Acid production from sulfur concentrate: two-stage conversion and two-stage absorption system. What are the domestic requirements for the primary conversion rate and the overall conversion rate?
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Acid production from sulfur concentrate using a two-stage conversion and two-stage absorption system. What are the required values for the primary conversion rate and the overall conversion rate in China? Thank you to my colleagues for providing information!
The key is to see whether the exhaust emissions can meet the **standards**. The required overall conversion rate is related to the gas concentration; the higher the gas concentration, the higher the required overall conversion rate.
Sofas! The overall conversion rate usually ranges from 99.7% to 99.8%; it can’t go any higher than that. The conversion rate per transaction is around 93%
**The main criterion is the SO2 concentration in the exhaust gases, with requirements regarding the overall conversion rate.
The conversion rate was measured using the iodometry method: the single-pass conversion rate is approximately 89%, while the overall conversion rate is around 98.8%. When the exhaust gas treatment device is not in use, the exhaust gas does not meet the standards; its concentration is about 8.2%. I wonder if it might be due to poor catalyst activity.
The gas concentration is 8.2, and the conversion rate is 98.8 – which seems a bit low. However, there could be many reasons for the low conversion rate: it might be due to a poor catalyst, inadequate temperature control, impurities in the gas (such as CO), leaks in the heat exchanger, short circuits in the catalyst layer, or problems with the detection system, among others. There are too many possibilities to list them all.