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Catalytic Reduction of Nitrous Oxide with Carbon Monoxide over Calcined Co–Mn–Al Hydrotalcite
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SYSNO ASEP 0316717 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Catalytic Reduction of Nitrous Oxide with Carbon Monoxide over Calcined Co–Mn–Al Hydrotalcite Title Katalytická redukce oxidu dusného oxidem uhelnatým na kalcinovaných Co-Mn-Al hydrotalcitech Author(s) Pacultová, K. (CZ)
Obalová, L. (CZ)
Kovanda, F. (CZ)
Jirátová, Květa (UCHP-M) RID, ORCID, SAINumber of authors 4 Source Title Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 137, 2-4 (2008), s. 358-389Number of pages 5 s. Language eng - English Country NL - Netherlands Keywords nitrous oxide ; carbon monoxide ; mixed oxide catalysts Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GA106/05/0366 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000258990800042 DOI 10.1016/j.cattod.2007.11.062 Annotation The N2O catalytic reduction by carbon monoxide over Co–Mn–Al calcined hydrotalcite was studied. The effect of oxygen and that of CO/N2O molar ratio on the rate of N2O decomposition was examined. CO strongly enhanced N2O conversion when O2 was absent in the feed gas. In the presence of oxygen, carbon monoxide acts as a non-selective reductant thereby inhibiting N2O destruction. Continuing excess of CO over N2O without presence of O2 led to a very slow reduction of the catalyst, which caused noticeable N2O conversion decrease with progressing catalyst reduction. The simultaneous reduction of N2O by CO and direct N2O decomposition took place when CO was limiting reactant but only at temperatures, at which the direct decomposition is possible without presence of reductant. Simple reduction was observed when reactants ratio was CO/N2O larger 1. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2009
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