Parametric Study of Gasification Processes in a BFB Coal Gasifier
Parametric Study of Gasification Processes in a BFB Coal Gasifier
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DOI：
10.1021/ie1023029
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发表时间：
2011-04
影响因子：
4.2
通讯作者：
L. Armstrong;S. Gu;K. Luo
中科院分区：
文献类型：
--
作者：
L. Armstrong;S. Gu;K. Luo
基于文献中的实验装置，建立了煤鼓泡流化床气化过程的欧拉-欧拉计算流体动力学（CFD）模型。修改基本模型以考虑模型设置中不同参数的变化。对基本模型的现有气体成分进行了随时间的平均，并用实验数据进行了验证，并与不同参数模型的现有结果进行了比较。研究还考虑了床层温度、床层高度、床层材料、传热系数和脱挥发模型等参数的变化对气化过程的不同影响。这样一个广泛的参数研究还没有进行欧拉-欧拉煤气化模型。
An Eulerian-Eulerian computational fluid dynamics (CFD) model of the gasification processes in a coal bubbling fluidized bed (BFB) is presented based on the experimental setup taken from the literature. The base model is modified to account for different parameter changes in the model setup. The exiting gas compositions for the base model have been averaged over time and validated with experimental data and compared to the exiting results for the different parameter models. An extensive study is also carried out which considers the variation of different parameters such as bed temperatures, bed height, bed material, heat transfer coefficients, and devolatilization models influenced the gasification processes in different ways. Such an extensive parametric study has yet to be carried out for an Eulerian-Eulerian coal gasification model.