Abstract
A non-isothermal transient model has been developed to simulate the reduction process and thermal behaviour of a porous wustite pellet undergoing chemical reactions with syngas, a mixture of hydrogen, carbon monoxide, water vapour and carbon dioxide. The model describes the chemical reaction itself, the mass equation for each gaseous species and heat equation within the pellet. For solution of the governing equations, a computational fluid dynamic approach as a fully implicit formulation of the finite volume method was applied. The model has then been validated by comparison with experimental data from the literature. Pellet porosity, diameter, gas composition and temperature are all shown to influence wustite reduction.
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