Method for treating a hydrocarbon feedstock including resin...

C - Chemistry – Metallurgy – 10 – G

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C10G 67/04 (2006.01) B01J 23/00 (2006.01) C10G 47/00 (2006.01)

Patent

CA 2548455

The invention relates to a method for treating a hydrocarbon feedstock whose at least 80 % of compounds have a boiling point equal or higher than 340 ·C. Said method also involves resin removal and consists in transferring said feedstock for a fractionating stage for recovering at least one heavy fraction and at least one light fraction, in transferring at least one part of the heavy fraction for extracting stage for extracting resins contained in said heavy fraction and recovering a purified fraction, in producing a mixture containing at least one part of the purified fraction obtainable at the extracting stage and at least one light fraction obtainable at the fractionating stage and in transferring the thus obtained mixture for to a cracking stage.

L'invention porte sur un procédé de traitement, incluant un enlèvement des résines, d'une charge hydrocarbonée dont au moins 80% des composés ont un point d'ébullition supérieur ou égal à 340~C, dans lequel : - on envoie la charge dans une étape de fractionnement lors de laquelle on récupère au moins une fraction lourde et au moins une fraction légère, - on envoie une partie au moins de la fraction lourde dans une étape d'extraction lors de laquelle on extrait des résines contenues dans ladite fraction lourde et on récupère une fraction purifiée, - on réalise un mélange comportant au moins une partie de la fraction purifiée obtenu à l'étape d'extraction et au moins une fraction légère obtenue à l'étape de fractionnement, et - on envoie le mélange ainsi obtenu dans une étape de craquage.

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