CatCracking Process

The FCCU is widely used to convert the high-boiling hydrocarbon fractions of petroleum crude oils to more valuable gasoline, olefinic gases and other products.

Original diagram is located at  http://en.citizendium.org/wiki/Fluid_catalytic_cracking 

At the Citizendium you can learn more about reactor and regenerator, distillation column, ergnerator flue gas, chemistry, catalysts and history.

These are the major FCC designers and licensors:
•CB&I Lummus
•ExxonMobil Research and Engineering (EMRE)
•Shell Global Solutions International
•Stone & Webster Engineering Corporation (SWECO) / Institut Francais du Petrole (IFP)
•Universal Oil Products (UOP)
•Kellogg Brown & Root (KBR)