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SCR of NO on Sulfated Zirconium Oxides in the Presence of Methane
Author(s) -
Suprun W.,
Schaedlich K.,
Papp H.
Publication year - 2005
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200407057
Subject(s) - nox , catalysis , selective catalytic reduction , chemistry , cubic zirconia , methane , zirconium , inorganic chemistry , sulfation , nitrogen oxide , nitrogen oxides , selective reduction , organic chemistry , waste management , combustion , ceramic , biochemistry , engineering
Abstract Owing to the harmful influence of nitrogen oxides (NO x ) on the environment the legislative demands a reduction of NO x emissions. This article is concerned with a screening of catalysts on the basis of sulfated zirconia for selective catalytic reduction (SCR) of NO x with methane as reducing agent. To this end, sulfated zirconium oxides were doped with Ga, In, Fe, Ni, Ca and Ce as well as In + Ce oxides and catalytically tested. In addition, the influence of reaction parameters and catalytic poisons on SCR activity and stability of some selected catalysts was investigated and illustrated.