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.

DME

nitrogen-oxides

in-situ ftir

NOx-reduction

lean nox

selective catalytic-reduction

Gas phase reaction

gamma-alumina

ag/al2o3 catalyst

higher hydrocarbons

ir

Transmission infrared spectroscopy

reduction

dimethyl ether

Dimethyl ether

spectroscopy

reaction-mechanism

low-temperature oxidation

Författare

Stefanie Tamm

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Hanna Härelind

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Kompetenscentrum katalys (KCK)

Anders Palmqvist

Kompetenscentrum katalys (KCK)

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Catalysis Letters

1011-372X (ISSN) 1572-879X (eISSN)

Vol. 141 5 656-664

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Transport

Energi

Materialvetenskap

Ämneskategorier

Kemi

DOI

10.1007/s10562-011-0556-8