Continuous stirred tank reactors: easy to stabilise?

The objective of this work is to make use of methodologies and tools from nonlinear Lyapunov theory in the design of bounded control laws for the temperature stabilisation of Continuous Stirred Tank Reactors CSTRs with exothermic or endothermic reactions Simple output feed back control laws i e control laws that feed back only the available mea surements are designed It is shown that these controllers yield Global Asymptotic Stability GAS and do not require precise knowledge of the system parameters The capabilities of the proposed method to handle control input constraints and model uncertainty are also discussed The work is then completed with the analysis of two case studies the classical rst order irreversible reaction A B and the more complex van der Vusse reaction mechanism