SDG sour gas adsorbent is a solid granular inorganic substance with high specific surface area, which is widely used in the purification of sour gas. When the diffusion movement of the acid gas in the purified gas reaches the surface of the SDG adsorbent, it will be fixed by its strong adsorption force, and then a series of chemical reactions will occur with the active ingredients in it. These reactions involve the generation of new neutral salt species, which stores the acid gas in the structure of the SDG adsorbent.
The purification process of SDG acid gas adsorbent is a multi-functional and comprehensive effect. In addition to physical adsorption, there are various mechanisms such as chemical adsorption, particle adsorption, catalysis, and chemical reactions. This combination allows SDG adsorbents to purify sour gases more efficiently, especially for some hard-to-treat sour gas components.
Taking NOx as an example, the purification rate of NOx by lye absorption method is low. This is because under normal circumstances, NOx is 50% of NO2 and NO2. Whereas, NO is insoluble in water and therefore cannot be absorbed by lye. In the lye absorption process, only NO2 can be absorbed, while NO cannot be effectively treated. However, SDG acid gas adsorbents can adsorb both NO and NO2. Under the catalytic action on the surface of the SDG, NO reacts with O2 to form NO2, which continues to react to achieve the purpose of final purification.
In addition, the chemical reaction process of SDG acid gas adsorbents gives it a larger adsorption capacity, which greatly increases its service life. Compared with other purification methods, SDG acid gas adsorbents have higher purification efficiency and longer service life, so they have a wide range of application prospects in the field of acid gas purification.
In summary, the SDG acid gas adsorbent purification process is an efficient and reliable acid gas purification technology. Through a multifunctional integrated mechanism of action and a unique chemical reaction process, SDG adsorbents are able to achieve deep purification of sour gas with a longer service life. This provides an effective technical means to solve the problem of acid gas pollution, which is of great significance for protecting the environment and human health.