Solve! ! ! Why does the water content in low-temperature methanol washing affect absorption?
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Hello, experts! I saw in a previous post that in low-temperature methanol washing, when the water content in the lean methanol exceeds 0.5%, it affects the absorption of hydrogen sulfide; when this value is above 5%, the solubility of carbon dioxide decreases by 15%, and the solubility of hydrogen sulfide also decreases. So what does a high water content in lean methanol affect in methanol? Proportion, viscosity? Or is it the high water content that leads to corrosion and blockage of the heat exchanger by ferrous sulfide or other ions, resulting in uneven heat transfer? Can someone expert help answer this? Thank you to all the experts
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My understanding is that it is primarily low-temperature methanol that absorbs hydrogen sulfide and carbon dioxide, but if the water content is high, the methanol concentration decreases, which in turn affects the absorption of acidic gases