Reaction-diffusion model for steam gasification of single char particle: Implementation using finite difference method

Autores

  • Jessica Ortiz Florenciano
  • Diego González Weiberlen
  • Hyun Ho Shin

Resumo


Numerical simulations are powerful tools to study and analyze gasification processes. Among the applicable models, Computational Fluid Dynamics (CFD) models allow a detailed description of the phenomena taking place inside gasification reactors [1, 2]. The aim of this work is to provide a tool for the development of the terms associated to reaction kinetics needed for CFD models. Thus, the unsteady state steam gasification of a spherical porous char particle using the reaction-diffusion model, presented by [3], is implemented. This model simultaneously describes the kinetics of gasification reactions and the diffusion transport of gaseous species inside the particle.

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Publicado

2018-12-19

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