Gas stream multi-pollutants control systems and methods

Details Gas stream multi-pollutants control systems and methods Gas stream multi-pollutants control systems and methods

B - Operations, Transporting

01

D

B01D 53/34 (2006.01) B01D 53/60 (2006.01) B01D 53/62 (2006.01) B01D 53/64 (2006.01) B09B 3/00 (2006.01)

Patent

CA 2694959

In some embodiments, the invention provides systems and methods for removing carbon dioxide and/or additional components of waste gas streams, comprising contacting the waste gas stream with an aqueous solution, removing carbon dioxide and/or additional components from the waste gas stream, and containing the carbon dioxide and/or additional components, in one form or another, in a composition. In some embodiments, the composition is a precipitation material comprising carbonates, bicarbonates, or carbonates and bicarbonates. In some embodiments, the composition further comprises carbonate and/or bicarbonate co-products resulting from co-processing SOx, NOx, particulate matter, and/or certain metals. Additional waste streams such as liquid, solid, or multiphasic waste streams may be processed as well.

Dans certains modes de réalisation, l'invention concerne des systèmes et des procédés pour retirer du dioxyde de carbone et/ou d'autres composants d'effluents gazeux, qui consistent à mettre l'effluent gazeux en contact avec une solution aqueuse, retirer le dioxyde de carbone et/ou d'autres composants de l'effluent gazeux, et introduire le dioxyde de carbone et/ou d'autres composants, sous une forme ou une autre, dans une composition. Dans certains modes de réalisation, la composition est un matériau de précipitation comprenant des carbonates, des bicarbonates ou des carbonates et des bicarbonates. Dans certains modes de réalisation, la composition comprend en outre des co-produits de carbonate et/ou de bicarbonate résultant du co-traitement de SOx, NOx, de matières particulaires et/ou de certains métaux. D'autres effluents, comme des effluents liquides, solides ou multiphasiques peuvent également être traités.

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