Citation: LI Xiao-yun, ZHAO Rui-dong, QIN Jian-guang, WU Jin-hu. Co-combustion characteristics of municipal solid waste with coal gangue and its HCl emission[J]. Journal of Fuel Chemistry and Technology, ;2016, 44(11): 1304-1309. shu

Co-combustion characteristics of municipal solid waste with coal gangue and its HCl emission

1.
Key Laboratory of Biofuel, Chinese Academy of Sciences Qingdao Institute of Bioenergy and Bioprocess Technology, Qingdao 266101, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: WU Jin-hu, zrd_gscas@126.com
Received Date: 28 April 2016
Revised Date: 24 June 2016

Fund Project: The project was supported by the National Natural Science Foundation of China 51506212Shanxi Province Coal-based Key Technology Research and Development Program MD2014-03

Figures(5)

Co-firing of municipal RDF and coal gangue in existing coal gangue power station is a potential treatment way of municipal solid waste and coal gangue. The co-combustion characteristic of municipal solid waste (MSW) and coal gangue was investigated by thermogravimetric analyzer. The HCl emission in co-combustion of coal gangue with PVC, NaCl and MSW were also studied using a high-temperature tube furnace combustion system. The results show that the combustion characteristic of coal gangue can be improved obviously with blending of MSW, especially for devolatilization and ignition characteristics. In consideration of combustion characteristics, the MSW blending ratio of 20% is suggested. When the blending ratio of PVC or NaCl is low, the existence of coal gangue can inhibit the release of HCl in PVC while promote the release of HCl in NaCl. As the increase of blending ratio, the effect decreases gradually. In co-combustion of MSW and coal gangue, the release ratio and concentration of HCl is increased. When the MSW blending ratio is 10%, the HCl emission concentration is 56.22 mg/m³ which exceeds the national standard. Hence, the dechlorination measurement should be considered.
- municipal solid waste,
- coal gangue,
- co-combustion,
- hydrogen chloride,
- chlorine source
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沈阳化工大学材料科学与工程学院沈阳 110142