Decoking method

Details Decoking method Decoking method

1982-11-16

1984-06-12

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With prevention or removal of deleterious carbon...

208127, 585950, C10G 916

Patent

active

044540221

ABSTRACT:
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, all of the 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.

REFERENCES:
patent: 2563085 (1951-08-01), Utsinger
patent: 3507929 (1970-04-01), Happel et al.
patent: 4049540 (1977-09-01), Ueda et al.
patent: 4049541 (1977-09-01), Nakagawa et al.
patent: 4220518 (1980-09-01), Uchida et al.
patent: 4259177 (1981-03-01), Ueda et al.

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