How is the emission amount of acidic gases from the top of the gasoline hydrogenation gas tower determined?
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With the top pressure remaining constant, as well as the feed rate and the properties of the raw materials unchanged, the temperature of the cooled gas at the tower top can sometimes drop from 26 degrees to just a few dozen degrees during the day and night. If this temperature is not adjusted, then in such cases, should pressure be reduced to adjust the amount of acidic gas, or should the temperature at the tower bottom be increased? This situation can sometimes result in poor stripping efficiency in the stripper, causing the refined oil to contain hydrogen sulfide and thus increasing its sulfur content. Are there any good solutions?
Personally, I think some mention of bottom inflation should be included
Only the temperature after cooling needs to be adjusted; as long as the temperature at the bottom of the distillation column is not below 140, there’s no need to worry about it. The sulfur content still depends on the cut ratio in the fractionation column and the reaction temperature
The temperature is low after cooling; it’s sufficient to monitor the temperature at the bottom of the tower.