Catalytic activity of Perovskite -based La0.3Sr0.7Co0.7Fe0.3O3-δ in a packed-bed reactor for partial oxidation of CH4 using N2O as an oxidant

Journal article

Authors/Editors

Strategic Research Themes

No matching items found.

Publication Details

Author list: Saowanee Srisomboon;Vut Tongnan;Navadol Laosiripojana;Unalome Wetwatana Hartley;Unalome Wetwatana Hartley

Publication year: 2019

Journal: Journal of Sustainable Energy and Environment (1906-4918)

Volume number: 10

Issue number: 3

Start page: 57

End page: 64

ISSN: 1906-4918

URL: http://www.jseejournal.com/journal.php?id=43

Abstract

Perovskite -based La0.3Sr0.7Co0.7Fe0.3O3-δ (LSCF3773, LSCF) were used as a catalyst in synthesis gas production via an integration of nitrous oxide decomposition with methane partial oxidation reaction in a packed-bed reactor. LSCF powder was prepared by ethylene glycol modified Sol-gel-Pechini and sintered at 1100°C with slow heating rate in order to complete a pervoskite phase. A crystalline phase and a crystallite size of the synthesized powder were analyzed by x-ray diffraction technique (XRD). Partial oxidation was performed by feeding of CH4 and N2O in a packed-bed reactor. CH4-TPR was applied to investigate the CH4 absorption behavior on surface and in lattice of catalyst. The result of CH4-TPR  showed that CH4 consumption occurred during 900°C to 950°C in temperature, and at 920°C was found the highest of CH4 was oxidized with O2 on the surface and in the lattice and gave the highest products (H2 and CO), called methane partial oxidation reaction (POM). In reaction performance, suitable CH4

Keywords

N2O decomposition, Partial oxidation of methane., Perovskite-type material, Synthesis gas production