How should I Store AdBlue?
AdBlue should ideally be stored within a temperature range between 0 and 30°C, and kept protected from direct sunlight. It should be properly sealed when it is not being used. It is possible for AdBlue to freeze at -11°C, so it is important that you use a storage area that is not below this temperature. If AdBlue has frozen, it can be reused when it has thawed as it will return to its original state.
The storage area must be clean and free from dust to avoid any contamination, especially when a vehicle is being filled with AdBlue.
If the storage instructions are followed, then AdBlue can be stored for up to a year. If you need to store AdBlue for longer or in difficult conditions, e.g. a combine harvester then it is best to drain the AdBlue first or to analyse the AdBlue to ensure it remains within the specification needed.
How to Handle AdBlue.
Do not use old diesel or oil containers to transfer AdBlue into the tank. Any non-dedicated equipment can contaminate AdBlue. Even very small quantities of fuel/oil/lubricant can damage your SCR system.
Ancillary equipment used to transfer AdBlue must be approved for use with AdBlue. AdBlue can be very corrosive to certain components in the equipment being used therefore each part has to be made from material that doesn’t react with AdBlue, which is normally stainless steel. This obviously increases the cost of equipment from AdBlue storage and dispensing, but in the long run, it will last you a lot longer and is the only item that is compatible for this use.
AdBlue for non-road mobile machinery
Some tractors, excavators, cranes and other mobile engines that run on diesel, but not on roads, are now equipped with SCR technology, which requires a fluid called AdBlue. AdBlue is filled into a dedicated tank, separate from the one for diesel. AdBlue is a transparent liquid that is non-hazardous and easy to use. Thanks to SCR technology and AdBlue, these vehicles are cleaner as their NOxious nitrogen oxides emissions are considerably reduced.
SCR technology and AdBlue for NOx reduction is now common in several types of non-road engines, eg:
• Agriculture/farm engines such as tractors and combine harvesters
• Mobile cranes
• Engines used in harbours and airports
• Excavators and engines used in mines or construction
AdBlue is a specific urea solution that is very pure in order to be compliant with the complex SCR catalyst that converts it. This urea solution is produced and distributed in a more refined process to ensure its purity than the urea solution used by the farmers in mineral fertiliser. Therefore, it is sold at a different price to reflect this.