Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1993-05-13
1994-06-07
Breneman, R. Bruce
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208146, 208157, 208164, C10G 1118, C10G 3504
Patent
active
053186915
ABSTRACT:
A process and apparatus for mixing feed and catalyst in the base of a fluidized catalytic cracking (FCC) reactor are disclosed. Regenerated catalyst flows through an annular region into a deceleration zone of increased cross-sectional area which induces vortices of circulating catalyst. Liquid feed is injected into the vortices, preferably via radially distributed feed outlets on a centrally mounted, truncated cone injector support means having a vortex convergence prevention means just above the feed outlets. Preferably catalyst and feed accelerate from the mixing device into the base of a riser reactor.
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White, Frank H. "Fluid Mechanics" 1979, McGraw Hill pp. 278-279, 402-403, 357-358.
"50 Years of Catalytic Cracking", Oil & Gas Journal, Week of Jan. 8, 1990.
"Development of Catalytic Cracking Technology. A Lesson in Chemical Reactor Design", A. Avidan and R. Shinnar, Ind. Eng. Chem. Res. 1990, 29, 931-942.
Breneman R. Bruce
Keen Malcolm D.
McKillop Alexander J.
Mobil Oil Corporation
Stone Richard D.
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