Abstract: “In this article, an optimal controller design for a continuous stirred-tank reactor (CSTR) is proposed. CSTR is widely used in chemical processes as a major processing unit. Firstly, we started with extracting a linearized model for CSTR. This model is used as the basis point for the controller design. To control, we designed a Linear Quadratic Regulator (LQR) controller in order to suppress the effects of disturbances in the inflow liquid. Our main aim is to maintain the concentration and volume of liquid in the CSTR to the given set point. The expectations agree with the simulation results.”

Keywords: Continuous Stirred Tank Reactor, LQR, Optimal Control