The Kinetic Model of Simultaneous Catalytic Hydrolysis of Carbon Disulfide and Carbonyl Sulfide over Modified Walnut Shell Biochar

Abstract

In this study, the hyperbola kinetic model of simultaneous catalytic hydrolysis CS₂ and COS was investigated. Through the experimental results, it can be found that catalytic hydrolysis of CS₂ and COS is the controlling step for the whole reaction. Meanwhile, the theoretical calculation results showed that COS is easier to adsorb on the surface of catalyst than CS₂. The XPS results showed that H₂S was oxidized to elemental sulfur and sulfate was the main reason for the deactivation of the catalyst.