顺酐加氢制1,4-丁二醇负载型Ni-Mo催化剂的研究

研究了在负载型 Ni 催化剂中引入 Mo 后,对顺酐高压液相加氢反应生成四氢呋喃和1,4-丁二醇活性与选择性的影响。试验结果表明,添加 Mo 能显著提高催化剂的活性和生成1,4-丁二醇的选择性。采用 XRD 测定方法,考察了负载型 Ni-Mo 催化剂的结构,证实 Ni-Mo 形成了固溶体。TPR的研究结果表明,金属组份与载体之间存在着相互作用。

Supported Ni-Mo Catalyst for Hydrogenation of Maleic Anhydride to 1,4-Butanediol

The effect of introducing Mo into supported Ni catalyst on catalyst activity and selectivity for the liquid-phase hydrogenation o(?) maleic anhydride to tetrahy-drofuran and 1,4-butanediol was studied.It was found that the introduction of Moto Ni catalyst obviously favored formation of 1,4-butanediol.The supported Ni-Mocatalyst was also investigated by X-ray diffraction and temperature-programmed-reduction.It was showed that Mo incorporated with Ni crystal forming a solid sol-ution.Simple relationships existed between the Mo/Ni ratio,the crystal size andthe lattice constants of Ni-Mo solid solution.Experimental results indicated thatthere were intereactions between the metal and the support,and the reductionbehavior of Ni-Mo catalyst was different from that of Ni-catalyst.