Two-stage thermal and catalytic hydrocracking of heavy oils

Details Two-stage thermal and catalytic hydrocracking of heavy oils Two-stage thermal and catalytic hydrocracking of heavy oils

C - Chemistry, Metallurgy

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C10G 47/00 (2006.01) C10G 47/22 (2006.01) C10G 65/10 (2006.01)

Patent

CA 1094491

TWO-STAGE THERMAL AND CATALYTIC HYDROCRACKING OF HEAVY OILS ABSTRACT OF THE DISCLOSURE An improved process for the hydrocracking of heavy hydrocarbon oil, such as oils extracted from tar sands, in which the charge oil in the presence of an excess of hydrogen is passed upwardly through a first vertical hydro- cracking zone in the absence of a catalyst, an effluent emerging from the top of the zone is separated into a gaseous stream, containing a wide boiling range material from naphtha to heavy gas oil and a liquid stream containing heavy hydrocarbons, the gaseous stream together with added hydrogen is passed upwardly through a second vertical catalytic hydrogenating zone and the effluent from the catalytic hydrogenating zone is separated into a liquid product and a gaseous component containing predominantly hydrogen which can be reused. This process provides a simple and in- expensive procedure for obtaining from heavy oils lighter hydrocarbon oils having low sulphur and nitrogen contents.

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