柴油加氢脱硫绝热反应动力学模型  

Kinetic Model for Adiabatic Reaction of Diesel Hydrodesulfurization

作　　者：陈文斌[1] 孙新格 江洪波[2] 秦康 鞠雪艳[1] 李明丰[1] 聂红[1] 韦业 CHEN Wenbin;SUN Xinge;JIANG Hongbo;QIN Kang;JU Xueyan;LI Mingfeng;NIE Hong;WEI Ye(Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China;Research Institute of Petroleum Processing, East China University of Science and Technology, Shanghai 200237, China)

机构地区：[1]中国石化石油化工科学研究院,北京100083 [2]华东理工大学石油加工研究所,上海200237

出　　处：《石油学报（石油加工）》2021年第6期1250-1257,共8页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家重点研发计划项目(2017YFB 0306600)基金资助。

摘　　要：研究了NiMo型催化剂在柴油加氢反应过程中的动力学规律,综合考虑硫化氢、氮化物和芳烃的抑制作用,建立了三集总加氢脱硫反应动力学模型。通过对反应过程中放热和温升的估算,建立了柴油绝热加氢脱硫反应动力学模型。根据模型计算了等温和绝热环境中物流性质沿反应器轴向的变化规律。结果显示,二者的变化规律存在明显差异,达到相同脱硫深度时,绝热条件中硫化物和氮化物前期脱除速率慢于等温条件。另外,通过模型详细描述了绝热条件各集总硫化物、氮化物和芳烃含量沿反应器轴向的变化规律,获得了各集总在反应器不同位置硫化物、氮化物和芳烃含量的定量数据,结果显示,硫化物、氮化物和芳烃含量各集总的变化趋势均不相同。This paper studies the kinetic law of NiMo catalyst in the process of diesel hydrodesufurization.A three-lump kinetic model of hydrodesufurization was established by comprehensively considering the inhibiting effect of hydrogen sulfide,nitride and aromatics.Then the adiabatic reaction kinetic model for diesel hydrodesulfurization was established based on the estimation of heat release and temperature rise in the reaction process.Later,the axial variation laws of feedstock properties along the reactor in isothermal and adiabatic atmospheres were calculated according to the model.The results show that there is significant difference in the variation laws abovesaid.When at the same depth of desulfurization,the early rate of removing sulfides and nitrides under adiabatic conditions is slower than that under isothermal conditions.Moreover,the axial variation law of the total content of hydrogen sulfide,nitride and aromatics lumps along the reactor under adiabatic conditions was described in detail through the model,and the quantitative data of the content of hydrogen sulfide,nitride and aromatics lumps at different positions of the reactor were obtained.The results show that the variation trends of sulfide,nitride and aromatics lumps are different.

关 键 词：柴油 加氢脱硫 反应动力学 模型 

分 类 号：O643.12[理学—物理化学]