Original title: Catalytic Decomposition of Nitrous Oxide over Calcined Hydrotalcite-like Compounds
Authors: Obalová, L. ; Kovanda, F. ; Jirátová, Květa ; Chmielová, M. ; Wichterle, K. ; Dorničák, V.
Document type: Papers
Conference/Event: International Congress of Chemical and Process Engineering CHISA 2002 /15./, Prague (CZ), 2002-08-25 / 2002-08-29
Year: 2002
Language: eng
Abstract: Mixed oxide based catalysts prepared by the thermal decomposition of Hydrotalcite-like compounds were used in catalytic decomposition of nitrous oxide into nitrogen and oxygen. The catalytic reaction was performed in a fixed-bed reactor at 1000 ppm N2O inlet concentration in the temperature range 603 - 723 K. Ni and Co-containing catalysts showed high activity in nitrous oxide decomposition. A very poor activity was observed for Mg-Al mixed oxide catalyst. The prepared catalysts were characterized by the thermal analysis, powder X-ray diffraction, infrared spectroscopy, BET surface area measurement, temperature-programmed reduction and temperature-programmed desorption. The determined reaction rate constants of N2O decomposition were approximately proportional to the amount of reducible components and inversely proportional to the amount of strong basic centres of catalyst.
Keywords: catalytic decomposition; hydrotalcite; nitrous oxide
Project no.: CEZ:AV0Z4072921 (CEP), GA106/02/0523 (CEP)
Funding provider: GA ČR
Host item entry: Summaries, ISBN 80-86059-33-2

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0063657

Permalink: http://www.nusl.cz/ntk/nusl-25195


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