Otimização de reator batelada alimentada para hidrolise de palha de cana de açúcar aplicando a teoria do controle ótimo
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2016-09-30
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Universidade Federal de Goiás
Resumo
From the economic point of view it is important to process high charges of solid in
enzimatic hydrolysis of the lignocellulosic residues for the production of 2G ethanol,
but batch operation with high initial charges of substrate can cause inefficient mixture,
damaging the reactional process. An attractive alternative is operating the reactors in fed
batch. The aim of this work was to determine, applying the theory of optimal control,
the optimal feeding profile of substrate in bench reactor. For this, it was tested two
kinetic of Michaelis-Menten: pseudo-homogeneous Michaelis-Menten kinetic and
Michaelis Menten kinetic with inhibition by the product, in the last kinetic was obtained
the best fit to experimental data. The developed algorithm was run in Matlab® software
and the simulation results were experimentally validated. Enzymatic hydrolysis assays
were performed with hydrothermally pre-treated sugar cane straw followed by the
alkaline delignification. It was obtained good fiting of the simulation data with respect
to the experimental data, with values of glucose final concentration close to 164.647 g/L
(triplicate average) and in simulation the concentration was 174.93 g/L. Proving that the
sugar cane straw, besides being a good feedstock cheap and abundant, it has a great
energetic potential. Furthermore, the optimal control strategy was very efficient in
optimization of the proposed problem.
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PINTO, V. D. P. Otimização de reator batelada alimentada para hidrolise de palha de cana de açúcar aplicando a teoria do controle ótimo. 2016. 57 f. Dissertação (Mestrado em Engenharia Química) - Universidade Federal de Goiás, Goiânia, 2016.