Experimental Study on Ultra-low NOx Emission From Pyrolytic Wastewater Combined With Semi-coke Incineration

被引：0
|
作者：
Yang X. [1 ,2 ]
Song G. [1 ]
Yang Z. [1 ]
Xiao Y. [1 ,2 ]
Wang C. [1 ]
Ji Z. [1 ,2 ]
机构：
[1] Institute of Engineering Thermophysics, Chinese Academy of Sciences, Haidian District, Beijing
[2] University of Chinese Academy of Sciences, Shijingshan District, Beijing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2023年 / 43卷 / 08期
关键词：
circulating fluidized bed (CFB); NO[!sub]x[!/sub; post-combustion; pyrolytic wastewater; semi-coke;
D O I：
10.13334/j.0258-8013.pcsee.220424
中图分类号：
学科分类号：
摘要：
Pyrolytic wastewater which has complex components is difficult to degrade, and the process of conventional treatment methods is complex and the treatment capacity is limited. Therefore, this paper explores the clean and efficient combustion technology of pyrolytic wastewater with semi-coke. Experiments are carried out in 0.5MW circulating fluidized bed (CFB) test platform; the influence of the addition of pyrolytic wastewater on semi-coke combustion and NOx emission characteristics are explored. The results show that: in conventional combustion conditions, the original NOx emission concentration is 6.7 mg/m3, which decreases by 93.2% when 20L/h pyrolytic wastewater is injected into the post-combustion chamber. In post-combustion conditions, the original NOx emission concentrations are 85.7mg/m3 and 50.0mg/m3, which increase by 12.5% and 34.1% when 20L/h pyrolytic wastewater is injected into the furnace and post-combustion chamber, respectively. The injection location of wastewater can be integrated with reaction temperature, atmosphere, mixing uniformity and other factors. By optimizing the injection location, the collaborative treatment technology of pyrolytic wastewater and semi-coke can control NOx emission while removing volatile phenols in pyrolytic wastewater. © 2023 Chinese Society for Electrical Engineering. All rights reserved.
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页码：3083 / 3091
页数：8
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