Development of Shift Catalyst Reactive at Low Temperature in Coal-Fired Power Generation for Next Generation

In the water-gas shift (WGS) catalyst which MoS₂ is an active site, the shift activity was examined for catalysts which seven sort components with different electronegativity were added to Mo/Al₂O₃. The shift activity was highest with the catalyst by adding Ni, which has the largest electronegativity. The results suggest that the reducibility of MoO₃ is improved by adding a large electronegativity component, and as a result, the generation of MoS₂ is enhanced in the pretreatment process. Furthermore, as a result of searching for the optimal composition including the support, MoS₂ generation was most enhanced with the Ni/Mo/TiO₂ catalyst, and shift activity was also maximized.