Catalytic performances of CuGa and CuSn binary oxide catalysts towards N2O decomposition and reduction
Articolo
Data di Pubblicazione:
2012
Citazione:
Catalytic performances of CuGa and CuSn binary oxide catalysts towards N2O decomposition and reduction / A. Gervasini, P. Carniti, S. Bennici. - In: REACTION KINETICS, MECHANISMS AND CATALYSIS. - ISSN 1878-5190. - 105:1(2012), pp. 53-67.
Abstract:
Direct catalytic decompn. of N2O in inert and oxidative atm. was investigated over two series of binary oxide catalysts contg. CuO coupled with Ga2O3 or SnO2 dispersed over a silica-alumina support (CuGa/SA and CuSn/SA series catalysts). The activity for N2O decompn. in the absence of oxygen was between 0.1 and 0.2 μmol gcat s-1 in the 500-600 °C interval over the CuSn/SA series catalysts with conversion between 80 and 90%. Lower activities with larger differences were obsd. within the CuGa/SA series catalysts. The presence of oxygen in the feed (O2/N2O ratio up to 20:1) did not affect the activity of the CuGa/SA series while a light decrease of activity could be noticed on the CuSn/SA series. The effect of methane reductant in the selective N2O redn. (N2O-SCR) was tested. On the CuGa/SA series samples, the best reaction selectivity was obsd.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Binary metal oxides; Catalytic decomposition; Copper oxide; Gallium oxide; Nitrous oxide; Selective catalytic reduction (N 2O-SCR); Tin oxide
Elenco autori:
A. Gervasini, P. Carniti, S. Bennici
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