Safe and automatic method for removal of coke from a coke...

C - Chemistry – Metallurgy – 10 – B

Patent

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Details

C10B 33/12 (2006.01) C10B 1/04 (2006.01) C10B 25/10 (2006.01) C10B 55/00 (2006.01) C10B 1/00 (2006.01) C10B 1/02 (2006.01) C10B 1/04 (2006.01) C10B 3/00 (2006.01) C10B 25/00 (2006.01) C10B 25/02 (2006.01) C10B 25/04 (2006.01) C10B 25/08 (2006.01) C10B 25/10 (2006.01) C10B 25/16 (2006.01) C10B 25/20 (2006.01) C10B 25/22 (2006.01)

Patent

CA 2473105

A closed system that eliminates worker exposure during coker vessel decoking operations and thereby significantly reduces risks to workers also increase coking capacity by reducing the coking cycle time. The closed system preferably comprises a coker vessel (45) with a side entry feed line (50) attached to the vessel (45) above the vessel bottom (75); a closure housing (60) with laterally moveable closure member therein sealed to the vessel bottom (75) either directly without, or indirectly with an adapting spool member (85) and; a coke chute (65) sealed to the bottom of the closure housing (60). The system can be remotely and repetitively operated through numerous coking/decoking cycles without removal of any system element.

Selon cette invention, le système fermé utilisé permet d'éliminer l'exposition de l'ouvrier lors des opérations de décokage d'un récipient de coke et réduit ainsi considérablement les risques courus par les ouvriers. Ce système accroît également la capacité de cokéfaction par la réduction de la durée du cycle de cokéfaction. Ce système fermé comprend de préférence un récipient (45) de coke comportant une conduite d'alimentation (50) à admission radiale fixée au récipient (45) au-dessus du fond (75) du récipient ; un logement (60) de fermeture comportant un élément de fermeture latéralement mobile scellé au fond (75) du récipient soit directement sans soit indirectement avec un élément de corps d'adaptation (85) et un couloir (65) de coke scellé au fond du logement (60) de fermeture. Ce système peut être actionné à distance et de manière répétée pour de nombreux cycles de cokéfaction/décokage sans que cela implique le retrait d'un élément du système.

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