通过分析，我们选取塔顶水流量，塔底甲醇流量以及冷凝器与再沸器的总热负荷

Through analysis, we select the top water flow, bottom methanol flow, and the total heat load of the condenser and reboiler as dependent variables. When the top water flow is less, the dehydration effect is better; the lower the bottom methanol flow, the methanol The better the recovery effect, and at the same time, we found through simulation that the better the methanol recovery effect, the better the recovery effect of MAL; the less the total heat load, the lower the utility cost.

Through analysis, we choose the tower top water flow, the tower methanol flow and the total heat load of condenser and reboiler as the dependent variable, when the tower top water flow is less, the better the dehydration effect;

Through the analysis, we select the top water flow rate, the bottom methanol flow rate and the total heat load of condenser and reboiler as the dependent variables. When the top water flow rate is less, the dehydration effect is better; At the same time, we found that the better the methanol recovery effect, the better the mal recovery effect; The less the total heat load, the lower the utility cost.<br>