摘要
按照柴油中不同类型硫化物的加氢反应速度和反应途径,将硫化物分为4种类型,研究了柴油深度加氢脱硫反应的动力学,建立了机理-经验混合型四集总深度加氢脱硫反应动力学模型,并得到加氢脱硫反应网络和相应的反应速率方程组。采用标准四阶龙格-库塔方法计算微分方程组,用工艺试验结果回归优化反应动力学方程参数,并用3种不同原料油对动力学模型预测精度和适用性进行考察,结果表明,原料油为直馏柴油或混合柴油时,可生产硫质量分数小于10μg/g的目标产品,该模型预测反应温度与试验实测反应温度相差小于5℃,模拟结果满足预测要求,可为装置工艺条件的优化提供合理的预测结果,该模型具有很好的应用前景。
The diesel deep hydrodesulfurization reaction was studied. The sulfides in diesel can be divided into four categories according to the reaction speed and route. The mechanism-experience hybrid HDS reaction kinetics model is established by using four lump. The desulfurization reaction network and reaction rate equations are obtained. The standard fourth-order Runge-Kutta method is used to calculate the differential equations. The kinetics parameters are fitted and optimized with the process test results. The accuracy and adaptability of kinetics model are tested with three different feed oils. The results show that,when straight-run diesel or mixed diesel is used as feedstock,the product with sulfur lower than 10 ppm can be produced. The prediction and the experimental temperature difference is less than 5 ℃. The simulation results meet the requirement of prediction,and the kinetics model can provide reasonable prediction for optimizing the process conditions,and has a good application prospect.
出处
《炼油技术与工程》
CAS
2015年第2期39-42,共4页
Petroleum Refinery Engineering
关键词
柴油
加氢脱硫
集总
动力学
diesel
hydrodesulfurization
lump
kinetics
作者简介
李士才，工程师，2001年毕业于大连理工大学化学工程专业，主要从事加氢工艺技术研究与开发工作。联系电话：024—56389564，E-mail：lishicai．fshy@sinopee．com。
