Process for steam cracking heavy hydrocarbon feedstocks

Details Process for steam cracking heavy hydrocarbon feedstocks Process for steam cracking heavy hydrocarbon feedstocks

C - Chemistry, Metallurgy

10

G

C10G 9/00 (2006.01) C10G 9/36 (2006.01)

Patent

CA 2490403

A process for feeding or cracking heavy hydrocarbon feedstock containing non- volatile hydrocarbons comprising: heating the heavy hydrocarbon feedstock, mixing the heavy hydrocarbon feedstock with a fluid and/or a primary dilution steam stream to form a mixture, flashing the mixture to form a vapor phase and a liquid phase, and varying the amount of the fluid and/or the primary dilution steam stream mixed with the heavy hydrocarbon feedstock in accordance with at least one selected operating parameter of the process, such as the temperature of the flash stream before entering the flash drum.

L'invention concerne un procédé d'alimentation ou de craquage d'une charge d'hydrocarbures lourds, comprenant les étapes suivantes : chauffage de la charge d'hydrocarbures lourds, mélange de cette charge avec un fluide et/ou un courant de vapeur de dilution primaire pour former un mélange, vaporisation par flash du mélange pour former une phase vapeur et une phase liquide, et variation de la quantité de fluide et/ou du courant de vapeur de dilution primaire mélangé avec la charge d'hydrocarbures lourds, en conformité avec au moins un paramètre de fonctionnement sélectionné du procédé, tel que la température du courant de détente avant l'entrée dans le ballon de détente.

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