Ebullating bed process for hydrotreatment of heavy crudes...

Details Ebullating bed process for hydrotreatment of heavy crudes... Ebullating bed process for hydrotreatment of heavy crudes...

C - Chemistry, Metallurgy

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C10G 45/00 (2006.01) C10G 35/10 (2006.01) C10G 45/08 (2006.01) C10G 45/16 (2006.01) C10G 47/00 (2006.01)

Patent

CA 1047427

ABSTRACT OF THE DISCLOSURE A process for the hydrotreatment, or hydroconversion, of heavy crudes and residue in an ebullating bed of catalyst, expanded to critical volume ranging from about 20 to 70 percent, of its settled volume, wherein the catalyst particles are metallized or coked, or both, and segregated on a weight basis and the heavier, more aged and inactive catalyst is collected and removed from the bottom of the bed, while fresh catalyst or precatalyst is added to the top of the bed. The ebullated bed can be staged in one or more initial reactors of a series, product therefrom being fed to a subsequent ebullated or fixed-bed reactor, or reactors. The ebullating bed reactor, or reactors from which the segregated aged catalyst is removed can be employed in series or in parallel.

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