How to calculate the dosage of chemicals to be added on a daily basis to the boiler water system of a hydrogen production plant?
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How to calculate the dosage of chemicals to be added on a daily basis to the boiler water system of a hydrogen production plant?
What kind of water is used? What are the water supply parameters?
Deoxygenated water: Injection volume is adjusted based on the sample from the air pocket
Deoxygenated water: hardness ≤ 1.5 μmol/L, dissolved oxygen ≤ 15 μg/L, iron ≤ 50 μg/L, copper ≤ 10 μg/L, SiO2 ≤ 0.1 mg/L, pH value 8.5–9.2, oil
PH, dissolved oxygen, hardness, and CL ions are the key factors
A metering pump is used for adding chemicals, and it can be adjusted based on the analysis results. First, it is necessary to stabilize the waste discharge rate as required (usually around 2%). Boiler feedwater and furnace water are different concepts; generally, the furnace water becomes 50 times more concentrated. If you are preparing the potion yourself, pay attention to its concentration and keep it stable.
The phosphate/PH level regulates the stroke of the metering pump.