A study on selective reduction of NOx by propane on Co-Beta

Selective catalytic reduction of NOx by propane was investigated on Co-Beta to clarify the loaded states of cobalt and their role in catalytic activity. At low ion exchange levels less than 100%, loaded cobalt is highly dispersed, which has a high selectivity for NOx reduction. At ion exchange level...

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Veröffentlicht in:	Catalysis letters 1997-01, Vol.44 (3-4), p.265-270
Hauptverfasser:	OHTSUKA, H, TABATA, T, OKADA, O, SABATINO, L. M. F, BELLUSSI, G
Format:	Artikel
Sprache:	eng
Schlagworte:	Catalysis Catalytic activity Catalytic reactions Chemistry Cobalt oxides Exact sciences and technology General and physical chemistry Ion exchange Nitrates Oxidation Propane Raman spectroscopy Selective catalytic reduction Selectivity Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Zusammenfassung:	Selective catalytic reduction of NOx by propane was investigated on Co-Beta to clarify the loaded states of cobalt and their role in catalytic activity. At low ion exchange levels less than 100%, loaded cobalt is highly dispersed, which has a high selectivity for NOx reduction. At ion exchange levels much higher than 100%, Co3O4 appears as identified by Raman spectroscopy, and it contributes to propane oxidation by oxygen and lowers the selectivity especially at high temperatures.
ISSN:	1011-372X 1572-879X
DOI:	10.1023/a:1018929109542