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Experimental study on co-firing of coal and refused derived fuel
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Hainan WEN1, 2, Xiangyu ZHANG1, Wen LIU3, Zhaoyao MA1, 2, Zhihua DU1, Shiming XU2
Thermal Power Generation | 2025, 54(8) : 168 - 174
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Thermal Power Generation | 2025, 54(8): 168-174
• Carbon neutral fuel coupled combustion and emission control •
Experimental study on co-firing of coal and refused derived fuel
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Hainan WEN1, 2, Xiangyu ZHANG1, Wen LIU3, Zhaoyao MA1, 2, Zhihua DU1, Shiming XU2
Affiliations
  • 1.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
  • 2.School of Low-Carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
  • 3.Huaneng (Tianjin) Coal Gasification Power Generation Co., Ltd., Tianjin 300457, China
Published: 2025-08-25 doi: 10.19666/j.rlfd.202409221
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The use of large-scale coal-fired power units mixed with refused derived fuel (RDF) can reduce carbon emissions and solve the problem of waste management. To verify the feasibility of co-firing RDF in coal-fired boilers, initial tests were conducted using a one-dimensional furnace to determine the maximum allowable proportion of RDF. Then, pilot-scale tests were carried out on a 4 MW boiler to study the effect of RDF co-firing on coal grinding, combustion, pollutant emissions, and slagging and fouling. The results showed that, when the co-firing ratio of RDF was less than 10% (mass ratio), the mass concentration of dioxins in the flue gas, and dioxins and heavy metals in the ash residue were all below the pollutant control standards. When 10% of RDF was co-grounded with coal in a medium speed mill, the fineness of R90 increased to 27.2%. When the coal and RDF were mixed and co-fired, the flame temperature and NOx formation concentration decreased, the slagging in the combustion air zone increased, while the horizontal flue fouling changes were relatively minor, and the combustible content in the bottom slag increased to about 15%. The research will provide reference for co-firing RDF in coal-fired boilers.

coal-fired boiler  /  refuse derived fuel  /  dioxins  /  heavy metal  /  slagging
Hainan WEN, Xiangyu ZHANG, Wen LIU, Zhaoyao MA, Zhihua DU, Shiming XU. Experimental study on co-firing of coal and refused derived fuel[J]. Thermal Power Generation, 2025 , 54 (8) : 168 -174 . DOI: 10.19666/j.rlfd.202409221
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  • Science and Technology Project of China Huaneng Group Co., Ltd.(HNKJ24-H105)
Appendix
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Year 2025 volume 54 Issue 8
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Article Info
doi: 10.19666/j.rlfd.202409221
  • Online Date：2026-03-05
  • Published：2025-08-25
Article Data
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History
  • Revised：2024-12-23
Funding
Science and Technology Project of China Huaneng Group Co., Ltd.(HNKJ24-H105)
Affiliations
    1.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
    2.School of Low-Carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
    3.Huaneng (Tianjin) Coal Gasification Power Generation Co., Ltd., Tianjin 300457, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202409221
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红菇属 Russula 17 8.13
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