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Journal article

Characterization and Regeneration of Pt-Catalysts Deactivated in Municipal Waste Flue Gas

By Rasmussen, Søren Birk1; Kustov, Arkadii1; Due-Hansen, Johannes1; Siret, Bernard; Tabaries, Frank; Fehrmann, Rasmus1,2

From

Department of Chemistry, Technical University of Denmark1

Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Technical University of Denmark2

Severe deactivation was observed for industrially aged catalysts used in waste incineration plants and tested in lab-scale. Possible compounds that cause deactivation of these Pt-based CO oxidation catalysts have been studied. Kinetic observations of industrial and model catalysts showed that siloxanes were the most severe catalyst poisons, although acidic sulfur compounds also caused deactivation.

Furthermore, a method for on-site regeneration without shutdown of the catalytic flue gas cleaning system has been developed, i.e. an addition of H-2/N-2 gas to the off-gas can completely restore the activity of the deactivated catalysts. (c) 2006 Elsevier B.V. All rights reserved.

Language: English
Year: 2006
Pages: 10-16
ISSN: 18733883 and 09263373
Types: Journal article
DOI: 10.1016/j.apcatb.2006.05.009
ORCIDs: Fehrmann, Rasmus
Keywords

CO oxidation Catalytic oxidation Hexamethyldisiloxane Hydrogen IR spectroscopy Platinum Poisoning Regeneration SDG 11 - Sustainable Cities and Communities

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