不同催化剂体系上的1-早基萘加氢饱和反应规律

摘要

以硫化态CoMo∕γ-Al2 O3，NiW∕γ-Al2 O3，NiMo∕γ-Al2 O3，NiMoW∕γ-Al2 O3为催化剂，1-甲基萘为加氢反应的模型化合物，利用高压加氢微型反应器考察在不同类型催化剂体系上1-甲基萘的加氢饱和反应规律。结果表明：对1-甲基萘的芳烃饱和性能，Ni-Mo-W型最优，Ni-Mo 型、Ni-W型次之，Co-Mo 型最低；催化剂的活性越高则1-甲基萘的芳烃饱和越容易达到热力学平衡，对压力的变化越不敏感；1-甲基萘的加氢饱和优先发生在不带甲基的芳环上，产物中5-甲基四氢萘的质量分数约为1-甲基四氢萘的2倍。%Using 1-methylnaphthalene as a model compound and sulfided CoMo∕γ-Al2O3,NiW∕γ-Al2O3,NiMo∕γ-Al2O3,NiMoW∕γ-Al2O3 as catalysts,the hydrogenation saturation performance of 1-methylnaphthalene on the four different catalysts was studied using a high pressure hydrogenation mi-cro-reactor.It is found that the NiMoW∕γ-Al2O3 catalyst is with the best saturation performance for 1-methylnaphthalene and the CoMo is the lowest.The higher the activity is,the easier the aromatic satu-ration of 1-methylnaphthalene is to reach the thermodynamic equilibrium and the less sensitive to the change of reaction pressure.In the products the amount of 5-methyl tetralin is about as twice as 1-methyl tetralin.