Local Exhaust Ventilation
Local Exhaust Ventilation
(OP)
We transfer a ammonia solution from Bulk-Trailer to a 6000 gal bulk-storage tank which is located inside our facility. This solution has 25% ammoniam hydroxide, 25% ammoniam chloride, and the rest is water and some other minor components. The transfer rate is 70 gal/min. What is the proper way to get rid of ammonia vapors coming into the facility?





RE: Local Exhaust Ventilation
Consider routing the tank vent to a spray scrubber to clean the air that is displaced by the incoming liquid. Ammonia vapours are effectively scrubbed with a dilute acid solution (e.g. sulfuric acid).
PeterAB.
RE: Local Exhaust Ventilation
A very simple "bubble" chamber attached to the breather (together with a vacuum relief valve) containing dilute sulphuric acid will do the trick.
Be careful of the depth of immersion of the chamber inlet. If the tank is rated to say 4 inch WG, then don't submerge the inlet pipe further than say 3 inches.
Profaic
RE: Local Exhaust Ventilation
RE: Local Exhaust Ventilation
The carrier then does the same at the other end and the result is reduced emmisions and reduced losses.
RE: Local Exhaust Ventilation
RE: Local Exhaust Ventilation
If this is the case - use ECOSORB Odor Neutralizer (713 910 3773) which neutralizes Ammonia odors on contact, without the use of hazardous chemicals (sulphuric acid, etc.). It is a safe, cost effective solution which is only used when the spill odor occurs.
Allen Botha