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Safety evaluation of sewage-sludge-derived fuels by comparison with other fuels

机译:污水污泥衍生燃料与其他燃料的安全性评估

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摘要

The utility of sewage sludge as a biomass fuel is taken as a new approach to recycle unwanted wastes as renewable energy and deal with global warming. However, safety caring of this new type of fuel is a premise before it is practically used in boilers. Thermal behaviors of four sludge-derived fuels which are under development were examined by several calorimeters (such as thermogravimetry/differential thermal analysis, C80 and thermal activity monitor) at temperature ramp and isothermal conditions. Heat generation at relatively low temperatures was observed. The corresponding spontaneous ignition was detected in an adiabatic spontaneous ignition tester at 80℃ in some sludge species. Moreover, a certain amount of gaseous evolution was accompanied when the sludge fuels were stored at room temperature and at 60℃. Oxidation is mainly responsible for the heat and gas release from the sludge fuels. The hazards of the sewage sludge fuels were also compared with a bituminous coal and a refuse-derived fuel, which have the main feature of spontaneous ignition.
机译:污水污泥作为生物质燃料的效用被视为一种将不需要的废物作为可再生能源进行再循环并应对全球变暖的新方法。但是,在实际将其用于锅炉之前,必须对这种新型燃料进行安全维护。在数个热量计(例如热重分析/差热分析,C80和热活度监测仪)下,在升温和等温条件下,对四种正在开发的污泥燃料的热行为进行了研究。观察到在相对较低的温度下产生热量。在某些污泥中,在80℃的绝热自燃测试仪中检测到相应的自燃。此外,当污泥燃料在室温和60℃下储存时,会伴随一定量的气体逸出。氧化主要负责污泥燃料释放的热量和气体。还比较了污水污泥燃料的危害性,烟煤和垃圾衍生燃料的危害,这些煤具有自燃的主要特征。

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  • 来源
    《消防硏究所報告》 |2010年第108期|P.49-62|共14页
  • 作者单位

    National Research Institute of Fire and Disaster, 4-35-3, Jindaijihigashi-machi, Chofu, Tokyo 182-8508, Japan;

    rnNational Research Institute of Fire and Disaster, 4-35-3, Jindaijihigashi-machi, Chofu, Tokyp 182-8508, Japan;

    rnNational Research Institute of Fire and Disaster, 4-35-3, Jindaijihigashi-machi, Chofu, Tokyp 182-8508, Japan;

    rnNational Research Institute of Fire and Disaster, 4-35-3, Jindaijihigashi-machi, Chofu, Tokyp 182-8508, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biomass fuel; self-heating; sewage sludge; thermal activity; gas evolution;

    机译:生物质燃料自热污水污泥;热活动气体逸出;

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