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N2O abatement over γ-Al2O3 supported catalysts: Effect of reducing agent and active phase nature

Pekridis Georgios, Athanasiou Costas, Konsolakis Michail, Yentekakis Ioannis V., Marnellos George E.

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/B193A119-3B0A-404C-A3EC-BFFA562F584B-
Αναγνωριστικόhttps://doi.org/10.1007/s11244-009-9346-6-
Γλώσσαen-
Μέγεθος7en
ΤίτλοςN2O abatement over γ-Al2O3 supported catalysts: Effect of reducing agent and active phase natureen
ΔημιουργόςPekridis Georgiosen
ΔημιουργόςΠεκριδης Γεωργιοςel
Δημιουργός Athanasiou Costasen
ΔημιουργόςKonsolakis Michailen
ΔημιουργόςΚονσολακης Μιχαηλel
Δημιουργός Yentekakis Ioannis V.en
Δημιουργός Marnellos George E.en
ΕκδότηςSpringer USen
ΠεριγραφήΔημοσίευση σε επιστημονικό περιοδικό el
ΠερίληψηA series of metal catalysts (Pd, Rh, Ru, Cu, Fe, In and Ni) supported on γ-Al2O3 carrier, were evaluated during N2O catalytic conversion to N2 in the absence and presence of excess oxygen and reducing agents (CH4 or C3H8). Among all catalysts tested, Pd-, Ru- and Rh-based samples exhibited the best catalytic performance, in all reaction conditions examined. The reaction was inhibited by O2, in particular at lower temperatures, while its effect was essentially negligible at higher ones. In the presence of reducing agents and under lean reaction conditions, N2O conversion was comparably enhanced, with C3H8 being more efficient than CH4; however even in the presence of hydrocarbons N2O decomposition is the major pathway for N2O abatement, since reducing agents mainly act as oxygen scavengers reducing and concurrently activating the metal sites. The influence of different co-existing gases (CO, H2O and SO2) on the performance of Pd supported catalysts was also investigated, whereas thermal stability tests in the presence of SO2 indicate a gradual irreversible decrease in activity until a new steady state was established.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-11-03-
Ημερομηνία Δημοσίευσης2009-
Θεματική ΚατηγορίαN2O decompositionen
Θεματική ΚατηγορίαReducing agentsen
Θεματική ΚατηγορίαMetal supported catalystsen
Βιβλιογραφική ΑναφοράG. Pekridis, C. Athanasiou, M. Konsolakis, I.V. Yentekakis, G.E. Marnellos, "N2O abatement over γ-Al2O3 supported catalysts: Effect of reducing agent and active phase nature, " Topics in Catalysis, vol. 52, no. 13, pp. 1880-1887, Dec. 2009. doi: 10.1007/s11244-009-9346-6en

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