FCC process using high cat:oil ratios

U.S. Patent Number: 5324418

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.

Inventors: Muldowney; Gregory P. (Glen Mills, PA)

Assignee: Mobil Oil Corporation (Fairfax, VA)

Application Number: 08/001,682

Issued: 1994-06-28

Expired: 2006-06-28

Classes: 208/120.01 ; 208/113; 208/118; 208/132; 208/159

Field of search: 208/48Q,157,85,67,120,113,108,73,78,61,114,111,154,132,159

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