شبيه سازي عملكرد سامانه ي رآكتور (رايزر) كراكينگ كاتاليستي بستر سيال

Simulation of The Reactor(Riser) of fluid Catalytic Cracking System

The effective simulation of the fluid catalytic cracking (FCC) operation requires a good understanding of many factors such as reaction kinetic, fluid dynamics and feed and catalyst effects. In this dynamic model the reactor has been considered as a riser (isothermal). Due to high catalyst activity (catalyst has been regenerated and has high temperature), the cracking reactions are carried out in the riser. Because of complication of the catalytic cracking mechanism and existence of multi-components in the feed, to decrease the calculation content in the kinetic models, the reactants and products have been considered as a set of hydrocarbons, so these models are called "Lumped Models". To simulate the FCC riser, the five-lump model involved Gas oil, Gasoline, Coke, LPG and Dry gas (to predict the Gas Oil conversion and the product distribution) has been developed. Comparison of simulation results with the results in different articles shows that the simulation has been achieved accurately.