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Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers

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  • Amaro, Jordan
  • Mendiburu, Andrés Z.
  • Ávila, Ivonete

Abstract

This work aims to develop a modified chemical equilibrium model to accurately determine the syngas (synthesis gas) composition obtained from fluidized bed gasifiers. In order to do so, an optimization method was applied to determine the correction factors which modify the chemical equilibrium constants, the carbon conversion efficiency and the enthalpy of reaction. The gasification agents considered for this study were: air, steam, air–steam, and air–steam–oxygen. The optimization method used the Kuhn–Tucker multipliers to obtain small RMS errors.

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  • Amaro, Jordan & Mendiburu, Andrés Z. & Ávila, Ivonete, 2018. "Modeling of syngas composition obtained from fluidized bed gasifiers using Kuhn–Tucker multipliers," Energy, Elsevier, vol. 152(C), pages 371-382.
    • Handle: RePEc:eee:energy:v:152:y:2018:i:c:p:371-382
    DOI: 10.1016/j.energy.2018.03.141
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    References listed on IDEAS

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    1. Loha, Chanchal & Chattopadhyay, Himadri & Chatterjee, Pradip K., 2011. "Thermodynamic analysis of hydrogen rich synthetic gas generation from fluidized bed gasification of rice husk," Energy, Elsevier, vol. 36(7), pages 4063-4071.
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    3. Rodriguez-Alejandro, David A. & Nam, Hyungseok & Maglinao, Amado L. & Capareda, Sergio C. & Aguilera-Alvarado, Alberto F., 2016. "Development of a modified equilibrium model for biomass pilot-scale fluidized bed gasifier performance predictions," Energy, Elsevier, vol. 115(P1), pages 1092-1108.
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    5. Wenyu Sun & Ya-Xiang Yuan, 2006. "Optimization Theory and Methods," Springer Optimization and Its Applications, Springer, number 978-0-387-24976-6, June.
    6. Mendiburu, Andrés Z. & Carvalho, João A. & Zanzi, Rolando & Coronado, Christian R. & Silveira, José L., 2014. "Thermochemical equilibrium modeling of a biomass downdraft gasifier: Constrained and unconstrained non-stoichiometric models," Energy, Elsevier, vol. 71(C), pages 624-637.
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    Cited by:

    1. Pio, D.T. & Tarelho, L.A.C., 2020. "Empirical and chemical equilibrium modelling for prediction of biomass gasification products in bubbling fluidized beds," Energy, Elsevier, vol. 202(C).
    2. Tomasz Chmielniak & Leszek Stepien & Marek Sciazko & Wojciech Nowak, 2021. "Effect of Pyrolysis Reactions on Coal and Biomass Gasification Process," Energies, MDPI, vol. 14(16), pages 1-21, August.

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