煤制天然气甲烷化固定床反应器内反应特征参数场分布的数值模拟研究

Numerical Simulation and Analysis on the Distribution of Characteristic Parameters Inside the Methanation Fixed Bed Reactor Based on Ansys-CFX

甲烷化是煤制天然气的关键环节.研究固定床甲烷化反应器中的特征参数场分布,对实现反应器结构优化、确保产率最大化有重要意义.本文以新疆伊犁庆华年产55亿立方煤制天然气固定床甲烷化反应器为对象,借助大型工程分析软件ANSYS-CFX,运用数值模拟计算方法,获得了反应状态下固定床层内温度场、压力场、速度场等关键特征参数的场分布,为甲烷化反应器的结构优化提出合理建议.

Methanation is one of the key steps of SNG. Researching on the distribution of characteristic parameters inside the methanation fixed bed reactor is important to achieve the structural optimization of the reactor and ensure yield maximization. In this paper, to Xinjiang Yili Qinghua 5.5 billion cubic meters SNG per year project, by using Numerical Simulation based on Ansys-CFX, the distribution of characteristic parameters inside the methanation fixed bed reactor such as temperature, pressure, velocity has been found and some suggestion for the structural optimization of methanation reactor has been put forward.