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High temperature Corrosion

Vanadium in the fuel causes high temperature corrosion and cannot be removed in any pretreatment processes. Vanadium combines with sodium and sulphur during combustion process and form eutectic compounds with melting point as low as 530 degree celcius and react with protective oxide layer on steel and corrode them. they also can cause metal ash deposits in valves.The only defense is to reduce the working temperatures and coat critical parts prone to this corrosion with stellite or plasma coatings.
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