Many air cooled power plants always use ammonia to increase the pH value in feed water.However

due to its high gas-liquid partition coefficient

less ammonias would stay in liquid phase.As a result

corrosion would occur in early condensation area for the pH value in early condensate is low.Thus

we proposed an amine as the new alkalizer

named YA01

whose behavior is opposite to ammonia.The industrial application cases demonstrated that the new alkalizer could enhance the pH value significantly for the early condensate

and shows a low decomposition rate in turbine exhaust steam

which is profit to steam-water quality.Furthermore

compared to the way of simply increasing ammonia in maintaining the pH value

the combined utilization of YA01 and ammonia could extend the operation cycle for the cation bed.