The thesis work deals with the ageing effect and the water effect on Cu-CHA catalysts, employed for the SCR reaction. The experiments have been performed in the Politecnico of Milan labs, over a year; the results are promising and the studied effects (ageing and water) has been evident and absolutely significant on the characteristics of the catalysts, such as speciation and efficiency. The theory behind these effects is still under debate, however the possible solutions are limited in number and they are all reported in this thesis work.
La tesi tratta dell’effetto dell’ageing e dell’acqua sui catalizzatori Cu-CHA utilizzati nella reazione SCR. Gli esperimenti sono stati svolti nei laboratori del Politecnico di Milano nel corso di un anno; i risultati sono stati promettenti e gli effetti studiati (ageing e acqua) sono stati evidenti ed effettivamente influenti sulle caratteristiche dei catalizzatori, come la speciation e l’efficienza La teoria dietro questi effetti è ancora sotto dibattito, tuttavia le possibili risposte sono limitate in numero e vengono riportate all’interno di questa tesi.
A fundamental study over a Cu-CHA SCR catalyst for NOx control on board of Diesel vehicles : impact of ageing on the reduction and the oxidation half-cycles of the standard SCR reaction
CAIMI, FEDERICO;Bruno, Marco
2020/2021
Abstract
The thesis work deals with the ageing effect and the water effect on Cu-CHA catalysts, employed for the SCR reaction. The experiments have been performed in the Politecnico of Milan labs, over a year; the results are promising and the studied effects (ageing and water) has been evident and absolutely significant on the characteristics of the catalysts, such as speciation and efficiency. The theory behind these effects is still under debate, however the possible solutions are limited in number and they are all reported in this thesis work.File | Dimensione | Formato | |
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Tesi Bruno-Caimi.pdf
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https://hdl.handle.net/10589/180079