轻循环油制备单环芳烃工艺研究  

Study on conversion of monocyclic aromatics from light circulating oil(LCO)

作　　者：魏子东 淡勇[1] 杨东元 潘柳依[1] 王军峰[2] 孙育斌 刘俊霞 李稳宏[1] WEI Zi-dong;DAN Yong;YANG Dong-yuan;PAN Liu-yi;WANG Jun-feng;SUN Yu-bin;LIU Jun-xia;LI Wen-hong(College of Chemical,Northwest University,Xi’an 710069,China;Shaanxi Yanchang Petroleum(Group) Co.,Ltd.,Xi’an 710061,China)

机构地区：[1]西北大学化工学院,陕西西安710069 [2]陕西延长石油(集团)有限责任公司,陕西西安710061

出　　处：《应用化工》2021年第10期2706-2710,共5页Applied Chemical Industry

基　　金：陕西省科技厅项目(2018ZDXM-GY-161);延长集团炼化公司横向委托项目(JT5719SKF0002)。

摘　　要：以轻循环油(LCO)为原料,在NiMoP/Al_(2)O_(3)催化剂,反应压力6 MPa,体积空速1.0 h^(-1),氢油比600条件下,探索单管、双管反应器中反应温度和空速对LCO加氢结果影响。结果表明,加氢效果双管反应器明显优于单管反应器,在第一反应器中采用1.0 h^(-1)低空速,有利于维持较高单环芳烃选择性,在第二反应器中采用3.0 h^(-1)高空速,有利于多环芳烃饱和率的提高,在300℃条件下,单环芳烃选择性达到71.4%,单环芳烃收率达51.4%,多环饱和率达83.4%。Taking light cycle oil as raw material,the influence law of reaction temperature and airspeed change in the single-tube and double-tube reactors on hydrogenation results was explored respectively under the conditions of NiMoP/Al_(2)O_(3) catalyst,reaction pressure 6 MPa,volume airspeed 1.0 h and hydrogen-oil ratio 600.The results show that the hydrogen effect of the double-tube reactor is better than the single tube reactor in the first reactor using 1.0 h^(-1) low airspeed,it is conducive to maintain high monocylic aromatics selective,in the second reactor using 3.0 h^(-1) high airspeed,it is conducive to the increase of polycyclic aromatic hydrocarbon saturation rate under the condition of 300℃,monocylic aromatics selectivity of 71.4%,monocylic aromatics yield reached 51.4%,polycyclic saturation rate was 83.4%.

关 键 词：轻质循环油 单环芳烃 加氢饱和 两段加氢 

分 类 号：TQ519[化学工程]