Fcc catalyst stripping method and apparatus

Details Fcc catalyst stripping method and apparatus Fcc catalyst stripping method and apparatus

C - Chemistry, Metallurgy

10

G

196/154

C10G 11/00 (2006.01) B01J 8/00 (2006.01) B01J 8/18 (2006.01) B01J 8/38 (2006.01) C10G 11/18 (2006.01)

Patent

CA 1277276

ABSTRACT A method and apparatus for improving the stripping of hydrocarbons from catalyst particles in a fluidized catalytic cracking (FCC) unit. A stripper vessel is located directly adjacent the exhaust barrel of a separator and immediately begins stripping hydrocarbon from catalyst particles. The stripper is sealed at the catalyst exit by a catalyst seal pot, with the drain sized to permit only a portion of catalyst flow to pass therethrough, with the remainder catalyst overflowing the seal pot. A short contact time stripper and catalyst particle deflector reduce the "residence" time of hydrocarbons with catalyst particles.

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