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Experimental study on pyrolysis process of sewage sludge and its gas producing characteristics
Author(s): GAO Biao, WEI Lian, LONG Lin
Pages: 40-
43
Year: 2007
Issue:
2
Journal: RECYCLING RESEARCH
Keyword: 污水污泥; 热重分析; 热解; 热解终温;
Abstract: 采用热失重分析的方法研究南昌市污水处理厂的两种污泥的热解,得到了两种污水污泥的TG-DTG曲线;采用电阻炉对污水污泥进行热解产气实验.实验结果显示,污水污泥热解主要分为三个阶段:水分析出阶段、挥发分析出阶段和无机物分解阶段.热解气体的成分有CO2、CO、H2、CH4、C2H4和C2H6,低温时主要成分是CO2,随着实验中热解温度的升高CO2的含量减少,而H2和CO的含量上升.
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