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Fate of phosphorus ...
Fate of phosphorus in pulverized fuel co-combustion of sewage sludge and agricultural residues
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- Häggström, Gustav (författare)
- Luleå tekniska universitet,Energivetenskap,Swerim AB, Box 812, SE-971 25, Luleå, Sweden
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- Hannl, Thomas Karl, M.Sc. 1993- (författare)
- Luleå tekniska universitet,Energivetenskap
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- Holmgren, Per (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Thermochemical Energy Conversion Laboratory, Department of Applied Physics and Electronics, Umeå University
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- Broström, Markus (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Thermochemical Energy Conversion Laboratory (TEC-Lab),Thermochemical Energy Conversion Laboratory, Department of Applied Physics and Electronics, Umeå University
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- Skoglund, Nils (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Thermochemical Energy Conversion Laboratory (TEC-Lab),Thermochemical Energy Conversion Laboratory, Department of Applied Physics and Electronics, Umeå University
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- Öhman, Marcus, 1969- (författare)
- Luleå tekniska universitet,Energivetenskap
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(creator_code:org_t)
- Elsevier, 2023
- 2023
- Engelska.
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Ingår i: Fuel. - : Elsevier. - 0016-2361 .- 1873-7153. ; 335
- Relaterad länk:
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https://doi.org/10.1...
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https://ltu.diva-por... (primary) (Raw object)
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The fate of phosphorus concerning its distribution in the thermal process and chemical speciation was studied during the co-combustion of sewage sludge with wheat straw and sunflower husks in powder combustion conditions. Co-combustion experiments were performed in a lab-scale entrained flow reactor (EFR) at 1000 °C and 1400 °C. SEM-EDS and ICP-OES analyses were used for studies of deposits collected on a probe, bottom ash, and particulate matter samples collected during experiments. Deposition probe samples were further studied and interpreted using powder X-ray diffraction (XRD) and thermochemical equilibrium calculations (TECs). The inorganic material in the different fuel particles mainly interacted through a molten phase observed on deposition probes. Crystalline P was mainly identified in β-Ca3(PO4)2 whitlockites. TECs support the experimental findings and suggest that a mostly homogenous melt occurs at 1400 °C, whereas Fe-oxides and Ca-phosphates precipitate during the cooling of the formed deposits. It was found that <5 % of incoming P was collected in fine particulate matter (<1 µm), indicating that the majority of P can be found in deposits and bottom ash. This outcome implies that P recovery efforts should be focused on these ash fractions.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
Nyckelord
- Sewage sludge
- Phosphorus Combustion
- Ash recovery
- Powder combustion
- Suspension firing
- Energiteknik
- Energy Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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