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Mathematical modelling of gasification process of sewage sludge in reactor of negative CO2 emission power plant
Abstract
Sewage sludge is a residue of wastewater processing that is biologically active and consists of water,organic matter, including dead and alive pathogens, as well as organic and inorganic contaminants suchas polycyclic aromatic hydrocarbons (PAHs) and heavy metals. Due to the nature of sewage sludge and itspossible influence on human health and wellbeing, it is a subject of various regulations. Currently,sewage sludge is considered as biomass, according to the new Polish act on renewable energy sources ofFebruary 20, 2015 and its novel version of July 19, 2019. This study presents a novel model, along with acomparison with experimental results. The model could be used for sewage sludge gasification modellingfor accurate assessment of the performance of novel concepts bioenergy with carbon capture and storage(BECCS) installations, using sewage sludge as a fuel. The composition of the dry produced gas, deter-mined experimentally, yields: XCO¼0.093, XCO2¼0.264, XCH4¼0.139, XCxHy¼0.035, and XH2¼0.468.Performed modifications to the original Deringer-with-Gumz-modification gasification model allowed toobtain good agreement with the experimental results, reaching XCO¼0.071, XCO2¼0.243, XCH4¼0.139,XC3H8¼0.035, and XH2¼0.512. The main novelty in the formulas of the internal model was due topropane inclusion, which was not found in the literature before. Additionally, sulphur dioxide wasapplied in exchange for other sulphur components presented in the original model. Equilibrium con-stants were adjusted to suit the experimental model. For ease of calculation, the own code was used toiterate multiple temperatures. Included was the energy balance equation that is essential for verification
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Authors (10)
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Janusz Badur prof.
- nstitute of Fluid Flow Machinery, Polish Academy of Sciences
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Halina Pawlak-kruczek prof.
- Wrocław University of Science and Technology
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Lukasz Niedzwiecki
- Wrocław University of Science and Technology
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Krystian Krochmalny mgr
- Wrocław University of Science and Technology
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Jakub Mularski
- Wrocław University of Science and Technology
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Paweł Madejski
- AGH University of Science and Technolog
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.energy.2021.122601
- License
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ENERGY
no. 244,
ISSN: 0360-5442 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Ziółkowski P., Badur J., Pawlak-Kruczek H., Stasiak K., Amiri M., Niedzwiecki L., Krochmalny K., Mularski J., Madejski P., Mikielewicz D.: Mathematical modelling of gasification process of sewage sludge in reactor of negative CO2 emission power plant// ENERGY -Vol. 244,iss. Part A (2022), s.122601-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.energy.2021.122601
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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