Fluid catalytic cracking feedstock injection process

Details Fluid catalytic cracking feedstock injection process Fluid catalytic cracking feedstock injection process

C - Chemistry, Metallurgy

10

G

C10G 11/14 (2006.01) B01J 8/00 (2006.01) C10G 11/18 (2006.01)

Patent

CA 2130037

FLUID CATALYTIC CRACKING FEEDSTOCK INJECTION PROCESS (D#79,596-F) ABSTRACT OF THE DISCLOSURE The invention is a method for mixing feedstock with fluidized catalyst in a fluid catalytic cracking (FCC) riser reactor. A dispersed catalyst suspension is passed upwardly at a velocity of 0.5 to 4 ft/sec. Atomized feedstock is injected downwardly at a velocity of -30 to -1000 ft./sec to produce a turbulently mixed reaction suspension. Vaporizing feedstock rapidly accelerates the reaction suspension in approximately plug flow. The slip factor between catalyst and hydrocarbon in the reaction suspension defining the departure from ideal plug flow is thereby reduced.

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