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Gasification of a Dried Sewage Sludge in a Laboratory Scale Fixed Bed Reactor

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  • Sebastian Werle

    (Institute of Thermal Technology, Silesian University of Technology, Konarskiego 22, 44100 Gliwice, Poland)

Abstract

This paper presents an investigation of sewage sludge gasification in a fixed bed gasifier. Experiments were conducted on a laboratory scale fixed bed gasifier. In the experiments, two types of dried sewage sludge were tested and their properties were analysed. Parameters such as air ratio λ = 0.12 to 0.27, gasification agent temperature t = 50 to 250 °C and gasification agent composition ( = 0.21 and > 0.21) were found to influence on temperature distribution, syngas Lower Heating Value (LHV) and syngas composition. The results indicate that the syngas LHV was found to decrease with increased air ratio for all analyzed cases: cold and preheated air and cold enriched air. The increase in the percentage of the main combustible components was accompanied by a decrease in the concentration of carbon dioxide. Increasing oxygen concentration increased the temperature, which tended to favor the formation of smaller molecules in the gas mixture. Thus, the enriched air medium produced a gas with a higher LHV. In contrast to conventional gasification, gasification process with gasification agent preheating causes that the flux of heat necessary to support endothermic gasification reactions is producing more effective. Air preheating causes increases hydrogen and carbon monoxide production.

Suggested Citation

  • Sebastian Werle, 2015. "Gasification of a Dried Sewage Sludge in a Laboratory Scale Fixed Bed Reactor," Energies, MDPI, vol. 8(8), pages 1-11, August.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:8:p:8562-8572:d:54065
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    Citations

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    Cited by:

    1. Silvia Román Suero & Beatriz Ledesma & Andrés Álvarez-Murillo & Awf Al-Kassir & Talal Yusaf, 2015. "Glycerin, a Biodiesel By-Product with Potentiality to Produce Hydrogen by Steam Gasification," Energies, MDPI, vol. 8(11), pages 1-11, November.
    2. Čespiva, Jakub & Wnukowski, Mateusz & Niedzwiecki, Lukasz & Skřínský, Jan & Vereš, Ján & Ochodek, Tadeáš & Pawlak-Kruczek, Halina & Borovec, Karel, 2020. "Characterization of tars from a novel, pilot scale, biomass gasifier working under low equivalence ratio regime," Renewable Energy, Elsevier, vol. 159(C), pages 775-785.
    3. Wilhelm Jan Tic & Joanna Guziałowska-Tic & Halina Pawlak-Kruczek & Eugeniusz Woźnikowski & Adam Zadorożny & Łukasz Niedźwiecki & Mateusz Wnukowski & Krystian Krochmalny & Michał Czerep & Michał Ostryc, 2018. "Novel Concept of an Installation for Sustainable Thermal Utilization of Sewage Sludge," Energies, MDPI, vol. 11(4), pages 1-17, March.
    4. Simona Di Fraia & M. Rakib Uddin, 2022. "Energy Recovery from Waste Paper and Deinking Sludge to Support the Demand of the Paper Industry: A Numerical Analysis," Sustainability, MDPI, vol. 14(8), pages 1-18, April.
    5. Hao Luo & Lukasz Niedzwiecki & Amit Arora & Krzysztof Mościcki & Halina Pawlak-Kruczek & Krystian Krochmalny & Marcin Baranowski & Mayank Tiwari & Anshul Sharma & Tanuj Sharma & Zhimin Lu, 2020. "Influence of Torrefaction and Pelletizing of Sawdust on the Design Parameters of a Fixed Bed Gasifier," Energies, MDPI, vol. 13(11), pages 1-19, June.
    6. Sanaye, Sepehr & Alizadeh, Pouria & Yazdani, Mohsen, 2022. "Thermo-economic analysis of syngas production from wet digested sewage sludge by gasification process," Renewable Energy, Elsevier, vol. 190(C), pages 524-539.
    7. Choi, Oh Kyung & Park, Jo Yong & Kim, Jae-Kon & Lee, Jae Woo, 2019. "Bench-scale production of sewage sludge derived-biodiesel (SSD-BD) and upgrade of its quality," Renewable Energy, Elsevier, vol. 141(C), pages 914-921.
    8. Alberto Carotenuto & Simona Di Fraia & Nicola Massarotti & Szymon Sobek & M. Rakib Uddin & Laura Vanoli & Sebastian Werle, 2023. "Sewage Sludge Gasification Process Optimization for Combined Heat and Power Generation," Energies, MDPI, vol. 16(12), pages 1-22, June.
    9. Carotenuto, Alberto & Di Fraia, Simona & Massarotti, Nicola & Sobek, Szymon & Uddin, M. Rakib & Vanoli, Laura & Werle, Sebastian, 2023. "Predictive modeling for energy recovery from sewage sludge gasification," Energy, Elsevier, vol. 263(PB).
    10. Tańczuk, M. & Junga, R. & Werle, S. & Chabiński, M. & Ziółkowski, Ł., 2019. "Experimental analysis of the fixed bed gasification process of the mixtures of the chicken manure with biomass," Renewable Energy, Elsevier, vol. 136(C), pages 1055-1063.
    11. Vishwajeet & Halina Pawlak-Kruczek & Marcin Baranowski & Michał Czerep & Artur Chorążyczewski & Krystian Krochmalny & Michał Ostrycharczyk & Paweł Ziółkowski & Paweł Madejski & Tadeusz Mączka & Amit A, 2022. "Entrained Flow Plasma Gasification of Sewage Sludge–Proof-of-Concept and Fate of Inorganics," Energies, MDPI, vol. 15(5), pages 1-14, March.
    12. Jumoke Oladejo & Kaiqi Shi & Xiang Luo & Gang Yang & Tao Wu, 2018. "A Review of Sludge-to-Energy Recovery Methods," Energies, MDPI, vol. 12(1), pages 1-38, December.

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