Alumina-supported In2O3, Ga2O3 and B2O3 catalysts for lean NOx reduction with dimethyl ether
Artikel i vetenskaplig tidskrift, 2012

Alumina-supported In2O3, Ga2O3 and B2O3 were investigated as catalysts for lean NOx reduction with DME as reducing agent and compared to pure Al2O3 and In2O3. The In2O3-promoted alumina catalysts showed the highest NOx conversion at low temperatures, although with a narrow temperature window. Pure In2O3, on the other hand, was inactive for NOx reduction with DME. The Ga2O3- and B2O3-promoted alumina catalysts gave the highest NOx conversion at higher temperatures, showed a temperature window similar to pure alumina, but were less sensitive to H2O inhibition. Possible reasons for these observations are discussed.

Alternative fuel

dme

mechanistic aspects

NOx reduction

Indium

selective reduction

Boron

nitric-oxide

Gallium

gallium oxide catalysts

excess oxygen

Hydrocarbon-SCR

engine

Dimethyl ether

gamma-alumina

nitrogen monoxide

prepared ga2o3-al2o3 catalysts

Alumina

exhaust-gas

Författare

Sara U Erkfeldt

Kompetenscentrum katalys (KCK)

Martin Petersson

Volvo Group

Anders Palmqvist

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Applied Catalysis B: Environmental

0926-3373 (ISSN) 1873-3883 (eISSN)

Vol. 117 369-383

Ämneskategorier

Fysikalisk kemi

DOI

10.1016/j.apcatb.2012.01.031

Mer information

Senast uppdaterat

2018-11-23