煤基航天煤油基础油加氢脱金属工艺优化及动力学研究  

Process optimization and kinetics for hydrodemetallization of coal-based aerospace kerosene base oil

作　　者：郭青 范晓勇[1] 李冬[1] 崔楼伟[1] 符全军[2] 李晓东 Guo Qing;Fan Xiaoyong;Li Dong;Cui Louwei;Fu Quanjun;Li Xiaodong(School of Chemical Engineering,Northwest University,Xi’an Shaanxi 710069,China;Xi’an Aerospace Test Technology Research Institute,Xi’an Shaanxi 710100,China;State Energy Ningxia Coal Industry Co.,Ltd.,Yinchuan Ningxia 750011,China)

机构地区：[1]西北大学化工学院,陕西西安710069 [2]西安航天动力试验技术研究所,陕西西安710100 [3]国家能源集团宁夏煤业有限责任公司,宁夏银川750011

出　　处：《石油化工》2020年第9期892-897,共6页Petrochemical Technology

基　　金：国家自然科学基金项目(21978237);陕西省重点研发计划项目(2018ZDXM-GY-174);陕西省技术创新引导专项(2019CGHJ-11);西安市航天特种化工材料工程技术研究中心科技计划项目(165MEC2019-01)。

摘　　要：在小型固定床加氢装置上,进行了煤基航天煤油基础油加氢脱金属(HDM)实验,通过响应面分析法优化了HDM工艺条件,研究了反应压力、LHSV和反应温度对HDM反应的影响。根据实验数据,采用Levenberg-Marquardt法对各动力学参数拟合,建立了煤基航天煤油基础油HDM反应动力学方程。实验结果表明,在高温、高压和低LHSV条件下HDM反应达到了较好的脱除效果,且对HDM反应影响最大的因素是LHSV,其次是反应温度和反应压力。优化得到的HDM工艺条件为:反应压力11.64 MPa、LHSV1.6 h^-1、反应温度621.9 K;加氢后产品油中金属含量预期可降至1.28μg/g。煤基航天煤油基础油HDM反应为1.1级反应,活化能为87544 J/mol,模型相对误差为3.51%。Hydrodemetallization(HDM)of coal-based aerospace kerosene base oil was carried out in a small fixed-bed hydrogenation unit.The process conditions of HDM were optimized by the response surface methodology and the effects of reaction pressure,liquid hourly space velocity(LHSV),and reaction temperature on HDM were studied.According to the experimental data,Levenberg-Marquardt method was used in fitting the kinetics parameters and the kinetics equation of HDM of coal-based aerospace kerosene base oil was built.The result shows that the HDM reaction achieves a good effect under high temperature,high pressure,and low LHSV.The biggest factor affecting the HDM reaction is LHSV,followed by the reaction temperature and reaction pressure.The optimized HDM process conditions are reaction pressure of 11.64 MPa,LHSV of 1.6 h-1,and reaction temperature of 621.9 K,the metal content in product oil could be reduced to 1.28μg/g after hydrogenation.The HDM is a 1.1 order reaction and its activation energy is 87544 J/mol.The relative error of the model is 3.51%.

关 键 词：煤基航天煤油基础油 加氢脱金属 响应面分析法 动力学模型 

分 类 号：TQ032[化学工程]