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Simulation of the influence of flue gas cleaning system on the energetic efficiency of a waste-to-energy plant

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  • Grieco, E.
  • Poggio, A.

Abstract

Municipal solid waste incinerators are designed to enhance the electrical efficiency obtained by the plant as much as possible. For this reason strong integration between the flue gas cleaning system and the heat recovery system is required. To provide higher electrical efficiencies acid gas neutralization process has the major importance in flue gas cleaning system. At least four technologies are usually applied for acid gas removal: dry neutralization with Ca(OH)2 or with NaHCO3, semi-dry neutralization with milk of lime and wet scrubbing. Nowadays, wet scrubbers are rarely used as a result of the large amount of liquid effluents produced; wet scrubbing technology is often applied as a final treatment after a dry neutralization. Operating conditions of the plant were simulated by using Aspen Plus in order to investigate the influences of four different technologies on the electrical efficiency of the plant. The results of the simulations did not show a great influence of the gas cleaning system on the net electrical efficiency, as the difference between the most advantageous technology (neutralization with NaHCO3) and the worst one, is about 1%.

Suggested Citation

  • Grieco, E. & Poggio, A., 2009. "Simulation of the influence of flue gas cleaning system on the energetic efficiency of a waste-to-energy plant," Applied Energy, Elsevier, vol. 86(9), pages 1517-1523, September.
    • Handle: RePEc:eee:appene:v:86:y:2009:i:9:p:1517-1523
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    Citations

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    Cited by:

    1. Chae, Song Hwa & Kim, Sang Hun & Yoon, Sung-Geun & Park, Sunwon, 2010. "Optimization of a waste heat utilization network in an eco-industrial park," Applied Energy, Elsevier, vol. 87(6), pages 1978-1988, June.
    2. Kalisz, Sylwester & Wejkowski, Robert & Maj, Izabella & Garbacz, Przemysław, 2023. "A novel approach to the dry desulfurization process by means of sodium bicarbonate: A full-scale study on SO2 emission and geochemistry of fly ash," Energy, Elsevier, vol. 279(C).
    3. Sun, Zhongwei & Wang, Shengwei & Zhou, Qulan & Hui, Shi'en, 2010. "Experimental study on desulfurization efficiency and gas-liquid mass transfer in a new liquid-screen desulfurization system," Applied Energy, Elsevier, vol. 87(5), pages 1505-1512, May.
    4. Di Maria, Francesco & Sisani, Federico & Contini, Stefano, 2018. "Are EU waste-to-energy technologies effective for exploiting the energy in bio-waste?," Applied Energy, Elsevier, vol. 230(C), pages 1557-1572.
    5. Tabasová, Andrea & Kropáč, Jiří & Kermes, Vít & Nemet, Andreja & Stehlík, Petr, 2012. "Waste-to-energy technologies: Impact on environment," Energy, Elsevier, vol. 44(1), pages 146-155.
    6. Dong, Jun & Jeswani, Harish Kumar & Nzihou, Ange & Azapagic, Adisa, 2020. "The environmental cost of recovering energy from municipal solid waste," Applied Energy, Elsevier, vol. 267(C).

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