1SDGMechanism of adsorbent purification process
　　SDGAdsorbent is a solid particulate inorganic substance with a larger specific surface area. When the acid gas in the purified gas diffuses and moves toSDGWhen the surface adsorption force field of the adsorbent is applied, it is fixed on its surface,Then it undergoes a chemical reaction with the active ingredient, generating a new neutral salt substance that is stored inSDGIn the adsorbent structure.SDGAdsorbents have a multifunctional and comprehensive effect on the purification of acidic gases. In addition to general physical adsorption, there are also chemical adsorption, particle adsorption, catalytic action, chemical reactions, etc. Just take itNOXWhy is the alkaline absorption method effectiveNOXThe low purification rate is due to its ability toNOXThe purification process is relatively simple. People know thatNOXUnder normal circumstances, it isNO₂andNOEach occupying50%The proportion exists, andNOIt is insoluble in water and cannot enter the alkaline solution, so the alkaline solution only absorbsNO₂This part.NO₂After reduction, someNOFurther oxidation intoNO₂AndSDGPurification is different, it canNO₂、NOAll adsorption, thenNOgiveSDGsurfaceO₂Generated under its surface catalytic actionNO₂Continue the reaction to achieve purification. And becauseSDGThere is a chemical reaction process from the surface to the inside, which greatly increases its adsorption capacity and thus greatly extends its service life.
　　IISDGCharacteristics of adsorption purification process
Under developmentSDGBefore the adsorbent, we conducted extensive research and investigation on the process equipment in the field of acid gas purification, complementing each other's strengths and weaknesses. Its advantages in this field are mainly manifested in the following aspects.
　　1It can purify multiple acidic gases at the same time. Nowadays, pickling is mostly carried out using a mixture of multiple acids, such as pickling, deplating, chemical polishing, surface passivation in the electroplating industry, and etching in the electronics industry. However, the various acid gases generated during these operations are difficult to achieve through other methods of primary purification.
　　2High purification efficiency.SDGThe purification rate of adsorption purification process can be designed according to the needs of users, which means that its purification efficiency can be designed arbitrarily based on meeting national and local environmental regulations.
　　3、SDGThe adsorption purification process is easy to operate. equalSDGAfter the installation of the adsorption purification process, there is no need for dedicated personnel to manage it. As long as the fan is turned on, it will automatically complete its purification process.
　　4、SDGThe adsorption purification process also has no special requirements for environmental conditions. For example, in northern regions, the absorption of alkaline solution must be done indoors, otherwise it will freeze and cannot be usedSDGThe adsorption purification process has no such concerns. Under high temperature conditions in the south, the adsorption of activated carbon is affected, whileSDGAdsorbents have no effect.
　　5、SDGThe adsorption purification process is safe to use.SDGAdsorbent is a weakly alkaline solid inorganic substance, non-toxic and non corrosive. After adsorption saturation, it becomes neutral.
　　6No secondary pollution. This process does not require water, therefore no wastewater is generated. After adsorption saturation, the adsorbent is non-toxic and harmless, and can be used as harmless garbage for road construction or pit filling.
　　7Low operating costs. Maintenance free, only requiring regular replacement of the adsorbent.
　　3、 Adsorbent Performance Table