Explore the issue of sulfur recovery exhaust emissions
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I’m worried about exhaust emissions every day. I would like to ask how Super Claus performs in our country, and what is the sulfur emission level? That one is the most successful; I’m going to go learn from it*. If anyone knows, please let me know! There is also solution absorption; that is the best and most mature approach, and what are the emission standards? Everyone, please share the honest data on the sulfur content in the exhaust emissions in PPm
We use the SSR process; the SO2 concentration in the exhaust gases is 327 mg/m3, while the national standard is 960
We have also restored the hydrogenation absorption process, ensuring that the total sulfur content in the flue gas entering the flue gas incinerator does not exceed 300 mg/m3, and keeping the sulfur dioxide content in the chimney exhaust at below 400 mg/m3. The key to meeting exhaust gas standards lies in the air supply for sulfur production and the proper operation of the exhaust gas unit.
Those that directly produce liquid products generally meet the standards； After sulfur production, there must be processes of conversion and liquid absorption in order to meet the standards; without these, it is very difficult to achieve compliance.
The sulfur recovery rate for supercracking is 99.2%, so the SO2 level in the exhaust gases cannot reach the 960 standard.
Environmental standards involve two requirements: total amount and concentration. When the recovery rate is over 99.2%, the concentration after normal incineration is around 1400 ppm, but the total amount meets the standard; in such cases, the concentration standard can be met by adding air to the exhaust gases using fans, which is exactly what JEN does at present.
The method of diluting SO2 concentrations using wind is explicitly prohibited by national standards; it is recommended that you use hydrogen reduction technology to increase the total sulfur recovery rate to over 99.8% in order to meet the national standard requirements.
To meet the standards, President Jiang’s sulfur recovery rate must be increased to over 99.5% in order to satisfy the requirements. By the way: is ppm a volume percentage? Or quality? If it is a volume percentage, ppm × 2.8 = mg/m3. **The regulation refers to the total amount of sulfur dioxide, not the sulfur element itself