Help please
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This post was last edited by wawjia on 2010-12-4 23:01. Why, in a methanol distillation plant with four columns, doesn’t the liquid level in the reflux tank drop when both the reflux flow and the product flow are increased? At first, its temperature was very high, but later, as the temperature dropped and the feed rate was reduced, the liquid level decreased. Is there any solution?
Seeking information on the process flow for coal-based ethylene glycol production
Reply to 1# Lai Yanyan: This is the result of load fluctuations; it may be due to an increase in the amount of steam or its pressure, which leads to a rise in the temperature at the bottom of the tower. As a result, more methanol vapor is evaporated, and the temperature of the components at the top of the tower also increases. This can be inferred from the rise in the temperature of the reflux tank as well! The means of control is to regulate the heat load of the control tower, that is, to control the flow rate and pressure of steam.
Well, yes, that’s how we resolved it later as well. Thank you. Hehe