Profile: CENCO Refining Company is specialized in supplying 2,500 Horsepower electric motors, 20 MMBTU/hr natural gas fired heater, control system components, boilers, boiler feed water pumps, FCC gasoline depentanizer, filter press, fin-fan heat exchangers, heat exchangers, hydrocracker fractionator column and hydrogen plant. The depentanizer is intended to control the vapor pressure of finished gasoline by removing pentane from the FCC gasoline stream. Pentane reduction is determined by the desired fuel specification. The pentane would be stored and used as fuel gas. The gasoline stream from the FCC is fed to the depentanizer column after heat exchange with the bottom product. Overhead gas is condensed and accumulated in a receiver. Reflux is returned to the column and pentane routed to storage. The resulting low-RVP gasoline is cooled and sent to storage.