Methanol distillation simulation
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When using Aspen Plus to simulate methanol distillation, the pressure column fails to achieve the required separation of methanol, with an excessive amount of ethanol in the overhead product. Dear experts, what methods are available to improve this situation?
A high ethanol content at the top of the tower indicates that the heavier components are moving upward; it is necessary to adjust the design and operating parameters of the tower, increasing the reflux ratio. The feed position should also be adjusted, as well as the number of theoretical plates in the distillation section. It might also be useful to adjust the operating pressure of the tower. This post was last edited by ssbayf on 2009-2-26 08:50
This issue can be addressed by appropriately increasing the vent temperature of the condenser in the pre-distillation tower, thereby increasing the amount of fusel oil discharged from the reflux tank of that tower; at the same time, the reflux volume in the pressure tower should also be increased accordingly