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. A continuous stirred tank reactor cstr exhibits complex nonlinear dynamics and is a benchmark equipment in many process industries sinha and mishra 2016 sinha and mishra 2018 that require continuous addition and withdrawal of reactants and products to maximize economy and to achieve optimal productivity in chemical plants these reactors are maintained at very high conversion rates. Temperature control of continuous stirred tank reactors by manipulation of fresh feed industrial engineering chemistry research when reactor capacity is limited by heat removal an often recommended control structure is to run with maximum coolant flow and manipulate feed flow rate to control reactor temperature tr f control. Control techniques that can be studied cover many important classical and modern design methods continuous stirred tank reactor system cstr is a typical chemical reactor system with complex nonlinear characteristics the system consists of two tanks as illustrated in figure 1 the concentration of the outlet flow of two chemical reactors will be. A cascade control technique using a sliding mode controller smc in the exterior circle and a pid controller in the interior circle to control the temperature of a continuous stirred tank reactor
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