Satsha Management Services completes conceptual study and engineering design of ammonia vapor absorption system (breather vessel) for 50 m3 aq ammonia storage to the fullest satisfaction of the client-ISGEC Heavy Engineering Limited. With this, Satsha Management Services has become one of only few Indian engineering companies to carry out basic engineering for design of breather vessel. Breather vessel is provided to prevent loss of ammonia to environment from slightly-above-atmospheric storage tank in the event operating temperature of the storage tank goes above boiling temperature. It prevents the loss of containment by absorption of ammonia vapor coming out of the storage tank through absorption by water and returning back the ammonical solution into the tank. Design of the breather vessel is based on vapor generation from storage tank from all possible sources i.e. solar radiation, pumping energy and displaced vapor from filling liquid. Solubility of ammonia vapor in water becomes important factor affecting design of the breather vessel. It’s one of the most commonly used aq ammonia storage systems for reduction of NOx from power plant flue gases through selective non catalytic reduction (SNCR) technique.