Influence of Gas Phase Reactions on DME-SCR over gamma-alumina
Journal article, 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

Author

Stefanie Tamm

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Hanna Härelind Ingelsten

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Competence Centre for Catalysis (KCK)

Anders Palmqvist

Competence Centre for Catalysis (KCK)

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Catalysis Letters

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

Vol. 141 5 656-664

Driving Forces

Sustainable development

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Transport

Energy

Materials Science

Subject Categories

Chemical Sciences

DOI

10.1007/s10562-011-0556-8

More information

Latest update

11/5/2018