Hydrocracking process product recovery method

Details Hydrocracking process product recovery method Hydrocracking process product recovery method

C - Chemistry, Metallurgy

10

G

C10G 65/12 (2006.01) C10G 49/22 (2006.01) C10G 65/00 (2006.01)

Patent

CA 2356167

A feed stream is first processed in a hydrotreating reaction zone and then the effluent is separated into three fractions in a high pressure separation zone. Controlled portions of the middle and heavy boiling point range hydrocarbon fractions from this separation zone are recycled through a low conversion hydrocracking zone. The recycled hydrocarbons flow into a hydrocracking zone and the effluent of this zone flows into the hydrotreating reaction zone or the high pressure separation zone.

Un circuit d'alimentation est traité en premier dans une zone de réaction par hydrotraitement, puis l'effluent est séparé en trois fractions dans une zone de séparation à haute pression. Des parties contrôlées des fractions d'hydrocarbures ayant des points d'ébullition d'hydrocarbures moyens ou lourds provenant de cette zone de séparation sont recyclées par passage dans une zone d'hydrocraquage à faible conversion. Les hydrocarbures recyclés passent dans une zone d'hydrocraquage et l'effluent quittant cette zone passe dans la zone de réaction par hydrotraitement ou dans la zone de séparation à haute pression.

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