催化裂化柴油管式液相加氢的实验研究  

Experimental Study on Liquid-Phase Hydrogenation of LCO in Tubular Reactor

作　　者：李华[1,2] 汤云超[1] 曾志煜 翁惠新[1] 王基铭[1,3] 

机构地区：[1]华东理工大学石油加工研究所,上海200237 [2]中国石化长岭分公司,湖南岳阳414012 [3]中国石油化工集团公司,北京100728

出　　处：《石油学报（石油加工）》2016年第1期7-13,共7页Acta Petrolei Sinica(Petroleum Processing Section)

摘　　要：采用管式反应器实验装置进行催化裂化柴油（LCO）液相加氢反应。在单反应管模式下,考察了反应压力、混氢量、空速、温度对加氢反应的影响及混氢量对催化剂床层热点温度的影响;在双反应管串联模式（中间补氢）下,考察了不同混氢量对加氢反应的影响。结果表明,单反应管催化裂化柴油液相加氢反应较为适宜的条件为压力6.5 MPa、混氢量（质量分数）0.56%、空速2.0h-1、温度360℃;管式反应器液相加氢的催化剂床层热点温差在10~20℃之间,热点温度出现在床层高度的15%~30%范围,最为合适的补氢点应在热点温度高峰出现下落趋势处。采用双反应管串联装置进行催化裂化柴油液相加氢反应,可使脱硫率、脱氮率均达到90%以上。The liquid-phase hydrogenation of LCO in tubular reactor was studied. In single tubular mode not only the influences of reaction pressure, temperature, LHSV and mixing amount of hydrogen on hydrogenation reaction, but also the effect of mixing amount of hydrogen on peak temperature in catalyst bed were investigated. In double tubular mode the influence of mixing amount of hydrogen on hydrogenation reaction was investigated. Results suggested that the suitable conditions of hydrotreating in the single tubular reactor were pressure of 6.5 MPa, mixing amount of hydrogen of 0. 56% （mass fraction）, LHSV of 2.0 h 1 and temperature of 360℃. The peak temperature with the difference in the range of 10-20℃ appeared in the catalyst bed of 15%- 30%. The most suitable point of adding hydrogen should be the place where peak temperature began to fall down. By using the unit with double tubular reactors both desulfurization and denitrogenation rates of LCO hydrogenation reached more than 90%.

关 键 词：催化裂化柴油 管式反应器 液相加氢 混氢器 

分 类 号：TE624[石油与天然气工程—油气加工工程]