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Posted by gerard.benard on September 14, 2004 at 03:52:08:
In Reply to: Re: Hydrazine x Corrosion ??? posted by tom on September 01, 2004 at 10:12:57:
The guy may be not so foolish. In fact, the presence of high hydrazine, in boiler parts operating with steam water temperatures between 130 to 230°C, will promote FAC flow accelerated corrosion in case of all volatile treatment. This is more pronounced in LP evaporator for HRSG working at around 5 bar. But you can also find in first rows of economizers HP/IP, although not so often. This is a kind of Y2K bug for this industry, but this is real.
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