Decoking method

Details Decoking method Decoking method

C - Chemistry, Metallurgy

10

G

196/173

C10G 9/16 (2006.01) C10G 9/32 (2006.01)

Patent

CA 1182771

DECOKING METHOD Abstract of the Disclosure Coke deposited within the gas passages of a dual tower type, fluidized bed apparatus for thermally cracking hydrocarbon oils is removed by combustion through contact with a stream of an oxygen-containing, high temperature combustion gas without a need to disjoint the apparatus. The apparatus is comprised of heating and cracking towers each adapted for containing a mass of fluidized solid particles continuously recirculating between the two towers. In one embodiment, the entire solid particles are discharged from the apparatus and a stream of the oxygen-containing combustion gas, produced in a combustion furnace connected to the heating tower, is allowed to pass through the gas passages. - 1 -

415723

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