Process for thermal cracking of heavy oil

Details Process for thermal cracking of heavy oil Process for thermal cracking of heavy oil

C - Chemistry, Metallurgy

10

G

196/166

C10G 9/32 (2006.01) C10G 47/30 (2006.01)

Patent

CA 1280710

ABSTRACT OF THE DISCLOSURE Disclosed is a process for the thermal cracking of heavy oils, which comprises a thermal cracking step of contacting a heavy oil with a fine powder of a porous material fluidized by a fluidizing gas to mainly obtain a light oil and a regenerating step of gasifying and removing coke adhering to the fine powder taken out from the thermal cracking step while fluidizing the fine powder by a molecular oxygen-containing gas and a steam- containing gas, the fine powder being circulated between the two steps, wherein fine spherical particles having a pore volume of 0.2 to 1.5 cm3/g, a specific surface area of 5 to 1500 m2/g, an average pore size of 10 to 10000 and a weight average size of 0.025 to 0.25 mm, in which these properties are stably maintained at the temperature adopted for the thermal cracking, are used as the fine powder, and a hydrogen gas is made present at the thermal crakcing step, the partial pressure of hydrogen is maintained at about 0.5 to about 5 Kg/cm2 and the total pressure at said step is maintained at about 1 to about 10 Kg/cm2-G.

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