A novel design for a three-channel internal-recirculation type reactor is described. The reactor has an extremely compact design that consists of inlet and outlet channels filled with an inert structured packing on either side of a reactor channel containing a catalytic washcoated monolith. The reactor stream flows in counter current flow with the flow in the inlet and the outlet channels. The reaction studied is the catalytic combustion of lean dry methane at low feed temperature. Autogenous operation can be obtained over a reasonable set of operating conditions, which makes the unit potential suitable for the destruction of fugitive emissions from an underground coal mine and other spatially restricted environments.

描述了一种三通道内部循环型反应器的新颖设计。该反应器具有极其紧凑的设计，该反应器的入口和出口通道在装有催化活化涂层整料的反应器通道的两侧填充有惰性结构填料。反应器物流与进口和出口通道中的气流成逆流流动。所研究的反应是在低进料温度下催化燃烧稀干甲烷。可以在合理的一组运行条件下获得自发运行，这使得该单元的电势适合于销毁地下煤矿和其他受空间限制的环境中的逃逸性排放物。