Refrigeration systems can be used for various purposes besides lowering temperatures, including facilitating phase changes in products or processes. In the production of nitrogenous fertilizers, the ammonia that evaporates in the ammonia storage tank plays an important role in being returned to the tank by being liquefied through a refrigeration system.
Methods of Ammonia Storage:
• Storage in either 100% pure liquid ammonia or aqueous
solution.
• Large atmospheric tanks are used to store 100% pure
liquid ammonia.
• Insulated tanks can heat up and transition into the gas
phase depending on the ambient temperature.
The Importance And Advantages Of The Refrigeration System In Ammonia Storage
Effective Storage: Ammonia is a crucial raw material in nitrogenous fertilizer production and needs to be stored at high purity levels. Cooling systems maintain the ammonia at ideal storage temperatures, preventing its transition into the gas phase. This minimizes ammonia losses, extends storage durations, and ensures supply continuity.
Safety and Risk Control: Ammonia is a gas that requires storage at high pressures and can pose potential hazards. Cooling systems control excessive pressure, temperature increases, or leakage situations in ammonia storage tanks. This minimizes safety risks and ensures workplace security.
Ammonia Recovery: Cooling systems are utilized for recovering ammonia that has transitioned into the gas phase. Compressors compress the ammonia, converting it back into the liquid phase for refeeding in the storage tank. This recovery process enables efficient utilization of ammonia and reduces costs.
Controlled Phase Change: An ammonia refrigeration system allows for controlled phase changes between the liquid and gas phases of ammonia. This enhances the desired utilization of ammonia in fertilizer production and improves process efficiency.
Energy Efficiency: Ammonia refrigeration systems are known for their reliability and economic usage. Ammonia refrigeration provides high cooling capacity with lower energy consumption. Well-designed and properly maintained systems result in energy and cost savings in fertilizer production facilities.
