煤直接液化油催化加氢制备环烷基油  

Experimental Study on Production of Naphthenic Base Oil Through Hydrogenation of Direct Coal Liquefaction Oil

作　　者：曹雪萍[1] 单贤根[1] 张安贵 安良成 王洪学[1] 高山松[1] CAO Xueping;SHAN Xiangen;ZHANG Angui;AN Liangcheng;WANG Hongxue;Gao Shansong(Shanghai Research Institute of China Shenhua Coal to Liquid and Chemical Company Limited,Shanghai 201108,China;Ningxia Coal Industry Limited Liability Company of National Energy Group,Yinchuan 750411,China)

机构地区：[1]中国神华煤制油化工有限公司上海研究院,上海201108 [2]国家能源集团宁夏煤业有限责任公司,宁夏银川750411

出　　处：《化学反应工程与工艺》2021年第6期513-519,共7页Chemical Reaction Engineering and Technology

基　　金：宁夏回族自治区重点研发计划项目(2018BDE02057)。

摘　　要：在300 m L连续加氢实验装置上,以神华鄂尔多斯直接液化工厂生产的加氢稳定油为原料,以加氢精制剂RNC-2为催化剂,考察了不同反应温度和体积空速对加氢产物性质及加氢精制反应过程的影响。结果表明:升高反应温度或降低体积空速,芳烃加氢饱和反应过程中的氢耗增大,产品油的密度、运动黏度及馏程降低;从不同反应条件加氢产品油中芳烃组成可以看出,芳烃加氢饱和反应过程中,总芳烃饱和率随反应温度的升高而升高、随体积空速的增大而降低,同时产物中多环芳烃饱和率>双环芳烃饱和率>单环芳烃饱和率,当反应温度为395℃、体积空速为0.7 h;时,总芳烃饱和率达到70.17%,同时加氢产品油中总环烷烃含量高达70.5%;煤直接液化加氢稳定油经过加氢精制反应后,其多环芳烃的质量分数均低于1%,硫和氮元素含量均低于10 mg/L,可用于制备高附加值环境友好型环烷基基础油。The catalytic hydrogenation experiments of the coal liquefaction hydrogenation stabilized oil were carried out under different conditions by using hydrotreatingcatalyst.The influence of temperature and liquid space velocities were investigated in a 300 mL continuous hydrogenation experimental device and the properties of hydrogenated products were examined.It was found that the hydrogen consumption in the reaction process and the density,kinematic viscosity and distillation of range of hydrogenated product oil were positively related to temperature and negatively related to the liquid space velocity.From the composition of hydrogenated product oil under different reaction conditions,the aromatics saturation rate increased with temperature and decreased with the liquid space velocity.Meanwhile,the polycyclic aromatics saturation rate was higher than the di-aromatics saturation rate,which was higher than the mono-aromatics saturation rate during these hydrogenation experiments.The aromatics saturation rate of product oil increased to 70.17%and the mass fraction of naphthene reached to 70.5%under the reaction condition of 395℃reaction temperature,15 MPa reaction pressure and 0.4 h;liquid space velocity.Because the polycyclic aromatic hydrocarbon content was less than 1%,the sulfur and nitrogen content were both less than 10 mg/L,the hydrogenated product oil can be used to prepare environmental friendly naphthenic oil.

关 键 词：煤直接液化油 环烷基油 芳烃饱和 加氢精制 

分 类 号：TQ529.1[化学工程—煤化学工程]