C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 11/00 (2006.01) C10G 11/18 (2006.01)
Patent
CA 2156126
A fluidized process which comprises contacting a hydrocarbon feedstock with a fluidized particulate solid in a contacting zone wherein carbonaceous deposits accumulate on the solid and the solid becomes spent and wherein the carbonaceous deposits are burned from the spent solid to produce a regenerated solid; removing a stream of the fluidized spent solid and entrained hydrocarbons from the contacting zone; introducing the fluidized spent solid/entrained hydrocarbon stream and a stream of hot regenerated solid into a lower portion of a zone; introducing a stream of a fluid stripping medium, e.g, water and/or steam into the lower portion of the stripping zone to contact the spent sold therein; passing a stream of the spent solid mixed with the stripping medium and the hot regenerated solid upwardly in the stripping zone to an upper portion thereof under dilute phase stripping conditions; separating the spent solid from the hydrocarbons and stripping medium in a separation zone connected to the upper portion of the stripping zone; passing a fluidized stream of separated solid from the separation zone to the regeneration zone wherein said carbonaceous deposits are burned therefrom to produce a regenerated solid for return to the reaction zone; removing a stream containing vaporized separated hydrocarbons and stripping medium from the separation zone; separating the vaporized separated stripping medium from the hydrocarbons; recycling the separated stripping medium to the stripping zone. The process also contemplates introducing the medium into a lower portion of a dilute phase zone to cool the solid.
Bar-Co Processes Joint Venture
Smart & Biggar
LandOfFree
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