Control method for direct-coupled fcc riser cyclone

Details Control method for direct-coupled fcc riser cyclone Control method for direct-coupled fcc riser cyclone

C - Chemistry, Metallurgy

10

G

C10G 11/18 (2006.01)

Patent

CA 2131034

In a direct-coupled cyclone system, the riser cyclone is positioned external to a containment vessel. The riser cyclone separator discharges separated catalyst to a catalyst stripper internal to the containment vessel. Means is provided for withdrawing stripping gas from the catalyst stripper and passing it under pressure control to the riser cyclone separator. The riser cyclone separator is inherently pressure staple relative to the catalyst stripper. The invention is particularly useful for retrofitting a direct-coupled cyclone separator to a preexisting containment vessel with limited free volume.

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