管道中CaO颗粒吸收CO2的格子Boltzmann方法模拟
Lattice Boltzmann Simulation on Carbonation of CaO with CO2
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摘要: 采用格子Boltzmann方法对多孔CaO颗粒与CO2之间的气固反应过程进行模拟.主要研究在二维矩形截面管道中雷诺数(Re)和孔隙率对单个CaO颗粒吸收CO2效率的影响.结果表明:增大Re会相应提高CaO颗粒吸收CO2气体的效率.同时对于同一Re,CaO颗粒吸收CO2气体的效率随其孔隙率呈非线性变化,这是由于不同孔隙率颗粒固体量和渗透率存在差别因而影响化学反应的速率.Abstract: We study carbonation process of CaO with lattice Boltzmann method. Specifically,effects of porosities of CaO particles on carbonation rate are investigated. It shows that efficiency depends on porosity nonlinearly due to competition between molar mass and permeability of particles.
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