Characterization of SO₂-contaminated Cu-ZSM-5 catalysts

Autor(en)

C. L. Lengauer, E. Tillmanns, C. Plog

Abstrakt

The removal of nitrogen oxides (NO_x), which are considered to play an active role in air pollution processes, is an important topic in the field of catalytic applications of ion exchanged molecular sieves. Beside other types of catalysts, like Y-Ba-Cu-oxides or Pt-coated Al₂O₃, copper exchanged zeolites show a high catalytic performance in the direct decomposition of NO_x from emissions of diesel engines and industrial boilers. Because of their thermal stability up to 1000°C and their high activity in the oxidized state Cu^2+/I+-ZSM-5 zeolites are an important alternative to common noble metal or metal oxide catalysts. A SO₂-content in the feeding gas, however, which is inevitable in real exhaust gases, 'poisons' the zeolite catalyst. This behavior is also reported for Cu-MOR and Cu-FAU.

Organisation(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

Deutsche Aerospace

Journal

Studies in surface science and catalysis

Band

98

Seiten

58-60

Anzahl der Seiten

3

ISSN

0167-2991

Publikationsdatum

1995

Peer-reviewed

Ja

ÖFOS 2012

105116 Mineralogie, 105113 Kristallographie

ASJC Scopus Sachgebiete

Catalysis, Condensed Matter Physics, Physical and Theoretical Chemistry, Surfaces, Coatings and Films, Materials Chemistry

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/characterization-of-so2contaminated-cuzsm5-catalysts(969eac86-fe4c-4354-84d9-98447266f69f).html