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Catalytic combustion of gasified refuse-derived fuel
KTH, Tidigare Institutioner                               , Kemiteknik.
2003 (Engelska)Ingår i: Applied Catalysis B: Environmental, ISSN 0926-3373, E-ISSN 1873-3883, Vol. 45, nr 1, s. 1-11Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The catalytic combustion of gasified refuse-derived fuel (RDF), i.e. a low heating-value (LHV) gas containing H-2, CO and CH4 as combustible components, has been studied and compared with the combustion of methane. Two metal oxide catalysts, i.e. a spinel and a hexaaluminate, and three noble metal catalysts were tested. The results show that the Pd-based catalysts were the most active both for the gasified waste, i.e. RDF and methane. Incorporating an active support such as LaMnAl11O19 enhances the catalytic activity for methane in gasified waste. Substituting Mn into the crystal lattice of the spinel also increased the catalytic activity for H-2 and CO, while the methane activity remained low. The formation of NOX from fuel-bound nitrogen was investigated by adding NH3 to the gas stream. The metal oxide catalysts showed a higher selectivity for oxidising NH3 into N-2 than the catalysts containing precious metals. The spinel materials have high thermal stability and are comparable to the hexaaluminates confirming that they could be promising as washcoat materials to avoiding sintering at high temperatures.

Ort, förlag, år, upplaga, sidor
2003. Vol. 45, nr 1, s. 1-11
Nyckelord [en]
catalytic combustion, gasified waste, gasified biomass, RDF, NH3, NOX, hexaaluminate, spinet, Pd, Pt, high-temperature combustion, hexaaluminate catalysts, biomass gasification, methane combustion, oxidation, supports, surface, co
Identifikatorer
URN: urn:nbn:se:kth:diva-22811ISI: 000185269800001OAI: oai:DiVA.org:kth-22811DiVA, id: diva2:341509
Anmärkning
QC 20100525Tillgänglig från: 2010-08-10 Skapad: 2010-08-10 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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Järås, Sven G.
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