Method and apparatus for sequestering carbon dioxide from a...

Details Method and apparatus for sequestering carbon dioxide from a... Method and apparatus for sequestering carbon dioxide from a...

C - Chemistry, Metallurgy

01

B

C01B 31/20 (2006.01) B01D 53/14 (2006.01) B01D 53/62 (2006.01) C01G 49/00 (2006.01) C21B 15/00 (2006.01)

Patent

CA 2757479

A method and apparatus for sequestering carbon dioxide from a waste gas and reusing the waste gas as a recycled gas without emissions concerns. Gas source is divided into a process gas and a waste gas. Process gas is mixed with a hydrocarbon and fed into a reformer for forming a reducing gas. At least a portion of the waste gas is fed into a carbon dioxide scrubber, form-ing a carbon dioxide lean gas that is mixed with the reducing gas. Optionally, the gas source and the reducing gas are associated with a direct reduction process for converting iron oxide to metallic iron.

L'invention porte sur un procédé et un appareil pour séquestrer du dioxyde de carbone à partir d'un gaz usé et le réutiliser comme gaz recyclé sans souci d'émission, consistant à diviser une source de gaz en un gaz de procédé et un gaz résiduair; mélanger le gaz de procédé avec un hydrocarbure et l'introduire dans un reformeur pour former un gaz réducteur; et introduire au moins une partie du gaz résiduaire dans un épurateur de dioxyde de carbone pour former un gaz pauvre en dioxyde de carbone qui est mélangé avec le gaz réducteur. Facultativement, le procédé comprend également l'association de la source de gaz et du gaz réducteur à un processus de réduction directe pour convertir l'oxyde de fer en fer métallique.

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