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Journal of Chinese Society for Corrosion and protection  2018, Vol. 38 Issue (2): 105-116    DOI: 10.11902/1005.4537.2017.036
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Corrosion Mechanism of Oil-fired Boiler in Power Plant and Progresses in Anticorrosion Techniques Inside Boiler
Shuyuan LIANG, Cuiyu JIANG()
College of Science, China University of Petroleum, Qingdao 266580, China
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Abstract  

The corrosion types encountered in oil-fired boiler plants were introduced, and the mechanisms related with high- and low-temperature corrosion were elucided. The relevant anticorrosion countermeasures were reviewed with emphasis on cold-end additives, chemical cleaning agents and boiler fuel additives etc., meanwhile, the anticorrosion mechanisms and application characteristics of these additives were also described respectively. The current status of anticorrosion studies for oil-fired boiler in power plant and the necessities of intensive studies on anticorrosion treatment were pointed out, the prospects of anticorrosion treatment were forecasted.

Key words:  high-temperature corrosion      low-temperature corrosion      anticorrosion techniques insideboiler      oil-fired boiler in power plant     
Received:  05 March 2017     

Cite this article: 

Shuyuan LIANG, Cuiyu JIANG. Corrosion Mechanism of Oil-fired Boiler in Power Plant and Progresses in Anticorrosion Techniques Inside Boiler. Journal of Chinese Society for Corrosion and protection, 2018, 38(2): 105-116.

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https://www.jcscp.org/EN/10.11902/1005.4537.2017.036     OR     https://www.jcscp.org/EN/Y2018/V38/I2/105

Compound Melting point / ℃ Compound Melting point / ℃ Compound Melting point / ℃
V2O4 1970 Na2O3V2O5 560 3Na2OV2O5 850
V2O5 670 2Na2O3V2O5 565 10Na2O7V2O5 573
NaVO3 560 Na2OV2O5 630 Na2OV2O45V2O5 625
2Na2OV2O5 640 5Na2OV2O411V2O 535
Table 1  Types and melting points of the main vanadium compounds in oil fly ash
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