Analysis of Periodic Operation of Acetic Anhydride Hydrolysis in a Continuous Stirred Tank Reactor by a First-Harmonic Balance

Resumen: The periodic operation in a CSTR for the hydrolysis of acetic anhydride was studied by a first-harmonic balance approach. Two temperature conditions were evaluated for the system (low and high temperature) and the performance was examined for different periodic signals (i.e., feed concentration, feed temperature and jacket temperature) over a range of frequencies and amplitudes. The first-harmonic balance approach simplified the differential equations model to a set of nonlinear algebraic equations and the nonlinearities, like reaction kinetic, were approximate considering the first bases of the Fourier series. The results showed that the first-harmonic balance estimated the response of the time-average variables (i.e., concentration and reactor temperature) for the periodic operation of the CSTR, and it was possible determine the optimal conditions to improve performance of the acetic anhydride hydrolysis.

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Rolando Zenteno-Catemaxca, Roel Hernandez-Rodríguez, Miguel A. Morales-Cabrera & Eliseo Hernandez-Martinez. Analysis of Periodic Operation of Acetic Anhydride Hydrolysis in a Continuous Stirred Tank Reactor by a First-Harmonic Balance. Memorias del Congreso Nacional de Control Automático, pp. 202-207, 2021.

Palabras clave

Periodic operation, first harmonic balance, numeric simulation, chemical reactors

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