Development of a Chemical Equilibrium Model of the Downdraft Fixed Bed Gasification Process with known Product Temperature, Using air as an Oxidizing Agent

A chemical equilibrium model for known outlet temperature of the products was carried out on a downdraft fixed bed gasifier. Biomass from oil palm kernel is used with proximate and ultimate analysis; the general gasification reaction takes into account the biomass moisture, the reaction products are...

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Bibliographic Details
Published in:Ingeniería y universidad 2020, Vol.24 (1)
Main Authors: Quintero Coronel, Daniel Andrés, Espinel Blanco, Edwin, Flórez Solano, Eder
Format: Article
Language:English
Subjects:
Beds (process engineering)
biomasa
Biomass
Carbon dioxide
chemical equilibrium
Downdraft
downdraft gasifier
Energy
energía de Gibbs
equilibrio químico
Equilibrium
Fixed bed reactors
Fixed beds
Gas composition
Gases
gasificador de corriente descendente
Gasification
Gibbs energy
Oxidation
Oxidizing agents
Reaction products
Software
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Summary:A chemical equilibrium model for known outlet temperature of the products was carried out on a downdraft fixed bed gasifier. Biomass from oil palm kernel is used with proximate and ultimate analysis; the general gasification reaction takes into account the biomass moisture, the reaction products are formed by CH4, H2O, N2, CO, CO2 and H2. The model is described in detail and the equations are solved using the EES software. The model shows the results obtained for temperature ranges from 500 K to 1500 K and 1.0 atm. The model is validated by direct comparison of the gas composition with the results reported in the literature for similar conditions, obtaining favorable results.
ISSN:0123-2126
2011-2769
DOI:10.11144/Javeriana.iyu24.dcem