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Selective catalytic reduction of nitrogen oxides from industrial gases by hydrogen or methane; Reduction catalytique selective des oxydes d'azote (NO{sub x}) provenant d'effluents gazeux industriels par l'hydrogene ou le methane

Abstract

This work deals with the selective catalytic reduction of nitrogen oxides (NO{sub x}), contained in the effluents of industrial plants, by hydrogen or methane. The aim is to replace ammonia, used as reducing agent, in the conventional process. The use of others reducing agents such as hydrogen or methane is interesting for different reasons: practical, economical and ecological. The catalyst has to convert selectively NO into N{sub 2}, in presence of an excess of oxygen, steam and sulfur dioxide. The developed catalyst is constituted by a support such as perovskites, particularly LaCoO{sub 3}, on which are dispersed noble metals (palladium, platinum). The interaction between the noble metal and the support, generated during the activation of the catalyst, allows to minimize the water and sulfur dioxide inhibitor phenomena on the catalytic performances, particularly in the reduction of NO by hydrogen. (O.M.)
Publication Date:
Dec 15, 2004
Product Type:
Thesis/Dissertation
Report Number:
FRNC-TH-7510
Resource Relation:
Other Information: TH: These structure et dynamique des systemes reactifs; Also available from U.S.T.L. - Service commun de la documentation, Avenue Henri Poincare BP 30155 Cite scientifique, 59653 Villeneuve d'Ascq CEDEX (France)
Subject:
54 ENVIRONMENTAL SCIENCES; AIR POLLUTION ABATEMENT; CALCINATION; CATALYST SUPPORTS; CHEMICAL PREPARATION; CHEMISORPTION; COPRECIPITATION; CRYSTAL STRUCTURE; DIFFERENTIAL THERMAL ANALYSIS; HETEROGENEOUS CATALYSIS; HYDROGEN; INDUSTRIAL WASTES; METHANE; NITROGEN OXIDES; PALLADIUM; PEROVSKITES; PLATINUM; RAMAN SPECTROSCOPY; RESEARCH PROGRAMS; SELECTIVE CATALYTIC REDUCTION; SOL-GEL PROCESS; SPECIFIC SURFACE AREA; TEXTURE; THERMAL GRAVIMETRIC ANALYSIS; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY
OSTI ID:
21096938
Research Organizations:
Universite des Sciences et technologies de Lille, 59 - Villeneuve d'Ascq (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR0801729107567
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
222 pages
Announcement Date:
Dec 05, 2008

Citation Formats

Engelmann Pirez, M. Selective catalytic reduction of nitrogen oxides from industrial gases by hydrogen or methane; Reduction catalytique selective des oxydes d'azote (NO{sub x}) provenant d'effluents gazeux industriels par l'hydrogene ou le methane. France: N. p., 2004. Web.
Engelmann Pirez, M. Selective catalytic reduction of nitrogen oxides from industrial gases by hydrogen or methane; Reduction catalytique selective des oxydes d'azote (NO{sub x}) provenant d'effluents gazeux industriels par l'hydrogene ou le methane. France.
Engelmann Pirez, M. 2004. "Selective catalytic reduction of nitrogen oxides from industrial gases by hydrogen or methane; Reduction catalytique selective des oxydes d'azote (NO{sub x}) provenant d'effluents gazeux industriels par l'hydrogene ou le methane." France.
@misc{etde_21096938,
title = {Selective catalytic reduction of nitrogen oxides from industrial gases by hydrogen or methane; Reduction catalytique selective des oxydes d'azote (NO{sub x}) provenant d'effluents gazeux industriels par l'hydrogene ou le methane}
author = {Engelmann Pirez, M}
abstractNote = {This work deals with the selective catalytic reduction of nitrogen oxides (NO{sub x}), contained in the effluents of industrial plants, by hydrogen or methane. The aim is to replace ammonia, used as reducing agent, in the conventional process. The use of others reducing agents such as hydrogen or methane is interesting for different reasons: practical, economical and ecological. The catalyst has to convert selectively NO into N{sub 2}, in presence of an excess of oxygen, steam and sulfur dioxide. The developed catalyst is constituted by a support such as perovskites, particularly LaCoO{sub 3}, on which are dispersed noble metals (palladium, platinum). The interaction between the noble metal and the support, generated during the activation of the catalyst, allows to minimize the water and sulfur dioxide inhibitor phenomena on the catalytic performances, particularly in the reduction of NO by hydrogen. (O.M.)}
place = {France}
year = {2004}
month = {Dec}
}