This image represents an FBR, also called a Fluidized Catalytic Cracking Unit (FCCU) in the petroleum refining industry. This reactor system uses a fluidized catalyst to "crack" large gas oil molecules into smaller molecules. The system breaks apart larger C14 molecules into C4 and C8 molecules or into C5 and C7 molecules.

As there are tremendous advantages to using FBRs for processing, it is important to understand the fundamental concepts behind them. These next few pages will outline the concepts be hind the fluidized bed process.

Cut-away view of FCCU
Copyright, Exxon 1990

Overview of Fluidization

           This set of pages contains animations for Fluidized Beds.

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