CO2 reforming of methane is a promising alternative to the energy cost steam reforming for industrial production of hydrogen (principally ammonia) and syngas. Nickel based catalysts have been widely applied for CO2 reforming because of the low cost and high reactivity. However, nickel catalyst suffers from a serious coke deposition. The development of coke-resistant nickel catalysts is of great importance. The study of methane dissociation pathways and the particle size and support influences reveals the importance of nickel structure on the catalytic performance of the nickel catalyst. Many approaches have been used to enhance the coke resistance property of the Ni catalyst. The catalyst preparation has a significant effect on the catalyst structure. In this presentation, the preparation aspects of coke resistance nickel catalyst for CO2 reforming of methane will be discussed with the comparisons of several preparation methodologies for a better structure control. It was found that the best Ni catalyst structure should make a good balance between carbon formation from methane and carbon reaction with CO2 without the carbon accumulation. For the future development, one should pay more attention on the catalyst preparation.

Preparation aspects of coke resistance nickel catalyst for CO2 reforming of methane

255th National Meeting (2018)

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