Simulation for Stripping Process flow of Dilute Ammonia Liquor Based on Aspen Plus

In order to decrease the concentration of diluted ammonia water emissions in synthetic ammonia process,the ammonia water stripping process was simulated based on Aspen Plus software. Under satisfying the condition that ammonia content in the tower bottom was less than 0. 5%,the suitable operation parameters were obtained for the air stripping tower. The feeding temperature of ammonia water was 60℃,number of theoretical tower plates was 6,the feeding air flow was 500 kg / h,and the diameter of the stripping tower was 1. 4 m with 50 steel INTX packing selected.