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Termotehnika
2009, vol. 35, iss. 3-4, pp. 251-261
article language: Serbian
document type: Professional Paper
published on: 02/11/2010
Low-temperature corrosion in water boiler systems
Institute Goša, Belgrade

e-mail: bojan.gligorijevic@institutgosa.rs

Project

Projekat Ministarstva nauke Republike Srbije, br. 19205: Istraživanje mogućnosti optimizacije rada i revitalizacije habajućih delova ventilacionog mlina termoelektrane Drmno-Kostolac

Abstract

During the exploitation steel tubes were damaged in economizer of the water boiler system, which works in the regime with periodic shutdowns. The aim of this work was to determine the cause of steel-tubes damage on the flue gas side of the water-boiler system. Chemical analysis of heavy fuel oil, deposit and flue gases were employed, pH measurements of deposit water solution as well as qualitative optical microscopy. Additionally, the water-boiler working conditions were analyzed. Results have shown significant presence of Fe species in deposit and low pH values of deposit solution. Damages were probably caused by the low temperature corrosion. The assumption is that the damages were more intensive during the water boiler shutdowns periods.

Keywords

water boiler systems; heavy fuel oil; deposit; low temperature corrosion; diagnostics

References

Andijani, I., Malik, A.U. (2004) Sulfur and vanadium induced hot corrosion of boiler tubes, saline water conversion corporation, research & development center. in: Chemistry & industry conference, King Saud University, Riyadh
Barreras, F., Barroso, J. (2004) Behaviour of a high-capacity steam boiler using heavy fuel oil. Fuel Processing Technology, 86, 2, 107-121, Part II: Cold-End Corrosion
Barroso, J., Barreras, F., Ballester, J. (2004) Behaviour of a high-capacity steam boiler using heavy fuel oil. Fuel Processing Technology, 86, 22, 89-105, Part I: High Temperature Corrosion
Bludszuweit, S., i dr. (2000) Mechanisms of high temperature corrosion in turbochargers of modern four-stroke marine engines. in: Motor ship conference, Proceedings, Amsterdam, 1-22
Energy Information Administration (2000) International Energy Outlook 2000. Washington
Ganapathy, V. (1989) Cold end corrosion: Causes and cures. Hydrocarbon Processing, 68, Jan., 57-59
Huijbregts, W.M.M., Leferink, R. (2004) Latest advances in the understanding of acid dew point corrosion: Corrosion and stress corrosion cracking in combustion gas condensates. Anti-Corrosion Methods and Materials, 51, 3, 173-188
Katavić, B., Jegdić, B. (2007) Analiza oštećenja ekranskih cevi ložišta vrelovodnog kotla. Zavarivanje i zavarene konstrukcije, vol. 52, br. 4, str. 123-130
Mayan, K.P.C., Dalvi, A.G. (1995) Evaluation of chemical fuel additives to control corrosion and emission in dual purpose desal/power plants. in: Conference IDA, Abu Dhabi
Ošljanac, B. (2007) Neki korozioni problemi plameno-dimne strane kotla. Integritet i vek konstrukcija, vol. 7, br. 2, str. 96-100
Otsuka, N. (2002) Effects of fuel impurities on the fireside corrosion of boiler tubes in advanced power generating systems: A thermodynamic calculation of deposit chemistry. Corrosion Science, 44, 2, str. 265-283
Rahman, M.M., i dr. (2005) Evaluation of fuel chemical additives to reduce corrosion and stack emission in SWCC power plants. in: Acquired experience symposium (4th), SWCC, Jeddah, Saudi Arabia
Vogtle, G. (1978) Einsatz von Kraftstoffen schlechter Qualität in Dieselmotoren. Schiff und Hafen, 8, 690-692
Wright, I.G. (1987) Hot corrosion in coal- and oil-fired boilers: Corrosion in fossil fuel power plants. Metal handbook, vol. 13/I, 995