High-concentration ammonia is used in acid scrubbers to produce sulfuric acid – any help?
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The conditions of the exhaust gas are as follows: >> Gas volume: 300 m3/h >> Ammonia emission: 39.03 kg/h >> CO: 1.7 kg/h >> Temperature: 20 degrees Celsius >> Pressure: atmospheric pressure. Currently, this project has decided to use the sulfuric acid washing process to produce sulfuric acid. The preliminary idea at present is to use a two-stage acid washing process: the first stage is aimed mainly at recovering sulfuric acid, while the second stage is used to remove any remaining ammonia, thereby ensuring compliance with the emission standards (25 m for odorous pollutants). The concentration of the anhydrous sulfuric acid product needs to reach 70%. If any of you experts have experience in this area, please feel free to share your insights. Thank you. Email: ppp0709@126.com
1. It is necessary to examine the solubility of sulfuric acid an at the operating temperature to determine whether a concentration of 70% can be achieved; 2. The design calculations are based primarily on the physical properties of this substance, including the choice of packing material, tower height and diameter, as well as the material used for construction.
Have the guys on the 2nd floor done such projects themselves or with friends? Thank you!
I don’t think producing ammonium sulfate is a good idea; the yield is low and there’s little profit to be made. I think if ammonia is recovered as noctilucent ammonia, its value goes up. But your desolation is too small; the device is tiny. This must be an environmental protection project. I am working on an ammonia recovery project. For inquiries, please contact: sdfchfcm@163.com
There are many methods for recovering gaseous ammonia, and different products can be obtained. An optimal solution should be selected after thorough consideration, taking into account the actual conditions of the enterprise as well as market conditions. The simplest and most cost-effective method of recovery is to wash it to produce ammonia, provided that the ammonia can be utilized or sold ； Recycling it into liquid ammonia requires much higher investment and operating costs, and safety issues during storage must also be taken into account ； Processing AN sulfate is theoretically feasible, but it is necessary to understand the market conditions; storing sulfuric acid and processing AN sulfate are also very troublesome tasks.