How does the liquid level in the cold zone change after gas is introduced?
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How does the liquid level in the cold zone change after gas admission in low-temperature methanol washing?
In my opinion, during the initial stage of gas absorption, methanol’s ability to dissolve CO2 and H2S causes the liquid to expand, which leads to an increase in the liquid level in the absorption tower. At this initial stage, the counter-current flow between gas and liquid in the tower creates resistance, resulting in a lower liquid level later on; consequently, the C04 liquid level also drops. Special attention should be paid to this during the initial phase of gas absorption. Once the methanol cycle stabilizes, the C04 level will rise rapidly.