Is it possible to used liquid NH4OH instead of Organic Amine to maintain the ph level of water in boilers? The pH adjustable is the main chemical used to maintain the water pH between 8.5-9.5 as per the boiler specification requirements, norms and standard. For that purpose Organic amines injected into Heat Recovery Steam Generation (HRSG), to adjust the pH. Due to The high cost of chemical based Amin, then alternative such as NH4OH proposed.
There are many challenges such as reaction of ammonia with chloride, which may lead, sever corrosion of the boiler tubes specially in Amal boilers because of the boiler feed water containing 3000 ppm chloride where in plant it can't exceed more than 6 ppm.
Will you please guide us that which standards or possible methods should we followed to proceed further.
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