Authors : P. Elamurugan and K. Siva
Abstract: The proposed study has been examined and reviewed the published experimental results related to reactor-regenerator system of Fluid Catalytic Cracking Unit (FCCU). It also focuses the limitations of existing methods for controlling the temperature in the reactor-regenerator system. In the present study, complex dynamic model of the reactor regenerator system has been developed and subsequently used with the controller. FCCU is widely used to convert the high-boiling, longer chainhydrocarbon fractions of petroleum crude oils to more valuable gasoline, olefinic gases and other products.Because of its feed processing tractability, the FCC process is considered as a primary conversion unit in a unified refinery and ideal FCC operation can have a significant impact on the refinery profitability. Control of the FCC continues to be a challenging and significant problem due to interaction between the loops. So, there is a real need for a control logic that effectively utilizes the available process measurements and model information characteristic of the process. Relative gain array is used to minimize the interaction and select the variable pairings and then decoupler is developed to remove interaction completely.Stabilization can be achieved through simulated implementation of a Model Predictive Control (MPC).
P. Elamurugan and K. Siva, 2016. Comparison of Decoupler with PID Controller and Model Predictive Controller for the Fluid Catalytic Cracking Unit in Petroleum Refinery. Asian Journal of Information Technology, 15: 3356-3365.