【摘要】 利用石油大学 (北京 )重质油加工国家重点实验室开发的超临界流体萃取分馏技术将大庆、辽河催化油浆分离得到多个窄馏分。从中间选出族组成 (饱和分 ,芳香分 ,胶质 +沥青质 )有代表性的 6个窄馏分 ,3个选自大庆催化油浆 ,3个选自辽河催化油浆 ,利用热台显微镜考察了它们的受热相分离行为。实验结果表明 ,高温时催化油浆中的芳香分有缩合生焦的倾向 ,较低温度下由于芳香分的强胶溶能力使得油浆生焦倾向减缓。在芳香分含量相同条件下 ,胶质沥青质含量高 ,油浆的生焦倾向就会增大更多还原

【Abstract】 Daqing and Liaohe FCC slurry oils were separated into narrow fractions by supercritical fluid extraction and fractionation(SFEF) technology developed by the State Key Laboratory of Heavy Oil Processing, University of Petroleum(Beijing) Six representative SFEF separated narrow fractions, among which three from Daqing FCC slurry oil and three from Liaohe FCC slurry oil, obviously distinctive in their group analysis data(saturates, aromatics, and resin + asphaltene), were chosen to investigate their phase separation behaviors when heated during the observation process by poly functional microscope Experimental results showed that under higher temperatures, the condensation of aromatics in FCC slurry oils tended to form coke, while under lower temperatures, coking was retarded due to the higher solvation of resin and with aromatics Coking tendency increased under higher contents of resin and asphaltene in slurry oil, even through the aromatics contents were at the same level更多还原