胜利VGO缓和加氢尾油作蒸汽裂解原料的研究  

A Study of the Heavy Fraction of Mild Hydrocracking Products of Shengli VGO as Steam Cracking Feedstock

作　　者：茅文星[1] 曾清泉[1] 许士兴[1] 张慧立 

机构地区：[1]化工部北京化工研究院,北京100013

出　　处：《石油化工》1990年第9期592-596,共5页Petrochemical Technology

摘　　要：胜利减压柴油(VGO)缓和加氢裂化(MHC)尾油(>350℃馏份),在模拟工业管式裂解炉上进行蒸汽裂解试验,考察了不同转化率 VGO-MHC 裂解性能,测定其产物分布,同时评价了加氢尾油结焦情况。试验结果表明,乙烯产率比胜利 VGO 直接裂解增加5—8%,三烯收率增加10%左右,高于胜利石脑油、轻柴油(AGO)的裂解产率。尾油结焦趋势低于胜利 VGO、AGO。VGO-MHC 的尾油是优质的裂解原料。Tail fractions(>350℃)of mild hydrocracking products of Shengli VGO were studied in a steamcracking system simulating the performance of commercial units.The product yields,steamcracking performance and coking tendency of VGO-MHC were evaluated at different conversion rates.The tail fraction is an excellent feedstock for steamcracking with ethylene and light olefin yields being 6—8% and about 10% higher respectively than those of straight run VGO.They are even higher than those of Shengli naphtha and AGO.The coke deposition in the convection tubes of the cracking furnace for VGO-MHC is much less than that for Shengli VGO,and even less than those for Shengli AGO.

关 键 词：乙烯 VGO MHC 尾油 蒸汽裂解 原料 

分 类 号：TQ221.211[化学工程—有机化工]