Abstract: Oxygen-enriched gasification technology and equipment for straw gasifying were exploited.The effects of catalysts,such as CaO,NaOH,gas velocity and pressure difference of gasifier on the heat value of gas were studied at gasifying temperature 600～82℃.The hydrocarbon content of the gas produced by straw gasified with catalyst CaO is as high as 4.81%.The security and stability of the inner recycling cone fluidized bed gasifier during the process of straw gasification were tested.The results show that the gasifier and technology for straw gasification are safe and stable and the gas produced has higher heat value and contains less tars.

Key words: fluidized-bed gasifier, oxygen-enriched air, catalyst, straw