FCC process using high cat:oil ratios

Details FCC process using high cat:oil ratios FCC process using high cat:oil ratios

1993-01-07

1994-06-28

Breneman, R. Bruce

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208113, 208132, 208118, 208159, C10G 1118, C10G 1105

Patent

active

053244184

ABSTRACT:
A process for fluidized catalytic cracking of heavy feed to minimize yields of heavy fuel oil is disclosed. Operating a reactor with a 15:1 to 30:1 cat:oil ratio, at a reactor temperature of 1000.degree. to 1100.degree. F., and 1.5 to 5.0 seconds of catalyst residence time produces large volumes of gasoline and less than 5.0 wt % heavy fuel oil. A catalyst cooler is essential, to provide cool catalyst to the riser while permitting the regenerator to operate at 1200.degree. F. or higher. FCC catalyst with over 25 wt % large pore zeolite is preferred.

REFERENCES:
patent: 4800014 (1989-01-01), Hays et al.
patent: 4960503 (1990-10-01), Haun et al.
patent: 5073249 (1991-12-01), Owen
Speight, James G., The Chemistry and Technology of Petroleum, Marcel Dekker, Inc., New York (1990).
Ind. Eng. Chem. Res., vol. 29, No. 6 1990 "Development of Catalytic Cracking Technology . . . " Avidan et al.

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