Abstract: Ammonia is an important chemical product and it plays a significant role in the national economy. The process of ammonia synthesis is a typical chemical engineering technology, which includes material treatment, chemical reaction, heat and mass transfer, and product post-treatment. The process is complex with many types of equipment. Furthermore, the production of ammonia consumes a lot of raw materials, fuel and power. Since the energy resource crisis in 1970’, people have faced problems of both lack of energy supply and its higher and higher price. Meanwhile, the nations in the world have made more restrict requirements to environment protection. All these rigorous situations force the ammonia producers to develop technical innovation for energy saving.
In this paper, we did mass and energy balances for whole equipments by utilizing the knowledge of physical chemistry, chemical engineering, separation engineering, numerical analysis and computer technology. Furthermore, the thermodynamic properties and phase equilibrium of each system was calculated. The selection of the equipments was confirmed based on the calculation.
Key words: Synthetic ammonia; Mass balance; Energy balance
