The autothermal oxidative dehydrogenation of ethane in short contact time reactors can be carried out with high ethylene yields on LaMnO3-based non-noble-metal catalysts. The performance of LaMnO3 honeycomb monoliths is evaluated in direct comparison with state-of-the-art Pt catalyst in an autothermal reactor configuration at varying external heating, N2 dilution, C2H6/O2 ratio, and total flow rate. LaMnO3 and Pt are also compared after the addition of a secondary fuel. Evidence is present that H2 and especially CO addition are the means of increasing ethylene selectivity above 80% on LaMnO3, as preferentially this is oxidized in place of ethane. The lower activity of Pt toward CO oxidation makes CO addition ineffective on such a catalyst.
AUTOTHERMAL OXIDATIVE DEHYDROGENATION OF ETHANE ON LaMnO3- AND Pt-BASED MONOLITHS: H2 AND CO ADDITION / Donsì F.; Cimino S.; Pirone R.; Russo G.. - In: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH. - ISSN 0888-5885. - STAMPA. - 44:2(2005), pp. 285-295.
|Titolo:||AUTOTHERMAL OXIDATIVE DEHYDROGENATION OF ETHANE ON LaMnO3- AND Pt-BASED MONOLITHS: H2 AND CO ADDITION|
|Data di pubblicazione:||2005|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1021/ie0492911|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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