轻石脑油催化加氢脱芳烃技术研究

实验评价了两种加氢催化剂的活性，并用优选出的催化剂对轻石脑油一催化重整抽余油进行了催化加氢脱芳烃实验。结果表明，QG-4和JSH两种催化剂均具有良好的加氢催化活性，但QG-4反应活性更高，脱芳效果更好，其在反应压力和反应温度分别为7MPa和450℃左右时可达到最佳活性；采用QG-4催化剂，对加氢操作参数进行优化，发现当反应压力为1．37MPa、反应温度为171℃、空速为2．0h^-1、氢油体积比为400时，可获得理想的脱芳效果及合理的成本投入，此时QG-4可将芳烃含量9．76×10^3mg／L降到1mg／L以下，脱芳效果明显。

Study on Catalytic Hydrogenation Dearomatization Technology of Light Naphtha

The activity of two hydrogenation catalysts is evaluated, and catalytic hydrogenation dearomatization experiments of light naphtha-catalytic reforming raffinate oil are done. The results indicate that both catalysts of QG-4 and JSH have good reaction activity, and QG-4 has higher reaction activity and better dearomatization effect. Under the condition of 7MPa and 450℃, QG-4 has the maximum activity. The hydrogenation operating parameters are optimized using QG- 4 catalyst, the perfect dearomatization effect and reasonable cost could be acquired under the experiment condition when the reaction pressure is 1.37MPa, reaction temperature is 171℃, the space velocity is 2h-1, and the hydrogen oil ratio is 400. At that time, the QG-4 hydrogenation catalyst can decrease the aromatic content from 9.76×103mg/L to 1mg/L below.