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Lab-scale investigations have been conducted on the impact of additives on the abatement of chlorine corrosion induced by combustion or co-firing of agricultural biofuels in boilers. The effect of potassium retention and chlorine liberation was examined applying domestic aluminosilicates. The following additives were examined: kaolin, bentonite, halloysite and lignite fly ash. The samples of potassium chloride and the additive mixtures were heated in the muffle furnace at the temperature range 600–1000 ºC. The obtained sintered samples were examined on: chlorine content, potassium retention and crystalline structure. Three minerals additives (kaolin, bentonite and halloysite) appeared to be effective in potassium binding in high temperature melting potassium aluminosilicates and in liberating chlorine at the temperature range 800–1000 ºC. Also the aluminosilicate type lignite fly ash can be considered as very effective and inexpensive additive that prevents chlorine corrosion during biomass co-firing.
Czasopismo
Rocznik
Tom
Strony
37--43
Opis fizyczny
Bibliogr. 10 poz., tab., wykr.
Twórcy
autor
- Wrocław University of Technology, Institute of Heat Engineering and Fluid Mechanics, Poland
autor
- Wrocław University of Technology, Institute of Heat Engineering and Fluid Mechanics, Poland
autor
- Wrocław University of Technology, Institute of Heat Engineering and Fluid Mechanics, Poland
Bibliografia
- [1] PKN-CEN/TS 14961: 2007 Biofuels. Fuel Specifications and Classes.
- [2] H. Nielsen, F. Fradsen, K. Dam-Johansen, L. Baxter, The implications of chlorine-associated corrosion on the operation of biomass-fired boilers, Prog. Energy Combust. Sci. 26 (2000) 283–298.
- [3] L. Tobiasen, R. Skytte, L. S. Pedersen, S. T. Pedersen, M. A. Lindberg, Deposit characteristic after injection of additives to a danish straw-fired suspension boiler, Fuel Processing Technology 88 (11–12) (2007) 1108–1117. doi:10.1016/j.fuproc.2007.06.017.
- [4] L. Stoch, Minerały ilaste, Wydawnictwa Geologiczne, Warszawa, 1974.
- [5] S. Kozłowski (Ed.), Monografie surowców mineralnych Polski. Surowce kaolinowe, Wydawnictwa Geologiczne, Warszawa, 1982.
- [6] J. Schairer, N. Bowen, The system, leucite - diopside - silica. URL http://earth.geology.yale.edu/ ajs/1938-A/289.pdf
- [7] B.-M. Steenari, A. Lundberg, H. Pettersson, M. Wilewska-Bien, D. Andersson, Investigation of ash sintering during combustion of agricultural residues and the effect of additives, Energy & Fuels 23 (11) (2009) 5655–5662. arXiv:http://pubs.acs.org/doi/pdf/10.1021/ef900471u, doi:10.1021/ef900471u.
- [8] K. Mroczek, S. Kalisz, M. Pronobis, J. Sołtys, The effect of halloysite additive on operation of boilers firing agricultural biomass, Fuel Processing Technology 92 (5) (2011) 845–855. doi:10.1016/j.fuproc.2010.11.020.
- [9] K.-Q. Tran, K. Iisa, B.-M. Steenari, O. Lindqvist, A kinetic study of gaseous alkali capture by kaolin in the fixed bed reactor equipped with an alkali detector, Fuel 84 (2–3) (2005) 169–175. doi:10.1016/j.fuel.2004.08.019.
- [10] PN-ISO 9297: 1944, Jakość wody. Oznaczanie chlorków. Metoda miareczkowania azotanem srebra w obecności chromianu, jako wskaźnika (Metoda Mohra).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-31b88510-2eda-4b93-b3c4-ebce347bb38f