Methanation reaction of activated carbon

Promoter effect. Potassium (K) and barium (Ba) are good promoters for Ru/AC, while barium can increase not only the catalytic activity, but also the dispersion of ruthenium, as well as prevent the sintering of Ru crystallite, reduce the methanation reaction of activated carbon, improve the thermal stabUity of the catalyst. The role of electronic promoter about K is more evident, but it can only increase the catalytic activity, and it cannot prevent the sintering of Ru crystallite and the methanation of activated carbon. 

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