Closed reactor fcc system with provisions for surge capacity

Details Closed reactor fcc system with provisions for surge capacity Closed reactor 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 1238877

CLOSED REACTOR FCC SYSTEM WITH PROVISIONS FOR SURGE CAPACITY ABSTRACT The present invention involves a fluid catalytic cracking (FCC) apparatus and process comprising a reactor riser zone, a primary and a secondary cyclones, connected in series to the riser zone, and a stripping zone. The riser zone, the primary and the secondary cyclones, and the stripping zone, are placed within a single reactor vessel. The primary cyclone is connected to the reactor riser zone by an enclosed conduit which prevents random post-riser thermal cracking of the hydrocarbons after they exit the reactor riser zone. The conduit contains a trickle valve, or other means, to accommodate sudden increased surges of flow of the hydrocarbons and catalyst mixture.

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