How to use the liquid ammonia in the liquid ammonia storage tank to turn it into gaseous ammonia in order to start the ammonia compressor?
Thread Content
During the initial commissioning of an ammonia synthesis plant, how can the ammonia compressor be started using the liquid ammonia in the liquid ammonia storage tank? That is, how to turn liquid ammonia into gaseous ammonia, and then start the ammonia compressor?
If you want to use it, it must be within the limits permitted by the regulations. The liquid can be led to the heat exchanger for heating and vaporization. However, the gas/liquid state in the storage tank is in equilibrium; drawing off pressure from the tank causes it to drop, and it takes time for natural vaporization to occur within the tank. It is necessary to consider whether an adequate supply can be obtained. For reference.
Agree with the opinion above. An evaporator must be present between the liquid ammonia storage tanks and the compressor. I have two liquid ammonia tanks with a capacity of 740 cubic meters each; cooling water at 15°C is used for heat exchange. The compressor is connected to the gas phase, and its minimum operating pressure is 5.5 bar, while the gas phase pressure is generally maintained at 6.1 bar.