WFRF:(Mikko S)
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Occurrence and sources of zinc in fuels
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- Jones, Frida (författare)
- RISE,Förbrännings- och aerosolteknik,Åbo Akademi University, Finland
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- Bankiewicz, Dorota (författare)
- Åbo Akademi University, Finland
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- Hupa, Mikko (författare)
- Åbo Akademi University, Finland
- (creator_code:org_t)
- Elsevier BV, 2014
- 2014
- Engelska.
- Ingår i: Fuel. - : Elsevier BV. - 0016-2361 .- 1873-7153. ; 117:A, s. 763-775
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Several studies have shown that the presence of high amounts of Zn, in addition to other elements, in fuels can be a cause of operational difficulties during combustion due to corrosion and slagging and can also cause environmental and health problems due to emissions. In nature, Zn is an essential micronutrient for humans, animals and plants, but in excessive amounts it becomes toxic. This paper presents a review on the content of Zn in different fuels used in energy conversion systems. Altogether, over 20 different fuels divided among waste, biomass and fossil fuels were studied. The highest amounts of Zn are present in waste-derived fuels, particularly in Tire-Derived Fuel (TDF). In tires, Zn is used as a vulcanizing agent and can reach concentration values of 9600-16,800 mg kg-1DS. Waste Electrical and Electronic Equipment (WEEE) is the second Zn-richest fuel; while on average Zn content is around 4000 mg kg-1DS., values of over 19,000 mg kg-1DS. were also reported. High amounts of Zn, 3000-4000 mg kg-1DS., are also found in municipal solid waste (MSW), sludge with over 2000 mg kg-1DS. on average (some exceptions up to 49,000 mg kg-1DS.), and other waste-derived fuels (over 1000 mg kg-1DS.). Zn can also be found in fossil fuels. In coal, the level of Zn is quite low, on average 100 mg kg-1DS., while higher amounts of Zn were reported for oil shale, with values between 20 and 2680 mg kg-1DS. The content of Zn in biomass is basically determined by its natural occurrence, typically 10-100 mg kg-1DS.
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