甲烷化固定床反应器及催化剂数值模拟研究进展

Research Progress in Numerical Simulation of Methanation Fixed Bed Reactor and Catalyst

对固定床在甲烷化数值模拟方面的研究进展进行了综合评述。比较了固定床反应器中一维、二维和三维模拟方法差异。一维和二维模拟计算量小,可用于优化甲烷化工艺。三维模拟更接近真实反应器,计算结果与实验结果的误差更小,更有利于反应器的结构优化。关注甲烷化固定床反应器传热研究,探索模拟关键点。描述了甲烷化反应器数值模拟中所使用的催化剂模型的发展,三维催化剂模型模拟能准确预测出催化剂内部反应的细节,更适合研究不同形状的催化剂对甲烷化反应的影响。推断出今后甲烷化反应器数值模拟的重点和研究方向。

The research progress of numerical simulation of methanation in fixed bed was reviewed.The differences of onedimensional,two-dimensional and three-dimensional simulation methods in fixed-bed reactor were compared.The one-and twodimensional simulation can be used to optimize the methanation process.The 3D simulation is closer to the real reactor,and the error between the calculated results and the experimental results is smaller,which is more conducive to the optimization of the reactor structure.The heat transfer research of methanation fixed bed reactor and the key points of simulation were explored.The development of catalyst models used in the numerical simulation of methanation reactor was described.The 3D catalyst model simulation can accurately predict the details of the reaction inside the catalyst,which is more suitable for the study on the influence of different shapes of catalysts on methanation reaction.The future emphases and research directions of numerical simulation of methanation reactor were deduced.