Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1279003 | International Journal of Hydrogen Energy | 2009 | 9 Pages |
Abstract
A series of different amount ZrO2-promoted SiO2 supported Ni catalysts were prepared and used for methane autothermal reforming with CO2 and O2 [MATR] to synthesis gas in a fluidized bed reactor. Pulse-injected surface reactions and in situ XRD characterizations disclosed that CO2 dissociated exclusively at the boundary between Ni and ZrO2. O species derived from CO2 dissociation overflowed to metallic Ni and accelerated the activation of methane. Ni/5ZrO2–SiO2 catalyst with larger Ni–ZrO2 boundary exhibited the best activity and stability for MATR even at an extremely space velocity 90,000 h−1.
Related Topics
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Authors
Jing Gao, Zhaoyin Hou, Xuesong Liu, Yaowu Zeng, Mengfei Luo, Xiaoming Zheng,