Method of removing and solidifying carbon dioxide from a...

B - Operations – Transporting – 01 – D

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Details

B01D 47/10 (2006.01) B01D 53/00 (2006.01) B01D 53/24 (2006.01) B04C 3/00 (2006.01) C01B 31/22 (2006.01) C10L 3/10 (2006.01) F25J 3/06 (2006.01)

Patent

CA 2710915

The invention relates to a method of removing carbon dioxide from a fluid stream by a fluid separation assembly. The fluid separation assembly has a cyclonic fluid separator (1) with a tubular throat portion (4) arranged between a converging fluid inlet section (3) and a diverging fluid outlet section (5) and a swirl creating device (2). The separation vessel (21) has a tubular section (22) positioned on and in connection with a collecting tank (23). In the method, a fluid stream with carbon dioxide is provided. Subsequently, a swirling motion is imparted to the fluid stream so as to induce outward movement. The swirling fluid stream is then expanded such that components of carbon dioxide in a meta-stable state within the fluid stream are formed. Subsequently, the outward fluid stream (7) with the components of carbon dioxide is extracted from the cyclonic fluid separator (1) and provided as a mixture to the separation vessel (21). The mixture is then guided through the tubular section (22) towards the collecting tank (23) while providing processing conditions such that solid carbon dioxide is formed. Finally, solidified carbon dioxide is extracted (26).

L'invention concerne un procédé de séparation du dioxyde de carbone d'un écoulement de fluide par un ensemble de séparation de fluides. L'ensemble de séparation de fluides présente un séparateur de fluides (1) à cyclone qui présente une partie tubulaire en gorge (4) agencée entre une partie convergente (3) d'entrée de fluide et une partie divergente (5) de sortie de fluide, et un dispositif (2) de création de tourbillon. La cuve de séparation (21) présente une partie tubulaire (22) située sur une cuve de collecte (23) et reliée à cette dernière. Dans le procédé, on délivre un écoulement de fluide contenant du dioxyde de carbone. Ensuite, un mouvement de tourbillonnage est conféré à l'écoulement de fluide de manière à induire un mouvement vers l'extérieur. L'écoulement de fluide en tourbillon est ensuite détendu de manière à former des composantes dioxyde de carbone à l'état métastable dans l'écoulement de fluide. Ensuite, l'écoulement de fluide vers l'extérieur (7) qui contient les composantes dioxyde de carbone est extrait du séparateur de fluides (1) à cyclone et est délivré sous forme de mélange à la cuve de séparation (21). Le mélange est ensuite guidé dans la partie tubulaire (22) en direction de la cuve de collecte (23) tout en assurant des conditions de traitement telles que l'on forme du dioxyde de carbone solide. Le dioxyde de carbone solidifié est ensuite extrait (26).

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