Quote Originally Posted by smpsmp45
...to collect the oil floating on Liquid ammonia.
For most ***** systems, I have seen this occur as described above.

However, for ammonia systems this should be the other way around. Liquid ammonia floats on top of the oil.

There might be some cases where the oil could be collected from the liquid, if the liquid and oil are agitated though. And this might certainly be true in a flooded chiller as there are very high circulation potentials due to boiling.

Even with better oil separators, none of them are 100% efficient. The oil accumulation in the system just takes longer now.