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《Journal of Tongji University(Natural Science)》 1989-01
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An Influence of RDF Properties on Carbonization and Gasification

Wu Jiazheng Wen Wang Wang Baosheng Chen Chunqian College of Mechanical Engineering  
In a batch fixed bed gasifying reactor(φ40×750)made of stainless steel, the gasification behavior of refuse derived fuel(RDF)is investigated. The results show that the properties and components of RDF affect the carboniza-tion and gasification. When the RDF is used as a kind of gasification feedstock, its reactivity is somewhat higher than that of the coal in the same condition of reaction temperature. Experiments show that the gas calorific value approaches 9.62~10.04 MJ/m~3(2300~2400kcal/m~3)at the stage of carbonization and 3.35~4.18 MJ/m~3(800~1000 kcal/m~3)at the stage of gasification. Ash, fixed carbon and volatile matter contents in RDF also influence the process of carbonization and gasification. If mixing the gas from carbonization and gasification stage using steam-air as gasifying agent at temperature 900℃, a higher BTU gasly with calorific value 4.60~5.65 MJ/m~3(1100~1350kcal/m~3)can be obtained, but the gas yield seems to be less than 1.5m~3/kg.
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