| 市政污水污泥催化热解特性研究 |
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| 引用本文： | 张立国,刘蕾,张秋云,成文,陈翠莹,吴宏海.市政污水污泥催化热解特性研究[J].华南师范大学学报(自然科学版),2011,0(4):94-0. |
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| 作者姓名： | 张立国 刘蕾 张秋云 成文 陈翠莹 吴宏海 |
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| 作者单位： | 1.1.华南师大化学与环境学院 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金 |
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| 摘 要： | 以CaO、ZnCl2、K2CO33种物质作为催化剂,对比热重法(TG)和差热分析法(DSC)研究干化污泥的催化热解过程及其动力学,同时对热解污泥进行了SEM分析.结果表明,与原始污泥样品相比,添加催化剂的污泥在固定碳燃尽阶段热解速率有较大提高.添加催化剂后污泥样品的活化能E和频率因子A都下降,以CaO的催化效果最好.添...
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| 关 键 词： | 污泥 催化热解 动力学 |
| 收稿时间： | 2011-03-08 |
STUDY ON CATALYTIC PYROLYSIS CHARACTERISTICS OF MUNICIPAL SEWAGE SLUDGE |
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| ZHANG Liguo,LIU Lei,ZHANG Qiuyun,CHENG Wen,CHEN Cuiying,WU Honghai.STUDY ON CATALYTIC PYROLYSIS CHARACTERISTICS OF MUNICIPAL SEWAGE SLUDGE[J].Journal of South China Normal University(Natural Science Edition),2011,0(4):94-0. |
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| Authors: | ZHANG Liguo LIU Lei ZHANG Qiuyun CHENG Wen CHEN Cuiying WU Honghai |
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| Abstract: | To investigate the catalytic pyrolysis characteristics of dewatered municipal sewage sludge, the pyrolysis experiments were conducted using CaO, ZnCl2, K2CO3 as catalysts by the methods of thermogravimetry (TG) and Differential scanning calorimeter (DSC). The results showed that the pyrolysis process of dried sewage sludge was divided into three phases: moisture loss, volatile matter loss and fixed carbon loss for all sludge samples. The pyrolysis rate was greatly enhanced during the fixed carbon loss and the activation energy and pre-exponential factor decreased for the sludge sample with addition of catalyst. The catalytic activity of CaO were best among three catalysts. |
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