The influence of SO2-/4 on the catalytic combustion of soot using O-2 and NO/O-2 mixtures over Na-promoted Al2O3 catalysts

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Title: The influence of SO2-/4 on the catalytic combustion of soot using O-2 and NO/O-2 mixtures over Na-promoted Al2O3 catalysts
Authors: Sullivan, James A.
Keane, Orla
Maguire, Linda
Permanent link: http://hdl.handle.net/10197/4002
Date: Jul-2005
Abstract: Na/Al2O3 catalysts are tested in the soot oxidation reaction using O-2 and NO/O-2 as oxidising agents. The activity of the catalysts . varies with oxidising agent and the presence of surface SO42-.. NO(g) increases conversion of soot to COx-. Surface SO42- has no effect on activity for the C-(s) + O-2 reaction but decreases activity in the Carbon + NO/O-2 oxidation. This is interpreted in terms of SO42- blocking NO adsorption sites, thus poisoning the 4 NO + O-2 --> NO2 reaction, which is essential for the NOx promoted oxidation.
Type of material: Journal Article
Publisher: Elsevier
Journal: Catalysis Communications
Volume: 6
Issue: 7
Start page: 472
End page: 475
Copyright (published version): 2005 Elsevier B.V.
Keywords: Soot combustionSulphateNOx
DOI: 10.1016/j.catcom.2005.04.008
Language: en
Status of Item: Peer reviewed
Appears in Collections:Chemistry Research Collection

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