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Methane partial oxidation on Pt/CeO_2 and Pt/Al_2O_3 catalysts

Pantu, Piboon and Gavalas, George R. (2002) Methane partial oxidation on Pt/CeO_2 and Pt/Al_2O_3 catalysts. Applied Catalysis A: General, 223 (1-2). pp. 253-260. ISSN 0926-860X. https://resolver.caltech.edu/CaltechAUTHORS:20151006-150211577

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Abstract

Partial oxidation of methane to synthesis gas over 0.5 wt.% Pt/Al_2O_3 and 0.5 wt.% Pt/CeO_2 catalysts was studied in a packed-bed reactor and supplementary runs of methane reforming with carbon dioxide were carried out. Fresh and used catalysts were characterized by nitrogen adsorption (BET method) for total surface area, and by H_2 and CO chemisorption or by the rate of propene hydrogenation for metal surface area. At temperatures up to 650°C, the Pt/CeO_2 catalyst gave considerably higher methane conversion and higher selectivity to CO and H_2 but above 700°C, the activities and selectivities of both catalysts were comparable. The Pt/CeO_2 catalyst maintained high selectivity to CO and H_2 when the CH_4:O_2 feed ratio varied from 1.7 to 2.3 while the Pt/Al_2O_3 catalyst had lower activity and selectivity under methane-rich conditions. The Pt/CeO_2 catalyst was also more active for methane reforming by carbon dioxide.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/S0926-860X(01)00761-XDOIArticle
http://www.sciencedirect.com/science/article/pii/S0926860X0100761XPublisherArticle
ORCID:
AuthorORCID
Gavalas, George R.0000-0003-1468-6835
Alternate Title:Methane partial oxidation on Pt/CeO2 and Pt/Al2O3 catalysts
Additional Information:© 2002 Elsevier. Received 28 March 2001; received in revised form 24 July 2001; accepted 25 July 2001.
Subject Keywords:Cerium oxide; Methane partial oxidation; Redox oxide; Methane reforming; Synthesis gas
Issue or Number:1-2
Record Number:CaltechAUTHORS:20151006-150211577
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151006-150211577
Official Citation:Piboon Pantu, George R Gavalas, Methane partial oxidation on Pt/CeO2 and Pt/Al2O3 catalysts, Applied Catalysis A: General, Volume 223, Issues 1–2, 10 January 2002, Pages 253-260, ISSN 0926-860X, http://dx.doi.org/10.1016/S0926-860X(01)00761-X. (http://www.sciencedirect.com/science/article/pii/S0926860X0100761X)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60822
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:13 Oct 2015 15:01
Last Modified:03 Oct 2019 09:01

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