The effect of the temperature of the nitrogen used for stripping on the hydrogen sulfide concentration tower
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To what extent does temperature affect the hydrogen sulfide concentration tower, and is a higher temperature acceptable?
Generally, there’s no major issue; just check the temperature of the lean methanol
The temperature is high, but if it remains below 40 degrees, the impact can be ignored
The temperature of the nitrogen used for stripping has little effect on the concentration tower, and the flow rate also has little impact on it; however, it causes high pressure in the thermal regeneration tower and an increase in the amount of acidic gas.
The amount of air vented during gas stripping increases slightly at higher temperatures
The nitrogen used in gas lifting is too high, resulting in exhaust gas parameters that do not meet the requirements; hydrogen sulfide is removed, which reduces the concentration of acidic gases. Insufficient nitrogen for gas lifting leads to incomplete purification, causing cooling losses and an increased load on the regeneration tower, which affects the efficiency of regeneration and lowers the quality of methanol. It also reduces the concentration of acidic gases, which is unfavorable for sulfur recovery. Generally, the carbon dioxide content in the liquid exiting the tower is kept at around 1%. Which senior knows the impact of the stripping gas temperature on the stripping effect? Please explain in detail