NH_(3)对DCC原料油中多环芳烃选择性加氢饱和的影响  

Effect of NH_(3) on selective hydrogenation saturation of polycyclic aromatic hydrocarbons in DCC feedstock

作　　者：李明翔 潘柳依[1] 姚瑞清[1] 马文军 李辉 李稳宏[1] LI Ming-xiang;PAN Liu-yi;YAO Rui-qing;MA Wen-jun;LI Hui;LI Wen-hong(School of Chemical Engineering,Northwest University,Xi’an 710069,China;Shaanxi Nonferrous Tianhong Ruike Silicon Material Co.,Ltd.,Yulin 719000,China;Shaanxi Petrochemical School,Xi’an 710061,China)

机构地区：[1]西北大学化工学院,陕西西安710069 [2]陕西有色天宏瑞科硅材料有限责任公司,陕西榆林719000 [3]陕西省石油化工学校,陕西西安710061

出　　处：《应用化工》2023年第2期404-408,414,共6页Applied Chemical Industry

基　　金：陕西省重点研发计划(S2022-YF-YBGY-1027)。

摘　　要：采用固定床反应器,对催化裂解柴油(DCC)在NiMoP/Al_(2)O_(3)催化剂上进行选择性加氢,研究NH_(3)浓度、反应温度、液时空速和二段加氢的反应结果。结果表明,一段加氢,在NH_(3)浓度为5%时,温度360℃,反应压力为6.4 MPa,空速2.0 h^(-1),氢油比600时,多环芳烃饱和率为88.26%,单环芳烃选择性为93.17%;二段加氢,在第2反应器温度为360℃,反应压力为6.4 MPa,体积空速为2.0 h^(-1),氢油比600时,多环芳烃饱和率达到最高97.21%。Catalytic cracking diesel(DCC)was selectively hydrogenated on NiMoP/Al_(2)O_(3)catalyst in a fixed bed reactor.The reaction results of NH_(3)concentrations,reaction temperatures,liquid space-time velocities and two-stage hydrogenation were studied.The results show that when the concentration of NH_(3)is 5%,the temperature is 360℃,the reaction pressure is 6.4 MPa,the space velocity is 2.0 h^(-1),and the hydrogen oil ratio is 600,the saturation rate of polycyclic aromatic hydrocarbons is 88.26%,and the selectivity of monocyclic aromatic hydrocarbons is 93.17%.For the second stage hydrogenation,when the temperature of the second reactor is 360℃,the reaction pressure is 6.4 MPa,the volume space velocity is 2.0 h^(-1),and the hydrogen oil ratio is 600,the saturation rate of polycyclic aromatic hydrocarbons reaches the highest 97.21%.

关 键 词：催化裂解柴油 选择性加氢 固定床反应器 芳烃饱和率 

分 类 号：TQ519[化学工程]