Recracking mixtures of cycle oil and cat naphtha for...

Details Recracking mixtures of cycle oil and cat naphtha for... Recracking mixtures of cycle oil and cat naphtha for...

C - Chemistry, Metallurgy

10

G

C10G 11/18 (2006.01) C10G 51/02 (2006.01)

Patent

CA 2402052

A process for increasing the yield of C3 and C4 olefins by injecting light cat naphtha and cat cycle oil together with steam into an upstream reaction zone of a FCC riser reactor. The products of the upstream reaction zone are conducted to a downstream reaction zone and combined with fresh feed in the downstream reaction zone.

La présente invention concerne un procédé permettant d'augmenter le rendement d'oléfine en C¿3? et C¿4? par l'injection d'un naphta léger soumis à un craquage catalytique et d'huile de cycle soumis à un craquage catalytique avec de la vapeur dans une zone en amont d'un réacteur à colonne montante de craquage catalytique fluide. Les produits de la zone de réaction en amont sont entraînés vers la zone de réaction en aval et combinés avec une charge nouvelle dans la zone de réaction en aval.

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