413947 Development of Shift Catalyst Reactive at Low Temperature in Coal-Fired Power Generation for Next Generation

Wednesday, November 11, 2015
Exhibit Hall 1 (Salt Palace Convention Center)
Takashi Sasaki1, Tomoko Suzuki1 and Masaki Takaoka2, (1)Research & Development Group, Hitachi, Ltd., Hitachi-shi Ibaraki-ken, Japan, (2)Department of Environmental Engineering, Kyoto University, Kyoto, Japan

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.

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