##  [Fluid Catalytic Cracking](/fluid-catalytic-cracking) 

  ##  [Fluid Catalytic Cracking](https://engineering.quantumdictionary.io/fluid-catalytic-cracking-0) 

  

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**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A continuous refinery process in which vaporized heavy hydrocarbon feed is contacted with a hot, fluidized solid catalyst (commonly zeolitic) in a riser/reactor to break larger hydrocarbon molecules into lighter products; catalyst and hydrocarbons circulate between reactor and regenerator to remove coke and maintain catalyst activity.