Sánchez-Torres, Juan D.Jiménez-Rodríguez, EstebanJaramillo-Zuluaga, ÓscarBotero-Castro, HéctorLoukianov, Alexander2017-03-032017-03-032015-12Sanchez-Torres, J.D.; Jiménez-Rodríguez, E.; Jaramillo-Zuluaga, Ó; Botero-Castro, H. and Loukianov, A. "A Robust Extended State Observer For The Estimation Of Concentration And Kinetics In A CSTR". International Journal of Chemical Reactor Engineering. Volume 14, Issue 1, Pages 481–490, ISSN (Online) 1542-6580, ISSN (Print) 2194-5748, DOI: https://doi.org/10.1515/ijcre-2015-0149, December 2015.1542-6580http://hdl.handle.net/11117/4261This paper presents a state estimation structure for a Continuous Stirred Tank Reactor (CSTR), by means of an Asymptotic Observer jointly with a disturbance high order sliding mode-based estimator. The proposed estimation scheme allows the asymptotic reconstruction of the concentration inside the reactor based on the measures of the temperature inside the reactor and the temperature inside the jacket, in presence of changes in the global coefficient of heat transfer UA, the Arrhenius constant k0 and the activation energy E. Additionally, the structure is able to estimate UA and the kinetics term k0e−ERT. The properties of the proposed scheme are proved mathematically and verified through numerical simulations.engState observerChemical processState EstimatorState ObserversSliding ModesNonlinear ObserversContinuous Stirred Tank Reactor CSTRinfo:eu-repo/semantics/article