Influence of Gas Phase Reactions on DME-SCR over gamma-alumina
Artikel i vetenskaplig tidskrift, 2011
Above 300 A degrees C, gas phase reactions occur between dimethyl ether (DME), NO and O-2 generating NO2. The influence of these reactions on DME-SCR was studied in a setup that decoupled the occurrence of gas phase reactions from catalyst temperature. NOx conversion decreased at 350 A degrees C and increased at 250 A degrees C due to less DME available and higher NCO conversion with NO2, respectively.
reaction-mechanism
spectroscopy
reduction
dimethyl ether
selective catalytic-reduction
Gas phase reaction
Dimethyl ether
nitrogen-oxides
gamma-alumina
Transmission infrared spectroscopy
lean nox
ag/al2o3 catalyst
ir
in-situ ftir
higher hydrocarbons
low-temperature oxidation
DME
NOx-reduction
Författare
Stefanie Tamm
Chalmers, Kemi- och bioteknik, Teknisk ytkemi
Kompetenscentrum katalys
Hanna Härelind Ingelsten
Chalmers, Kemi- och bioteknik, Teknisk ytkemi
Kompetenscentrum katalys
Anders Palmqvist
Kompetenscentrum katalys
Chalmers, Kemi- och bioteknik, Teknisk ytkemi
Catalysis Letters
1011-372X (ISSN) 1572-879X (eISSN)
Vol. 141 5 656-664Drivkrafter
Hållbar utveckling
Styrkeområden
Nanovetenskap och nanoteknik
Transport
Energi
Materialvetenskap
Ämneskategorier
Kemi
DOI
10.1007/s10562-011-0556-8