Obtaining More Gasoline in CCR Unit by Using of ANFIS

Naphtha Continuous Catalytic Reforming (CCR) is one of the most beneficial processes in any refineries whose duty is increasing the octane number especially heavy naphtha. In this study, the parameters were obtained from a live Distributed Control Syste (DCS) and lab during two years of operation. Firstly, important and effective parameters on changing RON were selected consulting experienced operators. Then Adaptive Neuro-Fuzzy Inference system (ANFIS) used in order to find the optimum operating conditions. The best model extracted, and obtained data were applied to the live CCR unit with the capacity of 30000 bbl day-1. There search octane number )RON( reached to 99.7 and gasoline saved (640 bbl day-1)from this increasing of RON in final gasoline pool, subsequently. The feed final boiling point 165°C, coke on catalyst 2.42 wt%, recycle gas flow rate 24.2Tonne/hr, reactor inlet temperature 527°C, catalyst transfer rate 987.24 Kg/hr and H2/HC mol ratio 2.82