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Kinetic study of the selective reduction of nitric oxide over vanadia—tungsta—titania/sepiolite catalyst

Odenbrand, Ingemar LU ; Bahamonde, A ; Avila, P and Blanco, J (1994) In Applied Catalysis B: Environmental 5(1-2). p.117-131
Abstract
A kinetic study of the reduction of nitric oxide by ammonia in the presence of oxygen on a novel catalyst prepared as a physical mixture of V2O5-WO3/TiO2 catalyst and a natural silicate (sepiolite) was carried out. The steady-state differential reactor data were fitted to several equations using a discriminating method based on physical and statistic criteria. The best fit was obtained from a model involving adsorption of ammonia and oxygen which react with nitric oxide from the gas phase following an Eley-Rideal mechanism. The equation considered for this model reproduces well the experimental results obtained in a differential regime. Important limitations by internal diffusion were determined when the reaction took place in an integral... (More)
A kinetic study of the reduction of nitric oxide by ammonia in the presence of oxygen on a novel catalyst prepared as a physical mixture of V2O5-WO3/TiO2 catalyst and a natural silicate (sepiolite) was carried out. The steady-state differential reactor data were fitted to several equations using a discriminating method based on physical and statistic criteria. The best fit was obtained from a model involving adsorption of ammonia and oxygen which react with nitric oxide from the gas phase following an Eley-Rideal mechanism. The equation considered for this model reproduces well the experimental results obtained in a differential regime. Important limitations by internal diffusion were determined when the reaction took place in an integral regime. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
AMMONIA, KINETICS, NITRIC OXIDE REDUCTION, SELECTIVE CATALYTIC, REDUCTION, SEPIOLITE, TITANIA, TUNGSTA, VANADIA
in
Applied Catalysis B: Environmental
volume
5
issue
1-2
pages
117 - 131
publisher
Elsevier
external identifiers
  • wos:A1994QC79300010
  • scopus:0028751380
ISSN
0926-3373
DOI
10.1016/0926-3373(94)00031-X
language
English
LU publication?
yes
id
fb710953-18ba-4001-aaf1-92fee60bf38c (old id 3916371)
date added to LUP
2016-04-01 16:33:37
date last changed
2021-09-12 04:22:51
@article{fb710953-18ba-4001-aaf1-92fee60bf38c,
  abstract     = {{A kinetic study of the reduction of nitric oxide by ammonia in the presence of oxygen on a novel catalyst prepared as a physical mixture of V2O5-WO3/TiO2 catalyst and a natural silicate (sepiolite) was carried out. The steady-state differential reactor data were fitted to several equations using a discriminating method based on physical and statistic criteria. The best fit was obtained from a model involving adsorption of ammonia and oxygen which react with nitric oxide from the gas phase following an Eley-Rideal mechanism. The equation considered for this model reproduces well the experimental results obtained in a differential regime. Important limitations by internal diffusion were determined when the reaction took place in an integral regime.}},
  author       = {{Odenbrand, Ingemar and Bahamonde, A and Avila, P and Blanco, J}},
  issn         = {{0926-3373}},
  keywords     = {{AMMONIA; KINETICS; NITRIC OXIDE REDUCTION; SELECTIVE CATALYTIC; REDUCTION; SEPIOLITE; TITANIA; TUNGSTA; VANADIA}},
  language     = {{eng}},
  number       = {{1-2}},
  pages        = {{117--131}},
  publisher    = {{Elsevier}},
  series       = {{Applied Catalysis B: Environmental}},
  title        = {{Kinetic study of the selective reduction of nitric oxide over vanadia—tungsta—titania/sepiolite catalyst}},
  url          = {{http://dx.doi.org/10.1016/0926-3373(94)00031-X}},
  doi          = {{10.1016/0926-3373(94)00031-X}},
  volume       = {{5}},
  year         = {{1994}},
}