Control of continuous stirred tank reactors example 34 continuous polymerization reactor consider a cstr where free radical polymerization of methyl methacrylate mma takes place with azo bis isobutyronitrile abib as initiator and tol uene as solvent the reactor is exothermic and a cool ing jacket allows the heat removal. The continuous stirred tank reactor also known as vat or backmix reactor mixed flow reactor or a continuous flow stirred tank reactor is a common model for a chemical reactor in chemical engineering and environmental engineering a cstr often refers to a model used to estimate the key unit operation variables when using a continuous agitated tank reactor to reach a specified output the mathematical model works for all fluids liquids gases and slurries the behavior of a cstr is often ap. Adaptive nonlinear control is investigated for continuously stirred tank reactor cstr systems using neural networks the cstr plant under study belongs to aclass of nonaffine nonlinear systems and contains an unknown parameter thatenters the model nonlinearly. For the temperature stabilisation of a class of continuous stirred tank reactors with exothermic or endothermic reactions simple output feedback control laws ie control laws that feed back . Continuous stirred tank reactor system cstr is a typical chemical reactor system with complex nonlinear characteristics where an efficient control of the product concentration in cstr can be