B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/60 (2006.01)
Patent
CA 2743713
A process for removing impurities, in particular oxides of sulphur (SO x) and/or oxides of nitrogen (NO x) from oxygen-containing gas streams by scrubbing with at least one washing agent is described. In order to achieve effective gas purification in an economical manner even in the case of so-called large "oxyfuel" furnaces which operate with oxygen as fuel gas, it is proposed to convert the impurities at an elevated pressure of at least 2 bar with at least one basic constituent of the washing agent into salts and to wash out said impurities as dissolved salts.
L'invention concerne un procédé d'élimination d'impuretés, notamment d'oxydes de soufre (SOx) et/ou d'oxydes d'azote (NOx) de courants gazeux contenant de l'oxygène par lavage avec au moins un agent de lavage. Pour parvenir de manière économique à une épuration efficace du gaz même pour de grandes installations dites d'oxycombustion qui utilisent de l'oxygène comme comburant, il est proposé que les impuretés soient converties en sels à une pression accrue d'au moins 2 bar avec au moins un ingrédient basique de l'agent de lavage et soient éliminées par lavage en tant que sels dissous.
Ritter Roland
Schoedel Nicole
Stoffregen Torsten
Winkler Florian
Zander Hans-Joerg
Gowling Lafleur Henderson Llp
Linde-Kca-Dresden Gmbh
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