Process for treating flue gas

Details Process for treating flue gas Process for treating flue gas

B - Operations, Transporting

01

D

B01D 53/56 (2006.01) C01C 1/02 (2006.01) C01C 1/08 (2006.01)

Patent

CA 2331268

Process for combustion flue gas conditioning, by injecting ammonia, in a very simple and viable way, in a stream of said combustion flue gas stream, characterized in that dissolved urea is hydrolyzed by heating under pressure to yield ammonia and carbon dioxide the hydrolysis product are stripped from the hydrolized solution by means of hot steam and injected into the flue gas stream while water coming out of the hydrolysed solution is reused to dissolve fresh urea to be fed to the plant.

Procédé servant à traiter des gaz de combustion par injection simple et efficace d'ammoniac dans un flux dudit gaz de combustion, ce qui consiste à hydrolyser de l'urée dissoute par réchauffement sous pression afin d'obtenir de l'ammoniac et du dioxyde de carbone, à extraire le produit d'hydrolyse de la solution hydrolysée au moyen de vapeur chaude et à l'injecter dans le flux de gaz de combustion, tandis qu'on réutilise l'eau sortant de la solution hydrolysée pour dissoudre l'urée neuve à introduire dans l'installation.

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