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Fate of lead, coppe...
Fate of lead, copper, zinc and antimony during chemical looping gasification of automotive shredder residue
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- Stanicic, Ivana, 1994 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Space, Earth and Environment, Division of Energy Technology, Chalmers University of Technology, Gothenburg, Sweden
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- Cañete Vela, Isabel, 1992 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Space, Earth and Environment, Division of Energy Technology, Chalmers University of Technology, Gothenburg, Sweden
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- Backman, Rainer (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Umeå University
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- Maric, Jelena, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Space, Earth and Environment, Division of Energy Technology, Chalmers University of Technology, Gothenburg, Sweden
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- Cao, Yu, 1969 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Materials & Manufacturing Technology, Chalmers University of Technology, Gothenburg, Sweden
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- Mattisson, Tobias, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Space, Earth and Environment, Division of Energy Technology, Chalmers University of Technology, Gothenburg, Sweden
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(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- Engelska.
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Ingår i: Fuel. - : Elsevier BV. - 0016-2361 .- 1873-7153. ; 302
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://research.cha...
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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
- Gasification experiments in this study were performed in a 2–4 MW indirect gasifier coupled to a semi-commercial CFB combustor at Chalmers University of Technology. Experiments were carried out during 13 days with automotive shredder residue (ASR), giving a unique opportunity to investigate the bed material under realistic conditions and with long residence times. The metal rich ash was accumulated in the bed, gaining some oxygen carrying capabilities, creating a chemical looping gasification (CLG) process. This study aims to expand the knowledge about the chemistry of zinc, copper, lead and antimony during CLG of ASR. Several experimental methods have been utilized, such as XRD, SEM-EDX and XPS along with detailed thermodynamic calculations to study chemical transformations that can occur in the system. Thermodynamic calculations showed that the reduction potential affect the phase distribution of these elements, where highly reduction conditions result in heavy metals dissolving in the slag phase. Copper and zinc ferrites, lead silicates and antimony oxides were identified at the particle surfaces in the bottom ash. The formation of an iron rich ash layer plays an important role, especially for copper and zinc speciation. The main pathways in the complex CLG system have been discussed in detail.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Chemical looping gasification
- Fluidized bed
- Trace elements
- Automotive shredder residue
- Combustion
- Ash characterization
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- ref (ämneskategori)
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