近年来,对中小城市煤气化的途径问题已引起我国各界的重视。天然气、液化石油气、焦炉气等气源固应积极争取,但无上述气源时,只有自建气源厂。以煤为制气原料,气化方式很多,据称采用两段完全气化炉具有热效率高、气化煤种范围较宽、污染少、运转灵活, In recent years, the issue of coal gasification pathways in small and medium-sized cities has drawn attention from all walks of life in China. Natural gas, liquefied petroleum gas, coke oven gas, and other gas sources should be actively pursued, but when there is no such gas source, only the gas source plant will be built. Coal is used as a raw material for gas production, and there are many gasification methods. It is said that the use of a two-stage complete gasifier has high thermal efficiency, a wide range of gasification coal types, less pollution, and flexible operation.