remove Ammonia from Process Condensate of Bushehr Petrochemical Methanol Plant ( Part 1: Process Design)

In Bushehr Petrochemical Company (Methanol plant) a large volume of process condensate was produced, due to two reasons: boiler feed water pre-heater leakage and efficiency reduction of dry feed gas s team saturator, which was contained about 200 ppm of ammonia. In order to protect environment we need to provide consumption of the excess process condensate in other units, or prevent to send this to other was te water treatment plants in the region to save money. For this reason the design and manufacture of an atmospheric s tripper was planned. The equipment process design & mechanical design was performed using the ASPEN PLUS & ANSYS softwares respectively. The designed atmospheric s tripper is able to decrease the ammonia content of 60 Ton/hr process condensate to 2 ppm consuming 6-8 ton/hr low pressure s tripping s team (5.5 barg). This work has led to saving of 252000$ per month, because there is no need to treating was tewater. And also it prevents the discharge of was te water into the environment.