The Study of the Preparation of Catalysts for Carbonyl Sulfide Hydrolysis under Moderate Temperature

Abstract

Multifunctional composite catalyst for carbonyl sulfide hydrolysis under moderate temperature was prepared by impregnation method. The hydrolysis and deoxidization ability of the prepared catalyst was investigated in a fixed bed reactor. It was found that deoxidization ability of the prepared catalyst was raised by the increase of the content of potassium loading catalyst and reaction temperature. And the concentration of H 2 S had no effect on deoxidization while COS improved the deoxidization ratio. And deoxidization rates were nearly scaled up with concentration of H 2. The hydrolysis ability was decreased by the decrease of the surface basicity.

Recent Solutions for Efficient Carbonyl Sulfide Hydrolysis: A Review

“…Not always does the addition of other components have a positive effect on the reaction performances of the hydrolysis catalyst. Xu et al 62 reported a study on the promotion of Al 2 O 3 with Mo and K, with the aim of improving the deoxidization ability of the catalyst. In fact, the authors observed that the presence of oxygenated compounds in the reacting system may lead to sulfidation of the catalyst.…”