Carbon dioxide reforming of methane to synthesis gas has been investigated over supported Ni catalysts in the temperature range of 5004350Β°C. Addition of CaO ( 10 mol%) promoter to the Nil y-A1203 resulted in an increase of reaction rate and an improvement of catalyst stability, which may be related
Carbon dioxide reforming of methane to synthesis gas over Ni/Si3N4 catalysts
β Scribed by Rujing Shang; Xiaoning Guo; Shifang Mu; Yingyong Wang; Guoqiang Jin; Hendrik Kosslick; Axel Schulz; Xiang-Yun Guo
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 996 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0360-3199
No coin nor oath required. For personal study only.
β¦ Synopsis
Silicon nitride supported nickel catalyst prepared by impregnation using nickel nitrate solution was employed for the carbon dioxide reforming of methane. The catalyst was tested at 800 C under atmospheric pressure. The influences of Ni loading and calcination temperature on the catalytic performance were investigated. It was found that the nickel loading and calcination temperature strongly influenced the catalytic performance. Over the 7 wt. % Ni/Si 3 N 4 catalyst calcined at 400 C, the conversions of CH 4 and CO 2 can achieve 95% and 91%, respectively. Appropriate interaction between the metal and the basic support makes the catalyst more resistant to sintering and coking, and thus an excellent stability.
π SIMILAR VOLUMES
We have studied the CO2-reforming of methane at atmospheric pressure in the range temperature 550-730Β°C on Ni/ot-A1203 catalysts modified by Fe, Co, Cu and Ce, respectively. The obtained results show that the activities depend on the CO2/CH 4 ratio, the nature of the metal additives and the reaction