Selective Catalytic Reduction (SCR) is a way of converting Nitrogen Oxides (NOx) with the aid of a catalyst into nitrogen (N2) and water (H2O) at a lower temperature level.
The reductant, typically aqueous ammonia or urea solution is added, injected to the exhaust gas stream for the selective catalytic reduction.
Catalytic oxidation activity (CO/VOC) is achieved by additional impregnation with noble metals.
GEA was the first company to use and continuously improve selective catalytic reduction (SCR) in the glass industry, in the cement industry and now also in metallurgical industry.
With the operating data, the performance measurements carried out and the activity studies of the catalysts used, GEA is constantly adding to its experience for process optimization and for the benefit of users in all industrial sectors.
GEA offers two selective Catalytic Reduction Solutions to control NOx:
- SCR reactor for removal of NOx & CO/VOC
- Catalytic ceramic candle filter (BisCat)
Products
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Catalytic ceramic candle filter (BisCat)
BisCat ceramic filters with an embedded catalyst matrix consists of vanadium pentoxide, allow for the removal of particulates, sorption processes for acidic gases, reduction of NOX and the decomposing of dioxins, VOC`s. The filter elements are chemically inert and corrosion resistant. Gas cleaning in one step. A multifunctional filter for the sim...
Installations SCR de GEA
La réduction catalytique sélective (SCR) est un moyen qui permet de convertir les oxydes d'azote (NOx). La combustion du charbon, des produits pétroliers, du gaz naturel et des déchets domestiques et dangereux pour la production industrielle génère des émissions polluantes sous forme de gaz de dégagement. Ainsi, des quantités importantes de NOx, ...
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L'équation de l'eau
Partout en Europe, la sécheresse est une réalité récurrente, qui ne se limite plus au sud. Si l'eau influence de plus en plus le choix de la localisation des industries, sa valeur est déterminée par le contexte local. Il existe de nombreuses voies technologiques pour optimiser les usages de l'eau dans les processus industriels, mais la localisation, les besoins énergétiques et d'autres facteurs jouent également un rôle essentiel.
