Supercritical fluid extraction and fractionation (SFEF) are used to separate Daqing and Liaohe decanted oils into a number of narrow fractions.

• 摘要以大庆和辽河油浆为研究对象，采用超临界流体萃取分馏技术将其切割成窄馏分，分析了油浆窄馏分的性质及组成随收率变化的规律。