Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Optimization of the synthesis gas modeling obtained from a fluidized bed gasifier using the Kuhn-Tucker multipliers
Submission Author:
Jordan Gutierrez , SP
Co-Authors:
Jordan Gutierrez, Ivonete Ávila, Andrés Armando Mendiburu Zevallos
Presenter: Jordan Gutierrez
doi://10.26678/ABCM.COBEM2017.COB17-0436
Abstract
The objective of this work was to develop a chemical equilibrium model for the syngas obtained from fluidized bed gasifiers using air, steam or oxygen as gasification agents. The developed method uses a chemical equilibrium model modified by chemical disequilibrium factors. These factors are determined using an optimization method that uses the Kuhn - Tucker multipliers. The modified chemical equilibrium model uses the three most commonly used chemical reactions in the syngas modeling, which are the methane formation reaction, the homogeneous water-gas reaction, and the methane reforming reaction. It was considered 7 experimental compositions of the syngas for which the parameter ER varies between 0 and 0.36, the parameter S/B varies between 0 and 1.32, volumetric oxygen flow rate of 1.5 Nm3 /h, and the gasification temperature (TGas) varies between 650 oC and 808 oC. The RMS error obtained for the different estimates of the composition of the syngas was considered admissible.
Keywords
Gasification, fluidized bed, Kuhn – Tucker multipliers
