Experimental Study on Production of Naphthenic Base Oil Through Hydrogenation of Direct Coal Liquefaction Oil
CAO Xueping1, SHAN Xiangen1, ZHANG Angui2, AN Liangcheng2, WANG Hongxue1, Gao Shansong1
1. Shanghai Research Institute of China Shenhua Coal to Liquid and Chemical Company Limited, Shanghai 201108, China;
2. Ningxia Coal Industry Limited Liability Company of National Energy Group, Yinchuan 750411, China
Abstract：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-1 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.
CAO Xueping1,SHAN Xiangen1,ZHANG Angui2 et al. Experimental Study on Production of Naphthenic Base Oil Through Hydrogenation of Direct Coal Liquefaction Oil[J]. Chemical Reaction Engineering and Technology, 2021, 37(6): 513-519.
