Petroleum refining is a chemical process in which raw material (crude oil) is converted into finished commercial products for end users. The fluid catalytic cracking (FCC) unit is a key asset in refineries that require optimized processes in the context of engineering design. Following the initial stage of separation of crude oil in a distillation tower, an additional 40 percent can be obtained in the gasoline pool by further conversion of the reduced crude oil product (remainder from the distillation tower) using a catalyst in the FCC process. . Effective removal of sulfur oxides, nitrogen oxides, carbon and heavy metals from FCC gasoline requires higher separation efficiency and is of paramount environmental importance. The FCC unit is essentially a reactor and regeneration system that uses cyclone systems for separation.