Catalytic cracking process using cross-flow regenerator
Patent
·
OSTI ID:5598743
This patent describes an improvement in a process for the fluidized catalytic cracking (FCC) of a hydrocarbon by contact of a crackable hydrocarbon with a source of regenerated FCC catalyst in a cracking reactor to produce catalytically cracked products and coked FCC catalyst which is regenerated in a cross-flow regenerator which maintains a dense phase, bubbling fluidized bed of catalyst having a depth of at least 8 feet within a regenerator vessel having a diameter of at least 8 feet, and wherein at least 35% of the dense bed is stagnant and the coked cracking catalyst is added via a single coked catalyst inlet having an inlet diameter of at least 1 foot and connective with one side of the regenerator. It comprises providing a baffle within the regenerator dense bed which is operatively associated with the catalyst inlet to disperse and distribute incoming spent catalyst into at least two streams of spent catalyst within the dense bed and to reduce the amount of the dense bed which is stagnant.
- Assignee:
- Mobil Oil Corp., New York, NY (USA)
- Patent Number(s):
- US 4980048; A
- Application Number:
- PPN: US 7-431953
- OSTI ID:
- 5598743
- Country of Publication:
- United States
- Language:
- English
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