Low-temperature corrosion in water boiler systems

  • 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
  • Pages
    251 - 261
  • UDC
    621.1:620.193.46/.47
  • BIBLID
    0350-218X, 35 (2009), 3-4, 251-261
  • References
    • EIA, International Energy Outlook 2000, Energy Information Administration, US Department of Energy, Washington, 2000
    • Barroso, J., Barreras, F., Ballester J., Behaviour of a High-Capacity Steam Boiler Using Heavy Fuel Oil, Part I: High Temperature Corrosion, Fuel Procesing Technology, 86 (2004), 22, 89-105
    • Rahman, M. M., et al., Evaluation of Fuel Chemical Additives to Reduce Corrosion and Stack Emission in SWCC Power Plants, Presented at 4th SWCC Acquired Experience Symposium, Jeddah, Saudi Arabia, 2005
    • Wright, I. G., Hot Corrosion in Coal- and Oil-Fired Boilers, Chapter: Corrosion in Fossil Fuel Power Plants, in: Metal Handbook, 1987, Vol. 13/I, 995
    • Barreras, F., Barroso, J., Behaviour of a High-Capacity Steam Boiler Using Heavy Fuel Oil, Part II: Cold-End Corrosion, Fuel Procesing Technology, 86 (2004), 2, 107-121
    • Mayan Kutty, P. C., Dalvi, A. G., Evaluation of Chemical Fuel Additives to Control Corrosion and Emission in Dual Purpose Desal/Power Plants, Presented at IDA Conference, Abu Dhabi, 1995
    • Andijani, I., Malik, A. U., Sulfur and Vanadium Induced Hot Corrosion of Boiler Tubes, Saline Water Conversion Corporation, Research & Development Center, Presented at “Chemistry & Industry” Conference, King Saud University, Riyadh, 2004
    • Bludszuweit, S., et al., Mechanisms of High Temperature Corrosion in Turbochargers of Modern Four-Stroke Marine Engines, Proceedings, Motor Ship Conference, Amsterdam, 2000, 1-22
    • Vögtle, G., Einsatz von Kraftstoffen schlechter Qualität in Dieselmotoren, Schiff & Hafen, (1978), 8, 690-692
    • Ganapathy, V., Cold End Corrosion: Causes and Cures, Hydrocarbon Processing, 68 (1989), Jan., 57-59
    • Ošljanac, B., Neki korozioni problemi plameno‡dimne strane kotla, Integritet i vek konstrukcija, 7 (2007), 2, 96‡100
    • Katavić, B., Jegdić, B., Analiza oštećenja ekranskih cevi ložišta vrelovodnog kotla, Zavarivanje i zavarene konstrukcije, 52 (2007), 4, 123‡130
    • Huijbregts, W. M. M., Leferink, R., 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 (2004), 3, 173-188
    • Otsuka, N., 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 (2002), 2, 265-283
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