厨余垃圾燃烧特性研究
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摘要
厨余垃圾(干基)热值较高,采用热处理可对其同时实现无害化和资源化。以热重分析为切入点,探讨了不同升温速率条件下厨余垃圾的燃烧特性,其热重曲线反应了主要的失重阶段,分别是液化脱挥发分(242～335℃);稳定的环状有机物裂解和碳化(390～568℃)。另外,其分段燃烧模型表明,厨余垃圾的燃烧反应可用连续的一级反应拟合(R~2:0. 889～0. 977)。
The kitchen waste( dry basis) has a high calorific value,and the heat treatment can simultaneously achieve harmlessness and resource utilization. Taking thermogravimetric analysis( TGA) as the starting point,this paper explored the combustion characteristics of kitchen waste under different heating rates. The TG curves reflected the main stages of weight loss,which are a) devolatilization of hemicellulose fractions( from 242 to 335℃); and b) decomposition and carbonization of stable cyclic organics( from 390 to 568℃). Furthermore,the segmented combustion kinetic model indicated that the combustion reaction of the kitchen waste can be simulated by continuous first order reactions( R~2: 0. 889-0. 977).
The kitchen waste( dry basis) has a high calorific value,and the heat treatment can simultaneously achieve harmlessness and resource utilization. Taking thermogravimetric analysis( TGA) as the starting point,this paper explored the combustion characteristics of kitchen waste under different heating rates. The TG curves reflected the main stages of weight loss,which are a) devolatilization of hemicellulose fractions( from 242 to 335℃); and b) decomposition and carbonization of stable cyclic organics( from 390 to 568℃). Furthermore,the segmented combustion kinetic model indicated that the combustion reaction of the kitchen waste can be simulated by continuous first order reactions( R~2: 0. 889-0. 977).
引文
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[19]赵学.生活垃圾协同污泥制备衍生燃料(RDF-5)及其热力特性研究[D].重庆:重庆大学,2017.
[20] Hou,S.-S.,M.-C. Chen,and T.-H. Lin,Experimental study of the combustion characteristics of densified refuse derived fuel(RDF-5)produced from oil sludge[J]. Fuel,2014,116:201-207.
[21]朱锡峰.生物质热解原理与技术[M].合肥:中国科学技术大学出版社,2006.
[22]李永华.燃烧理论与技术[M].北京:中国电力出版社,2011.
[2]杜龙龙,袁京,李国学,等.通风速率对厨余垃圾堆肥NH3和H2S排放及腐熟度影响[J].中国环境科学,2015,35(12):3714-3720.
[3]杨朝晖,刘有胜,曾光明,等.厨余垃圾高温堆肥中嗜热菌种群结构分析[J].中国环境科学,2007,27(6):733-737.
[4]张焕芬,喜文华.日本垃圾衍生燃料(RDF)的研究开发[J].甘肃科学学报,1999,11(3):66-72.
[5]徐昕.城市生活垃圾制备衍生燃料(RDF)工艺实验研究[D].杭州:浙江工业大学,2010.
[6] Wang,L. a.,Hu,G.,Gong,X.,Bao,L. Emission reductions potential for energy from municipal solid waste incineration in Chongqing[J]. Renewable Energy,2009. 34,2074-2079.
[7]赵学,王里奥,刘元元,等.生活垃圾制备衍生燃料(RDF-5)——以重庆市为例[J].环境科学学报,2016,36(7):2557-2062.
[8] HJ 549-2009.环境空气和废气氯化氢的测定离子色谱法[S].
[9] GB/T212-2008.煤的工业分析方法[S].
[10] Gábor Várhegyi. Aims and mothods in non-isothermal reaction kinetics[J]. Journal of Analytical and Applied Pyrolysis,2007,79:278-288.
[11]李洋洋,金宜英,聂永丰.污泥与煤混烧动力学及常规污染物排放分析[J].中国环境科学,2014,34(3):604-609.
[12] Grammelis P,Basinas P,Malliopoulou A,Sakellaropoulos G.Pyrolysis kinetics and combustion characteristics of waste recovered fuels[J]. Fuel,2009,88:195-205.
[13] Y. Tang,X. Ma,Z. Lai,Y. Fan,. Thermogravimetric analyses of co-combustion of plastic,rubber,leather in N2/O2and CO2/O2atmospheres[J]. Energy,2015,90:1066-1074.
[14] Liu,H.,Study on combustion and pyrolysis characteristics of food waste[D]. 2014,South China University of Technology:2014.
[15] Binlin Dou,Sanguk Park,Sungjin Lim,Tae-U Yu,Jungho Hwang. Pyrolysis Characteristics of Refuse Derived Fuel in a Pilot-Scale Unit[J]. Energy&Fuels,2007,21:3730-3734.
[16] A. Skreiberg,. Skreiberg,J. Sandquist,L. Srum. TGA and macro-TGA characterisation of biomass fuels and fuel mixtures[J]. Fuel,2011,90:2182-2197.
[17] Coats A W. and J. P. Redfern,Kinetic parameters from thermogravimetric data[J]. Nature,1964,201:68-69.
[18] Skreiberg A,et al.,TGA and macro-TGA characterisation of biomass fuels and fuel mixtures. Fuel,2011,90(6):2182-2197.
[19]赵学.生活垃圾协同污泥制备衍生燃料(RDF-5)及其热力特性研究[D].重庆:重庆大学,2017.
[20] Hou,S.-S.,M.-C. Chen,and T.-H. Lin,Experimental study of the combustion characteristics of densified refuse derived fuel(RDF-5)produced from oil sludge[J]. Fuel,2014,116:201-207.
[21]朱锡峰.生物质热解原理与技术[M].合肥:中国科学技术大学出版社,2006.
[22]李永华.燃烧理论与技术[M].北京:中国电力出版社,2011.
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