C - Chemistry – Metallurgy – 10 – B
Patent
C - Chemistry, Metallurgy
10
B
C10B 55/00 (2006.01) C10B 57/06 (2006.01) C10G 9/00 (2006.01)
Patent
CA 2566121
A delayed coking process for making substantially free-flowing coke, preferably shot coke. A coker feedstock, such as a vacuum residuum, is heated in a heating zone to coking temperatures then conducted to a coking zone wherein volatiles are collected overhead and coke is formed. At least one polymeric additive is added to the feedstock prior to it being heated in the heating zone, prior to its being conducted to the coking zone, or both.
Il est prévu un procédé de cokéfaction temporisé pour obtenir du coke sensiblement non compacté, de préférence du coke granulé. On chauffe un produit de coke de départ, comme un résidu sous vide, dans une zone de chauffage pour atteindre des températures de cokéfaction, avant d~acheminer le produit dans une zone de cokéfaction dans laquelle on récupère les matières volatiles par le haut et où se forme le coke. On ajoute au moins un additif polymère au produit de départ avant chauffage dans la zone de chauffage, avant acheminement dans la zone de cokéfaction ou les deux.
Brown Leo D.
Siskin Michael
Varadaraj Ramesh
Borden Ladner Gervais Llp
Exxonmobil Research And Engineering Company
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