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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (12): 2188-2195    DOI: 10.3785/j.issn.1008-973X.2011.12.018
能源工程     
垃圾和煤混烧流化床焚烧炉的二恶英排放质量平衡
陆胜勇, 吴海龙, 陈彤, 李晓东, 严建华
浙江大学 能源清洁利用国家重点实验室,热能工程研究所,浙江 杭州 310027
Dioxin mass balance in fluidized bed incinerator co-firing
municipal solid waste and coal
LU Sheng-yong, WU Hai-long, CHEN Tong, LI Xiao-dong, YAN Jian-hua
State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang
University, Hangzhou 310027, China
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摘要：

为了研究二恶英的生成与消减情况,引入二恶英质量平衡的方法.建立某垃圾和煤混烧流化床焚烧炉的二恶英输入、输出质量平衡方程式,并在该焚烧炉中开展了多个运行工况条件下的烟气、灰渣中的二恶英质量浓度和质量分数检测试验.研究发现,由于“记忆效应”,掺煤燃烧产生的SO2对二恶英的抑制作用有延迟现象,垃圾和煤混烧能消减原生垃圾中的大部分二恶英,使焚烧系统输出的二恶英毒性质量远小于输入的二恶英毒性质量.还对比了国内外一些垃圾焚烧炉的二恶英排放质量平衡,发现垃圾和煤混烧流化床焚烧炉毒性二恶英的环境年排放量为-495.029～4.524 mg,比国内外报道中的垃圾焚烧炉更低,在一定程度上说明该焚烧炉可从总体上有效减少二恶英排放.
Abstract:

Mass balance investigation was introduced to estimate dioxin formation or elimination during municipal solid waste (MSW) incineration process. A dioxin mass balance equation between input and output was established according to the characteristics of dioxin emission from a fluidized bed incinerator co-firing MSW and coal, and the dioxin mass fraction or mass concentration in flue gas, fly ash, and slag were tested under several operation conditions. Results indicated that the dioxin inhibition phenomenon attributed to SO2 from coal burning was delayed due to “memory effect”; large amout of dioxin was abated when co-firing with MSW and coal, and the output I-TEQ mass value of dioxin was much less than the inputvalue. The dioxin mass balance from the MSW incinerators abroad and domestic was compared, and the results turned out that toxic dioxin annual emissions from the investigated fluidized bed co-firing MSW and coal were bewteen -495.029 mg and 4.524 mg, which were much lower than those from the cited incinerators abroad and domestic. It was revealed to some extend that the dioxin emission could be totally reduced by this kind of incinerator.
出版日期: 2011-12-01
:  TK 229  
基金资助:

国家自然科学基金资助项目（50706043）；国家科技支撑计划资助项目（2007BAC27B04）；浙江省科技计划资助项目（2008C23090）.
作者简介: 陆胜勇（1977—），男，副教授，主要从事固体废弃物焚烧利用及特殊污染物控制研究.E-mail: lushy@zju.edu.cn
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引用本文:

陆胜勇, 吴海龙, 陈彤, 李晓东, 严建华. 垃圾和煤混烧流化床焚烧炉的二恶英排放质量平衡[J]. J4, 2011, 45(12): 2188-2195.

LU Sheng-yong, WU Hai-long, CHEN Tong, LI Xiao-dong, YAN Jian-hua. Dioxin mass balance in fluidized bed incinerator co-firing
municipal solid waste and coal. J4, 2011, 45(12): 2188-2195.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.12.018    或    https://www.zjujournals.com/eng/CN/Y2011/V45/I12/2188

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