Computational Fluid Dynamics Modeling of Biomass Gasification in Circulating Fluidized-Bed Reactor Using the Eulerian–Eulerian Approach

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• 作者：Hui Liu ; Ali Elkamel ; Ali Lohi ; Mazda Biglari
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2013
• 出版时间：December 26, 2013
• 年：2013
• 卷：52
• 期：51
• 页码：18162-18174
• 全文大小：636K
• ISSN：1520-5045

文摘

A three-dimensional CFD (computational fluid dynamics) steady-state model was established to simulate biomass gasification in a circulating fluidized-bed (CFB) reactor. The standard k鈥撐?turbulence model was coupled with the kinetic theory of granular flow to simulate the hydrodynamics in the gasifier. The kinetics of homogeneous and heterogeneous reactions were studied and integrated with the equations of continuity, motion, and energy to describe the distributions of velocity, temperature, and concentration. The simulation results were compared to experimental data. The impacts of turbulence models, radiation model, water鈥揼as shift (WGS) reaction, and equivalence ratio (ER) were investigated to present a reliable understanding of biomass gasification in a CFB reactor.