Process for the removal of carbon dioxide from gas streams

Details Process for the removal of carbon dioxide from gas streams Process for the removal of carbon dioxide from gas streams

C - Chemistry, Metallurgy

10

L

C10L 3/10 (2006.01)

Patent

CA 2687033

A process for the removal and recovery of carbon dioxide from a gaseous stream, in particular the removal and recovery of carbon dioxide, and optionally hydrogen sulphide, from a natural and/or synthesis gas stream. Furthermore, the present invention provides for the release of the removed and recovered carbon dioxide, and optionally hydrogen sulphide, at an elevated pressure, thereby reducing the high carbon dioxide compression costs associated with further chemical processing e.g. for underground carbon sequestration and/or for subsurface enhanced hydrocarbon recovery and/or for the manufacture of urea.

L'invention porte sur un procédé pour le retrait et la récupération du dioxyde de carbone à partir d'un courant gazeux, en particulier le retrait et la récupération du dioxyde de carbone, et facultativement du sulfure d'hydrogène, à partir d'un courant de gaz naturel et/ou synthétique. De plus, la présente invention prévoit la libération du dioxyde de carbone retiré et récupéré, et facultativement le sulfure d'hydrogène, à une pression élevée, réduisant ainsi les coûts élevés de compression du dioxyde de carbone associés à un autre traitement chimique, par exemple, pour une séquestration du carbone souterrain et/ou pour une récupération des hydrocarbures améliorés en sous-surface et/ou pour la fabrication de l'urée.

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