Ni-Mo/TiO_2-Al_2O_3催化剂上柴油加氢脱硫反应动力学研究  

Study on kinetics of hydrogen desulfurization of diesel using Ni-Mo/TiO_2-Al_2O_3 as catalyst

作　　者：王继元[1] 

机构地区：[1]中国石化扬子石油化工有限公司南京研究院,江苏南京210048

出　　处：《化学工业与工程技术》2013年第3期23-27,共5页Journal of Chemical Industry & Engineering

摘　　要：以混合柴油为原料,采用高压滴流床反应器,在反应温度280～360℃、氢分压5～7 MPa、氢油体积比300～900、液时空速1～6 h-1的条件下,考察了柴油在Ni-Mo/TiO2-Al2O3催化剂上的加氢脱硫反应规律,并建立了柴油加氢脱硫经验型模型。采用Levenberg-Marquard优化方法,对实验数据进行回归,确定了反应动力学模型中的有关参数,得到的反应级数为2.9,加氢脱硫反应的表观活化能为143 613 J/mol,同时得到了在实验条件范围内Ni-Mo/TiO2-Al2O3催化剂上柴油的加氢脱硫动力学方程。经检验,模型计算结果与实验数据吻合良好。The reaction rule of hydrogen desulfurization of diesel using Ni-Mo/TiO2-Al2O3 as catalyst is studied and the experiential model is established in high pressure trickle bed reactor by using mixed diesel as material. The reaction conditions are as follows： the reaction temperature is 280 - 360℃, the hydrogen pressure is 5-7 MPa, the volume ratio of hydrogen to oil is 300-900 and the liquid hourly space velocity （LHSV） is 1-6 h-1. The experimental data are regressed by means of Levenberg-Marquard optimization method, and the relevant parameters of reaction kinetic model are obtained as follows： the reaction order is 2.9, the apparent activation energy is 143 613 J/mol. The kinetic model of hydrogen desulfurization of diesel using Ni-Mo/TiO2-Al2O3 as catalyst in the range of experimental conditions is obtained. The calculation results by model tally well with experimental data.

关 键 词：柴油 加氢脱硫 动力学方程 负载型催化剂 

分 类 号：TE621[石油与天然气工程—油气加工工程]