微通道内甲醇重整反应的LB方法

利用格子Boltzmann方法对微通道内甲醇水蒸汽重整制氢反应过程进行模拟,建立了双速率动力学平行反应机理的格子演化模型。分析了边界温度和进口流速的变化对甲醇转化率,氢气和一氧化碳的出口含量以及通道中的最大温差的影响。当边界温度和进口速度一定时,分析了整个反应过程中各组分的变化情况。结果表明,在水醇比,边界温度以及进口速度分别为1.3、523 K、0.1 m/s的情况下:甲醇出口转化率最高达94.36%;氢气的含量为0.0989;CO的含量为0.0095%。发现随边界温度升高,进口流速的减小,CO的含量会进一步增加。

Simulation of methanol steam reforming in micro channel with lattice Boltzmann method

Lattice Boltzmann method is used to simulate the methanol steam reforming process in a micro channel.Lattice evolution model with dual-rate kinetic parallel reaction mechanism is established.The impacts of boundary temperature,inlet velocity on reaction outlet parameters,such as methanol conversion rate,outlet concentrations of hydrogen and carbon monoxide and maximum temperature difference,are studied.It is found that under a certain boundary temperature and inlet velocity,when the methanol molar ratio,bou...