C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 7/36 (2006.01) C04B 7/43 (2006.01) F27D 17/00 (2006.01)
Patent
CA 2750846
The present invention concerns a process for purifying a flow of combustion fumes from a clinker production plant comprising the following operating steps: a) removing dust at a temperature comprised between 250 and 400°C from a flow of combustion fumes exiting from a suspension preheater with formation of a flow of combustion fumes free of dust; b) carrying out on said flow of combustion fumes free of dust a selective catalytic NO, reduction treatment with a reducing agent, with formation of a purified flow of combustion fumes. The present invention also concerns an apparatus for carrying out the aforementioned process.
La présente invention concerne un processus de purification d'un flux de fumées de combustion issu d'une installation de production de mâchefer, ledit processus comportant les étapes opérationnelles suivantes : a) éliminer la poussière à une température comprise entre 250 et 400°C d'un flux de fumées de combustion quittant un préchauffeur à suspension, formant ainsi un flux de fumées de combustion exempt de poussière; b) réaliser sur ledit flux de fumées de combustion exempt de poussière un traitement de réduction catalytique sélective des NOx à l'aide d'un agent réducteur, formant ainsi un flux purifié de fumées de combustion. La présente invention concerne également un appareil destiné à réaliser le processus susmentionné.
Cinti Giovanni
Clausi Antonio
Fedi Roberto
Italcementi S.p.a.
Robic
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