介质阻挡低温等离子体法辅助制备钼钴基催化剂及其应用研究

Mo/Co/ZSM-5 Catalyst Prepared in Atmospheric Pressure Using Cold Plasma and Application

摘要:

论文对介质阻挡低温等离子体法辅助制备催化剂的方法进行了研究。利用X射线衍射分析,热重分析,扫描电子显微镜等方式对催化剂进行分析,实验表明等离子体法和传统焙烧处理制备的催化剂性能相近,并且利用介质阻挡低温等离子体方式处理的催化剂在预处理速度,催化剂微观颗粒尺寸小,分散度好等方面均优于传统焙烧的处理方式。预处理后的催化剂表面活性更有利于合成气制备液体烃类燃料。

Abstract:

A catalyst preparation method using dielectric barrier discharge (DBD) plasma was investigated in this paper. The results indicated that DBD plasma is good method to prepare Mo/Co/K/ZSM-5 catalysts in a rapid and efficient way. The DBD plasma method has similar performance with the traditional roasting method using X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscope (SEM), however, the former could obtained smaller size of particles and low agglomeration degrees. The activity tests also showed that the catalysts prepared by DBD plasma have higher activities towards synthesis of hydrocarbon (C5+) directly from synthesis gas than those obtained by the traditional roasting method.