天津科技大学学报2012，Vol.27Issue(1)：44-47,4.
天津市政污泥热解及燃烧动力学特性的分析
Analysis of Pyrolysis and Combustion Kinetics Characteristics of Tianjin Municipal Sewage Sludge
吴龙 1吴中华 1李占勇 1张晶1
作者信息
- 1. 天津科技大学机械工程学院,天津300222
- 折叠
摘要
Abstract
In order to study the pyrolysis and combustion kinetics of Tianjin sewage sludge, thermal analysis of Thermogra-vimetry (TG), Differential Thermogravimetric (DTG) and Differential Scanning Calorimetry (DSC) were conducted with a thermal gravimetric analyzer in both nitrogen and air atmosphere. Experimental results show that the whole combustion process of sewage sludge could be divided into four stages: water evaporation,evaporation and sequential combustion of sludge volatiles, combustion of organic matter and fixed carbon, and the thermal decomposition of residues. Ignition temperature of the sludge samples was observed to be 277.5 ℃ and the temperature for complete burning was 540℃. In this research, the mathematical model was established for the pyrolysis and combustion process of Tianjin sewage sludge and the apparent activation energy E, and pre-exponential factor A were determined in the above main stages and by using the continuity equation fitting method.关键词
燃烧动力学/热解/市政污泥/热分析Key words
combustion kinetics/ pyrolysis/ municipal sewage sludge/ thermal analysis分类
资源环境引用本文复制引用
吴龙,吴中华,李占勇,张晶..天津市政污泥热解及燃烧动力学特性的分析[J].天津科技大学学报,2012,27(1):44-47,4.
