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Energies 2016, 9(2), 99; doi:10.3390/en9020099

One-Dimensional Modeling of an Entrained Coal Gasification Process Using Kinetic Parameters

School of Mechanical Engineering, Pusan National University, Pusan 46241, Korea
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Academic Editor: Mehrdad Massoudi
Received: 10 August 2015 / Accepted: 28 January 2016 / Published: 6 February 2016
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Abstract

A one-dimensional reactor model was developed to simulate the performance of an entrained flow gasifier under various operating conditions. The model combined the plug flow reactor (PFR) model with the well-stirred reactor (WSR) model. Reaction kinetics was considered together with gas diffusion for the solid-phase reactions in the PFR model, while equilibrium was considered for the gas-phase reactions in the WSR model. The differential and algebraic equations of mass balance and energy balance were solved by a robust ODE solver, i.e., an semi-implicit Runge–Kutta method, and by a nonlinear algebraic solver, respectively. The computed gasifier performance was validated against experimental data from the literature. The difference in product gas concentration from the equilibrium model, and the underlying mechanisms were discussed further. The optimal condition was found after parameter studies were made for various operating conditions. View Full-Text
Keywords: coal gasification; entrained flow; reactor model; kinetic parameters; parameter studies; equilibrium model coal gasification; entrained flow; reactor model; kinetic parameters; parameter studies; equilibrium model
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Hwang, M.; Song, E.; Song, J. One-Dimensional Modeling of an Entrained Coal Gasification Process Using Kinetic Parameters. Energies 2016, 9, 99.

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