C - Chemistry – Metallurgy – 10 – B
Patent
C - Chemistry, Metallurgy
10
B
C10B 25/10 (2006.01) C10B 55/00 (2006.01) C10B 57/06 (2006.01) C10G 9/00 (2006.01)
Patent
CA 2564216
A method for producing and removing coke which has bulk morphology such that at least 30 volume percent is free-flowing under the force of gravity or hydrostatic forces from a delayed coker drum. At the completion of the fíll cycle, the coker drum, filled with hot coke, is cooled by steaming and then flooding it with water, thereby producing a coke/water mixture. The coke/water mixture is released from the coke drum through one or more drum closure/discharge throttling systems near the bottom of the coker drum.
Cette invention concerne un procédé de production et d'évacuation de coke qui présente une morphologie brute telle qu'au moins 30 % en volume du coke s'écoule librement sous l'effet de la force de gravité ou des forces hydrostatiques d'un unité de cokéfaction différée. A la fin du cycle de remplissage, l'unité de cokéfaction, remplie de coke chaud, est refroidie selon un procédé consistant à y injecter de la vapeur puis à l'inonder d'eau, ce qui produit un mélange coke/eau. Le mélange coke/eau est libéré de l'unité de cokéfaction moyen d'un ou plusieurs systèmes d'étranglement de fermeture/déchargement de l'unité situés à proximité de l'unité de cokéfaction.
Chen Te-Hung
Eppig Christopher P.
Siskin Michael
Sparks Steven W.
Borden Ladner Gervais Llp
Exxonmobil Research And Engineering Company
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