Abstract
NH<sub>3</sub> exhaust emissions have caused serious environmental problems and caught the public attention. As a toxic alkaline gas, NH<sub>3</sub> not only harms the environment but also damages people's health. The national emission standards are becoming increasingly stricter, and higher requirements need to be met for the deep purification treatment of NH<sub>3</sub>-containing tail gasses. This study focuses on the development and performance of purification treatment technologies, such as absorption, biological filtration, catalytic degradation, adsorption,and membrane separation methods. A process of studying these technologies for NH<sub>3</sub>-containing tail gasses was introduced. In addition, a process simulation of NH<sub>3</sub>-containing tail gas purification technology was analyzed using ionic liquids. This study also provides some forecast prospects for the technical development trend of NH<sub>3</sub>-containing tail gas purification processes.
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