Combination visbreaking and hydrorefining with recycle of...

Details Combination visbreaking and hydrorefining with recycle of... Combination visbreaking and hydrorefining with recycle of...

C - Chemistry, Metallurgy

10

G

196/89

C10G 65/12 (2006.01) C10G 69/02 (2006.01)

Patent

CA 1248479

ABSTRACT OF THE DISCLOSURE A heavy hydrocarbon oil comprising consti- tuents boiling above 1050°F is upgraded by a combination visbreaking or hydrovisbreaking and hydrorefining process in which at least a portion of the hydrorefined bottoms fraction is recycled to the visbreaking zone. The hydrorefining zone is operated at conditions to convert at least a portion of the 1050°F+ constituents to lower boiling hydrocarbons.

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