Methods and devices for reducing hazardous air pollutants

Details Methods and devices for reducing hazardous air pollutants Methods and devices for reducing hazardous air pollutants

F - Mech Eng,Light,Heat,Weapons

23

J

F23J 15/02 (2006.01) B01J 20/20 (2006.01)

Patent

CA 2700189

The disclosure provides methods and systems for sequestering and/or reducing sulfur oxides, nitrogen oxides and/or carbon dioxide present in industrial effluent fluid streams. A solid particulate material comprising a slag component, a binder component (distinct from the slag component), and optionally water is formed and then contacted with the effluent fluid stream to reduce at least one of the sulfur oxides, nitrogen oxides, and/or carbon dioxide. The contacting of the effluent stream may occur in a packed bed reactor with the solid dry particulate material. Methods of reducing pollutants from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided.

L'invention concerne des procédés et des systèmes pour séquestrer et/ou réduire des oxydes de soufre, des oxydes d'azote et/ou du dioxyde de carbone présents dans des courants d'effluents de fluides industriels. Un matériau particulaire solide comprenant un composant de scories, un composant de liant (distinct du composant de scories), et, en option, de l'eau, est formé et est ensuite mis en contact avec le courant d'effluent de fluides afin de réduire au moins un parmi les oxydes de soufre, les oxydes d'azote et/ou le dioxyde de carbone. Le contact du courant d'effluent avec le matériau particulaire solide sec peut avoir lieu dans un réacteur à lit tassé. L'invention concerne des procédés de réduction de polluants issus d'un échappement produit par des sources de combustion, des fours à chaux et/ou ciment, des fours à fer et/ou acier, et des sources similaires.

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