Closed cyclone fcc system with provisions for surge capacity

Details Closed cyclone fcc system with provisions for surge capacity Closed cyclone fcc system with provisions for surge capacity

C - Chemistry, Metallurgy

10

G

196/112

C10G 9/32 (2006.01) B01J 8/00 (2006.01) C10G 11/18 (2006.01)

Patent

CA 1239107

CLOSED CYCLONE FCC SYSTEM WITH PROVISIONS FOR SURGE CAPACITY ABSTRACT The present invention involves a fluid catalytic cracking (FCC) process and apparatus containing a reactor riser zone and radially extending sidearms as the first catalyst-hydrocarbon product separation means. Hydrocarbon products separated in the sidearms are conducted through an enclosed passageway to a secondary separation means, such as a cyclone. The catalyst is also conducted through the enclosed passageway to a stripping apparatus, wherein entrained hydrocarbons are removed therefrom. The enclosed passageway contains a means for accommodating sudden surges of catalyst flow and increased pressure, e.g., a trickle valve.

462452

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