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<p>Municipal solid waste (MSW) features complex composition and a high proportion of combustible materials. Through waste classification and collection, its primary components can be processed into refuse-derived fuel (RDF) to replace fossil fuels in industrial kilns, or serve as an auxiliary fuel to improve the combustion stability of waste-to-energy incineration boilers. In this paper, the influence of RDF component composition, particle size, moisture content, additives, and forming process parameters on its physical properties were systematically investigated. Experimental research and kinetic analysis were conducted to elucidate the combustion characteristics and pollutant emission patterns of RDF. Key findings showed that paper-rich RDF held the optimal durability and moderate moisture content was crucial for balancing molding effectiveness and maintaining RDF calorific value. Although smaller particle sizes and higher forming pressure were beneficial for RDF molding, moderate values should be adopted when comprehensively considering the corresponding energy consumption efficiency. Thermochemical analysis revealed that an elevated plastic content in RDF significantly enhanced the calorific value and combustion performance index, but concurrently resulted in higher activation energy and ignition temperature, exacerbating SO₂ emissions and promoting the volatilization of heavy metals during combustion. An estimation and analysis of the economic benefits of its commercial applications were conducted.</p>

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Resourceful utilization of municipal solid waste: exploring RDF preparation and combustion optimization

  • 期刊论文

  • 发表日期：

    2025年11月8日

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  • Xuanyu Ji,
  • Wanwei Zhou,
  • Qinghui Yu,
  • Hanyu Liu,
  • Xiong Zhou,
  • Lin Chen,
  • Yu Yang,
  • Lu Yang,
  • Junting Chen

摘要

Municipal solid waste (MSW) features complex composition and a high proportion of combustible materials. Through waste classification and collection, its primary components can be processed into refuse-derived fuel (RDF) to replace fossil fuels in industrial kilns, or serve as an auxiliary fuel to improve the combustion stability of waste-to-energy incineration boilers. In this paper, the influence of RDF component composition, particle size, moisture content, additives, and forming process parameters on its physical properties were systematically investigated. Experimental research and kinetic analysis were conducted to elucidate the combustion characteristics and pollutant emission patterns of RDF. Key findings showed that paper-rich RDF held the optimal durability and moderate moisture content was crucial for balancing molding effectiveness and maintaining RDF calorific value. Although smaller particle sizes and higher forming pressure were beneficial for RDF molding, moderate values should be adopted when comprehensively considering the corresponding energy consumption efficiency. Thermochemical analysis revealed that an elevated plastic content in RDF significantly enhanced the calorific value and combustion performance index, but concurrently resulted in higher activation energy and ignition temperature, exacerbating SO₂ emissions and promoting the volatilization of heavy metals during combustion. An estimation and analysis of the economic benefits of its commercial applications were conducted.