co-aquathermolysis of Mackay River bitumen and lignin was performed at the temperature of not higher than 300 °C. The heteropoly acid (HPA) catalysts was used as the catalyst for co-aquathermolysis. The bitumen to lignin ratio, lignin solvent, and reaction temperature have been optimized. The properties of oil samples before and after reaction including viscosity, API°, SARA contents and average relative molecular weight have been determined. The results confirmed the synergistic effect in bitumen and lignin catalytic co-aquathermolysis. Compared with the bitumen aquathermolysis alone, the viscosity-reducing ratio and heavy fraction conversion ratio increased by 42.6 and 9.15 percentages, respectively, API° increased by 1.3, and molecular weight of asphaltene decreased by 199. The synergistic mechanism of co-aquathermolysis has been analyzed through Fourier transform infrared spectroscopy (FTIR) and oxygen content changes of aromatics. More oxygen-containing groups have appeared in the FTIR spectra, and the oxygen element content of aromatics increased. The complementation of endothermicity of bitumen thermal cracking and exothermicity of lignin pyrolysis provided the co-aquathermolysis with synergistic viscosity reduction effect. We hope that the results will cast a new light on Mackay River bitumen in situ or ground upgrading for its transportation and refining.
Mackay River bitumenLigninCo-aquathermolysisUpgrading
Xiao Qu、Guangqian Zhou、Chen Wang
展开 >
State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
NSTL
