Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/17898
Tipo: Artigo
Título: Retrieval of kinetic rates in reactions with semi batch liquid phase using ill-posed inverse problem theory
Autor(es): Borges, Emílio
Virtuoso, Luciano S.
Braga, João Pedro
Sebastião, Rita C. O.
Abstract: A neural network procedure to solve inverse chemical kinetic problems is discussed in this work. Rate constants are calculated from the product concentration of an irreversible consecutive reaction: the hydrogenation of Citral molecule, a process with industrial interest. Simulated and experimental data are considered. Errors in the simulated data, up to 7% in the concentrations, were assumed to investigate the robustness of the inverse procedure. Also, the proposed method is compared with two common methods in nonlinear analysis; the Simplex and Levenberg-Marquardt approaches. In all situations investigated, the neural network approach was numerically stable and robust with respect to deviations in the initial conditions or experimental noises.
Palavras-chave: Kinetic
Ill-posed inverse problem
Dynamical optimization
Editor: Química Nova
Tipo de Acesso: Open Access
URI: http://dx.doi.org/10.1590/S0100-40422011000200008
http://www.locus.ufv.br/handle/123456789/17898
Data do documento: 8-Dez-2010
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