Propagation characteristics of flame front and the combustion characteristics of start-up conditions in the porous media reactor filled by alumina pellets and ceramic foam was obtained though the experiments of methane/ air premixed gas combustion in porous media reactor. 基于多孔介质反应器中甲烷/空气预混气体燃烧实验,揭示了多孔介质内的火焰前沿传播特性和氧化铝小球和泡沫陶瓷反应器中启动工况中的燃烧特性。