Use of aluminosilicate sorbents to control KCl vapors in biomass combustion gases

  • Tomasz Hardy Wrocław University of Technology, Institute of Heat Engineering and Fluid Mechanics
  • Włodzimierz Kordylewski Wrocław University of Technology, Institute of Heat Engineering and Fluid Mechanics
  • Krzysztof Mościcki Wrocław University of Technology, Institute of Heat Engineering and Fluid Mechanics

Abstract

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.

References

[1] PKN-CEN/TS 14961: 2007 Biofuels. Fuel Specifications and Classes.

[2]Nielsen H.P., Fradsen F.J., Dam-Johansen K., Baxter L.L., The implications of chlorine-associated corrosion on the operation of biomass-fired boilers, Prog. Energy Combust. Sci., Vol. 26, 2000, pp. 283-298.

[3] Stoch L., Minerały ilaste, Wydawnictwa Geologiczne, Warszawa 1974.

[4] Kozłowski S. (pod redakcją) „Monografie surowców mineralnych Polski. Surowce kaolinowe”, Wydawnictwa Geologiczne, Warszawa 1982.

[5] Schairer J.F., Bowen N.L., The system, leucite – diopside – silica, http://earth.geology.yale.edu/~ajs/1938-A/289.pdf

[6] Steenari B.-M., Lundberg A., Petersson H., Wasilewska-Bien M., Anderson D., Investigation of Ash Sintering during Combustion of Agricultural Residues and the Effect of Additives, Energy&Fuels, Vol. 23, 2009, pp. 5655-5662.

[7] Tobiasen L., Skytte R., Pedersen L. S., Pedersen S. T., Lindberg M. A., Deposit characteristic after injection of additives to a Danish straw-fired suspension boiler, Fuel Processing Technology, Vol. 88, 2007, pp. 1108-1117.

[8] Mroczek K, Kalisz S., Pronobis M., Sołtys J., The effect halloysite additive on operation of boiler firing agricultural biomass, Fuel Processing Technology, Vol. 92, 2011, pp. 845-855.

[9] Tran K.-Q., Iisa K., Steenari B.-M., Lindqvist O., A kinetic study of gaseous alkali capture by kaolin in the fixed bed reactor equipped with an alkali detector, Fuel 84, 2005, pp. 169-175.

[10] PN–ISO 9297: 1944, „Jakość wody. Oznaczanie chlorków. Metoda miareczkowania azotanem srebra w obecności chromianu, jako wskaźnika (Metoda Mohra)”
Published
2013-03-18
How to Cite
HARDY, Tomasz; KORDYLEWSKI, Włodzimierz; MOŚCICKI, Krzysztof. Use of aluminosilicate sorbents to control KCl vapors in biomass combustion gases. Journal of Power Technologies, [S.l.], v. 93, n. 1, p. 37--43, mar. 2013. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/373>. Date accessed: 05 aug. 2021.
Section
Power Plant

Keywords

chlorine corrosion, additives, aluminosilicates

Most read articles by the same author(s)

Obs.: This plugin requires at least one statistics/report plugin to be enabled. If your statistics plugins provide more than one metric then please also select a main metric on the admin's site settings page and/or on the journal manager's settings pages.