Process for hydrocracking of petroleum heavy oil

Details Process for hydrocracking of petroleum heavy oil Process for hydrocracking of petroleum heavy oil

C - Chemistry, Metallurgy

10

G

C10G 65/12 (2006.01)

Patent

CA 2314033

A process for hydrocracking of petroleum heavy oil containing heavy metals, such as vacuum residue, which gives desulfurized and denitrified light oil economically in high yields, while suppressing coke formation in prolonged continuous operations. The process consists of a first reaction step, in which a feedstock slurry composed of said petroleum heavy oil and limonite iron ore (as a catalyst) is supplied, together with hydrogen, into a suspended-bed reactor for hydrocracking of said heavy oil, a second reaction step, in which the gas-phase fraction [2] in the effluent [1] from said reactor is fed into a fixed-bed reactor filled with a Ni-Mo or Co-Mo catalyst for hydrotreating, a distillation step, in which the liquid phase fraction in the effluent from the reactor is distilled, and a recycling step, in which the liquid phase fraction [3] in the effluent [1] from the reactor and the heavy gravity component in the liquid phase fraction [3] are returned to the first reaction step.

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