This document is very good and helpfull.
what is the loop seal in the deaearator system ??
what is the provision of same ??
ours is spray type (try type) deaerator for both recovery and coal fired boiler of 200tph and 105 tph capacity, with mechanical deaeration the o2 content is 10 ppb after addition of n2h4 with hydroquinone achieving 2 ppb,(with poly amine treatment). can you suggest alternate chemical in place of hydrazine to remove 02 to lowest possible?
HPAC Engineering Magazine
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