Sampling Systems for Ammonia

Sampling systems for ammonia

While ammonia has so far been used as a refrigerant and is an essential component in the production of fertilizers, it also appears to have potential as a fuel and hydrogen storage medium and is thus becoming increasingly important. It's characteristic of being relatively easy to liquefy as a gas comes with it a number of advantages. It can be easily stored and transported. But it is precisely this property that must be taken into account when taking samples of liquid ammonia. Metal sample bottles, so-called sample cylinders, are suitable for sampling. They have to be secured against complete filling with liquid product. Usually a dip tube is used as an overfill protection. However, as with the sampling of liquid gas, this is not a sufficiently suitable protective measure in the case of NH3 sampling. Following DIN 51610, a permissible filling weight can be specified and this can be checked by weighing on site after filling the sample cylinder. It is not necessary to disconnect and remove the cylinder each time for checkweighing. Since the loading can be checked at any time on the indicator of the implemented balance and, at the same time, excess sample material can be conveniently discharged via a connection to a flare system, overfilling can be avoided.

Preview video of the sampling procedure for ammonia

How does the sampling system for ammonia work? The following video gives you an insight.