The recycled oil from coal liquefaction was separated into three fractions(saturates,aromatics and polar fraction) by liquid chromatograph according to group composition.Each fraction was analyzed qualitatively by 1H-...The recycled oil from coal liquefaction was separated into three fractions(saturates,aromatics and polar fraction) by liquid chromatograph according to group composition.Each fraction was analyzed qualitatively by 1H-NMR spectra,then the aromatic fraction was characterized using gas chromatograph/mass spectrometer(GC-MS).It shows that liquid chromatograph is well used to separate coal liquefaction oil with high repeatability and high recovery yield.Aromatic fraction with carbon number from C10 to C21 mainly includes dicyclic-,tricyclic-and tetracyclic-hydrogenation aromatic compounds such as tetrahydronaphthalene,hydrophenanthrene,hydropyrene and their alkyl substitution compounds and so on.展开更多
以催化裂化轻循环油(LCO)为原料,利用NiMo/Al_2O_3催化剂,在100 m L固定床加氢装置上考察了反应温度、反应压力、氢油比、液时空速(LHSV)等工艺条件对精制油性质的影响。结果表明,在加氢反应温度、反应压力、氢油比(体积比)、LHSV依次为...以催化裂化轻循环油(LCO)为原料,利用NiMo/Al_2O_3催化剂,在100 m L固定床加氢装置上考察了反应温度、反应压力、氢油比、液时空速(LHSV)等工艺条件对精制油性质的影响。结果表明,在加氢反应温度、反应压力、氢油比(体积比)、LHSV依次为330℃,6.0 MPa,1 500∶1,1.0 h-1的优选工艺条件下,LCO加氢精制脱硫率为97.9%,脱氮率为98.9%,四氢化萘质量分数由14.81%提高至39.29%,多环芳烃质量分数则由51.51%降低至26.32%。展开更多
文摘The recycled oil from coal liquefaction was separated into three fractions(saturates,aromatics and polar fraction) by liquid chromatograph according to group composition.Each fraction was analyzed qualitatively by 1H-NMR spectra,then the aromatic fraction was characterized using gas chromatograph/mass spectrometer(GC-MS).It shows that liquid chromatograph is well used to separate coal liquefaction oil with high repeatability and high recovery yield.Aromatic fraction with carbon number from C10 to C21 mainly includes dicyclic-,tricyclic-and tetracyclic-hydrogenation aromatic compounds such as tetrahydronaphthalene,hydrophenanthrene,hydropyrene and their alkyl substitution compounds and so on.
