How to handle the removal of aerosols from flue gas?
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One of our absorption towers is used to absorb nitrogen oxides using an ammonium-based alkaline solution. However, the exhaust gas contains a significant amount of mist. It is said that this mist results from tiny particles formed during the reaction between the ammonium solution and nitrogen oxides – namely aerosols. Due to their extremely small size, these aerosols are difficult to remove. May I ask how such flue gases containing aerosols can be treated in order to eliminate the misting phenomenon? Thank you!
It can be addressed by using high-efficiency electrostatic precipitators. However, *ao acid and ammonium nitrite tend to adhere easily to the surface of the equipment, so vibration/sweeping should be intensified! Additionally, you can refer to the relevant processes for product recovery in nitrogen fertilizer production! This post was last edited by la9975956 on 2009-2-9 07:58.]
The aerosol issue is a common problem in ammonia-based flue gas purification, and the best mist removal devices can currently only keep the mist droplet concentration at around 75 mg. To fundamentally control aerosols, the key aspects are as follows: 1. Increase the oxidation rate and reduce the amount of nitrous acid, as it is unstable and prone to decomposition, leading to ammonia escape ； 2. Control the pH of the absorption solution ； 3. Add a washing layer ； 4. A demister with good performance is required
Where the project is located and what the local environment is like both have an impact on the approach to handling it. It can be solved.