精C_5饱和加氢Pd/Al_2O_3催化剂的制备

研究负载在Al2O3载体上的Pd催化剂对精C5饱和加氢反应的性能。以工厂精C5为原料,考察载体焙烧温度、Pd负载量和催化剂制备工艺对催化剂性能的影响。结果表明,载体最佳焙烧温度为700℃,Pd最佳负载质量分数为0.3%,Pd最佳负载时间为4 h,催化剂最佳焙烧温度为500℃,催化剂最佳焙烧时间为4 h,以此条件制备的催化剂进行C5饱和加氢评价,加氢效率不低于94%。

Preparation of Pd/Al2 O3 catalyst for fine C5 saturated hydrogenation

The properties of Pd/Al₂O₃ catalysts for fine C₅ saturated hydrogenation were studied.Using commercial fine C₅ as the raw material,the influence of carrier calcination temperatures,Pd loadings and catalyst preparation process on the catalyst performance was investigated.The results showed that the optimum preparation condition was as follows:carrier calcination temperature 700 ℃,Pd loading mass fraction 0.3%,Pd load time 4 h,catalyst calcination temperature 500 ℃ and roasting time 4 h. The catalyst prepared under the optimum preparation condition was evaluated,and its hydrogenation efficiency for C₅ saturated hydrogenation was ≥94%.