Process for reducing coke deposition in thermal upgrading...

Details Process for reducing coke deposition in thermal upgrading... Process for reducing coke deposition in thermal upgrading...

C - Chemistry, Metallurgy

10

G

196/151

C10G 47/02 (2006.01) C10G 47/00 (2006.01)

Patent

CA 2025125

"IMPROVEMENTS FOR REDUCING COKE DEPOSITION IN THERMAL UPGRADING PROCESSES" ABSTRACT OF THE DISCLOSURE In a hydrocracking process, a feed mixture comprising a heavy oil containing asphaltenes and sulfur moieties, an oil- soluble metal compound additive (e.g. Fe(CO)5) which will impede coalescence of coke precursors, and a hydrocarbon diluent which is a solvent for the asphaltenes, is mixed to disperse the additive and then reacted in a reactor wherein a prolific hydrogen flow is passed through the breadth and length of the charge to mix the charge and strip light ends. The combination of features results in impeding the evolution of coke precursors so that a substantial proportion thereof remains in the agglomerate state and in improving the conversion of the 504°C+ part of the feedstock.

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