蜡下油/加氢裂化尾油混合原料的裂解性能

以蜡下油/加氢裂化尾油混合物作为蒸汽裂解制乙烯装置原料，利用蒸汽裂解模拟试验装置研究其裂解性能，考察了蜡下油的掺入量、裂解温度和水油质量比对目标烯烃产物收率的影响。蜡下油/加氢裂化尾油混合原料的最佳蒸汽裂解工艺条件为：蜡下油掺入质量分数20%，裂解温度820 ℃，水油质量比0.75,此条件下产物乙烯、丙烯的收率分别为34.3%和14.65%。

STEAM CRACKING PERFORMANCE OF FOOTS OIL / HYDROCRACKING TAIL OIL MIXED FEEDSTOCK

The steam cracking performance of the mixture was studied by using the mixture of foots oil and hydrocracking tail oil as feedstock of steam cracking unit for producing ethylene, on a steam cracking simulation test device. The effects of foots oil amount, cracking temperature and water/oil mass ratio on the yield of target olefins were investigated. The results show that the optimum steam cracking conditions are as follows: the mass fraction of foots oil is 20%, the cracking temperature is 820 ℃, and the water/oil mass ratio is 0.75. Under these conditions, the yields of ethylene and propylene were 34.3% and 14.65%, respectively.