Is the gas phase at the top of the atmospheric-pressure ammonia tank utilized by the soft water used for adsorption in the atmospheric-pressure absorption tank?
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Due to process requirements, pressure-free ammonia tanks are equipped with chimneys that are connected to the atmosphere; when the ammonia concentration is high, the ammonia gas that escapes is harmful to the environment. Therefore, during the modification, this gas was introduced into a normal-pressure adsorption tank equipped with a water pump; this normal-pressure adsorption tank also releases ammonia gas when the concentration is high, just like the normal-pressure ammonia water tank. So change the water frequently. I wonder if this process is being used, or if there are methods such as pressure application or other advanced treatment techniques.
Our company also faces this issue when producing sulfur-free ammonia water； I’m not sure what process your company uses in its desulfurization unit? Our factory uses ammonia for desulfurization, and there is a lean liquid tank; that area is also at atmospheric pressure, so the volatile ammonia gas can be directly directed to the lean liquid tank, thereby preventing pressure buildup in the sulfur-free ammonia tank.
Our company also faces this issue when producing sulfur-free ammonia water； I’m not sure what process your company uses in its desulfurization unit? Our factory uses ammonia for desulfurization, and there is a lean liquid tank; that area is also at atmospheric pressure, so the volatile ammonia gas can be directly directed to the lean liquid tank, thereby preventing pressure buildup in the sulfur-free ammonia tank.
Reply to 3# Edong Lone Wolf: I’m not very familiar with the purification processes; I only know that they use the NHD removal method, and ammonia absorption refrigeration involves some ammonia water. There are also atmospheric-pressure tanks. The storage of ammonia recovered in the synthesis section is at atmospheric pressure, so it has a strong odor.