sulfuric acid exhaust gas
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Who knows which company uses the ammonia method to absorb exhaust gases?
We produce sulfuric acid from sulfur, and use the ammonia method to absorb the exhaust gases.
Outdated technology, emissions that do not meet standards, poor appearance; using ionic liquids yields very good results
Do you use the ammonia absorption method, and is there a lot of smoke in the exhaust gas?
Under normal conditions, as long as the pH and specific gravity of the tail-suction circulation fluid are well controlled, little to no smoke can be seen coming from the chimney.
Our company specializes in the production of ionic liquids, and we have many successful cases. If you need to use ionic liquids in the future, feel free to contact us – they offer excellent cost-performance ratios. It’s convenient to add on QQ: 375897676
In the ammonia-based desulfurization process, there is no strict requirement that the pH must not exceed 6; each plant has its own requirements for control, but it generally remains between 5 and 6. Theoretically speaking, the higher the pH, that is, the higher the alkalinity, the better the desulfurization effect – but in reality this is not the case. Desulfurization is a simple chemical process that involves the absorption of sulfur dioxide, neutralization, the oxidation of sulfite ions, and the crystallization of by-products. But these processes promote and influence each other. Taking pH as an example, a high pH is favorable for absorption and neutralization, but it hinders the oxidation of sulfite (which can affect desulfurization efficiency over time) and influences the crystal growth of sulfates. Based on empirical experience, the optimal pH range is between 4.5 and 5.5; this range ensures a satisfactory desulfurization effect while also facilitating the proper oxidation of sulfite ions, thus enabling the entire desulfurization process to proceed smoothly. The control of pH is achieved by adding ammonia solution. Most of the specific implementation methods are now designed for automatic control; by adjusting the opening degree of valves based on changes in pH, as well as changes in flue gas volume and sulfur dioxide concentration, it is possible to maintain a stable pH level and ensure stable control of emission standards.