05-01-2016, 04:34 PM
Outline
What is FCC?
Why use circulating Fluidized Bed Reactor in FCC?
Operating Characteristics
Description of the Process
Heat Balance
Pressure Balance
Conclusions
What is FCC?
Primary conversion process in petroleum refinery.
The unit which utilizes a micro-spherodial catalyst (zeolitic catalyst) which fluidizes when properly aerated.
The purpose is to convert high-boiling petroleum fractions (gas oil) to high-value, high-octane gasoline and heating oil.
Why use Circulating Fluidized Bed in FCC?
Compared with Fixed Bed, Fluidized Bed
CFB – fast fluidization regime
CFB good for catalyst size < 0.2 mm
Excellent in:
Gas-solid effective contact
Catalyst effectiveness
Catalyst internal temperature control
Catalyst regeneration