In this paper, the recent researches and developments on coal gasification modeling and simulation are described. Numerical models for the three chemical processes such as devolatilization, char gasification, and gas-phase reaction are reviewed and discussed for further development to improve accuracy. Recently the devolatilization models to describe the coal chemical structure with a simple expression have been proposed and validated on the laboratory-scale flames. It is essential to precisely model char gasification reaction as a rate-determining step and the formulation of the active sites sharing by the mixture and the pore structure formation are important in the modeling. It will become significant to take the elementary reactions into account in the gas phase reaction model. Large-eddy simulation of coal gasification on the laboratory-scale entrained flow gasifier is performed to demonstrate the numerical procedure. Results show the predicted temperature distribution qualitatively agrees with the experiment. Moreover, the gas-liquid-solid three-phase reacting flow simulation is preliminarily performed to capture the molten slag flow behavior within the gasifier. It is revealed that the three-phase simulation can give insight into the complex multiphase and multiphysics phenomena taking place within the gasifier to assess the design and the operating condition.

本文介绍了煤气化建模与模拟的最新研究进展。审查并讨论了三个化学过程（如脱挥发分，焦炭气化和气相反应）的数值模型，以进行进一步开发以提高准确性。最近，提出了用简单表达式描述煤化学结构的脱挥发分模型，并在实验室规模的火焰上进行了验证。精确地将焦炭气化反应作为速率确定步骤进行建模是必不可少的，混合物中共享的活性位点的形成以及孔结构的形成在建模中很重要。在气相反应模型中考虑基本反应将变得很重要。在实验室规模的气流床气化炉上进行了煤气化的大涡模拟，以证明数值过程。结果表明，预测的温度分布与实验基本吻合。此外，预先进行气-液-固三相反应流模拟以捕获气化炉内的熔融炉渣流动行为。结果表明，三相模拟可以深入了解气化炉内发生的复杂多相和多物理现象，从而评估设计和运行条件。初步进行了气液固三相反应流模拟，以捕获气化炉内熔渣的流动行为。结果表明，三相模拟可以深入了解气化炉内发生的复杂多相和多物理现象，从而评估设计和运行条件。初步进行了气液固三相反应流模拟，以捕获气化炉内熔渣的流动行为。结果表明，三相模拟可以深入了解气化炉内发生的复杂多相和多物理现象，从而评估设计和运行条件。