焦化蜡油加氢精制工艺研究  

Study on Hydrofining Process of Coker Gas Oil

作　　者：王杰[1] 雷小佳[1] WANG Jie;LEI Xiao-jia(School of Mechanical and Electrical Engineering,Hunan Petrochemical Vocational Technology College,Yueyang 414001,China)

机构地区：[1]湖南石油化工职业技术学院机电工程学院,岳阳414001

出　　处：《当代化工》2021年第8期1818-1821,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金面上项目(项目编号:21176248)。

摘　　要：辽河油田某炼油厂生产的焦化蜡油含氮量和含硫量较高,直接催化裂化反应的效果较差,需要进行一定的预处理,因此,开展了焦化蜡油加氢精制工艺优化实验研究。以目标炼油厂的焦化蜡油为研究对象,通过改变反应条件,考察了催化剂类型、实验温度、实验压力、氢油比以及反应空速对焦化蜡油加氢精制处理后脱氮率和脱硫率的影响。结果表明:随着反应温度、压力以及空速的增大,焦化蜡油的脱氮率和脱硫率逐渐升高;而随着氢油比的逐渐增大,焦化蜡油的脱氮率和脱硫率呈现出先增大后降低的趋势,存在一个最佳氢油比,使脱氮率和脱硫率达到最佳;辽河油田焦化蜡油加氢精制实验的最佳工艺条件为:催化剂PSR-102,温度380℃,压力12 MPa,氢油比1 000,反应空速0.8 h-1。在此实验条件下,焦化蜡油的脱氮率可以达到60%以上,脱硫率可以达到95%以上,达到了良好的精制效果。The coker gas oil produced by a refinery in Liaohe Oilfield has high nitrogen and sulfur content, and the effect of direct catalytic cracking reaction is poor, so the pretreatment is needed. Therefore, the experimental study on hydrofining process optimization of coker gas oil was carried out. By changing the reaction conditions, the effect of catalyst type, temperature, pressure, hydrogen-oil ratio and reaction space velocity on the denitrification rate and desulfurization rate of coker gas oil after hydrofining was investigated. The results showed that the denitrification rate and desulfurization rate of coker gas oil increased with the increase of reaction temperature, pressure and reaction space velocity;With the increase of hydrogen-oil ratio, the denitrification rate and desulfurization rate of CGO first increased and then decreased, and there was an optimal hydrogen-oil ratio to achieve the best denitrification rate and desulfurization rate;the optimal process conditions of coker gas oil hydrofining in Liaohe oilfield were as follows: the catalyst PSR-102, the temperature 380 ℃, the pressure 12 MPa, and the hydrogen-oil ratio 1 000,the reaction space velocity 0.8 h-1. Under these conditions, the denitrification rate of CGO was more than 60%, the desulfurization rate was more than 95%, and the refining effect was good.

关 键 词：辽河油田 焦化蜡油 加氢处理 催化剂 工艺条件 

分 类 号：TE[石油与天然气工程]