Dosage Comparison of Boiler Lay-up Methods
Notes:
1) Desiccant is not a corrosion inhibitor, but indirectly protects metal from corrosion by absorbing excess water vapor. Desiccant needs to be replaced and is typically designed only to handle moisture up to it’s rated capacity. When capacity is reached it begins to release the stored water back into the vessel. This method relies purely on capturing moisture and only to its rated capacity. Various capacities available..
2) Sulfite + caustic solution must be replenished with time, consequently cost will likely be higher than shown plus the manpower required to check levels. This method does not protect surfaces not in contact with solution. This wet method is not preferred for long term storage/mothballing.
1) Desiccant is not a corrosion inhibitor, but indirectly protects metal from corrosion by absorbing excess water vapor. Desiccant needs to be replaced and is typically designed only to handle moisture up to it’s rated capacity. When capacity is reached it begins to release the stored water back into the vessel. This method relies purely on capturing moisture and only to its rated capacity. Various capacities available..
2) Sulfite + caustic solution must be replenished with time, consequently cost will likely be higher than shown plus the manpower required to check levels. This method does not protect surfaces not in contact with solution. This wet method is not preferred for long term storage/mothballing.