The problem of cyclic methanol dehydration
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The shift gas entering the methanol wash contains a certain amount of moisture, and water poses a significant threat to the system. When present in the methanol solution, it reduces methanol’s ability to absorb CO and H2S. What are the main methods for solving the problem of cyclic methanol dehydration during production operations?
This post was last edited by 654262293 on 2015-8-12 at 16:00. Control the temperature of the feed gas entering the methanol wash tower as well as the liquid level in the methanol-water separator; once that is done, the methanol-water separator is ready for use.
It is necessary to control the temperature of the transformed gas entering the methanol wash at around 35 degrees; the amount of methanol sprayed also needs to be maintained properly. Additionally, careful operation of the methanol-water separation tower is required.
Everything said upstairs is correct; the most important thing is to operate the methanol-water separation tower at full capacity to ensure an effective dehydration process and the appropriate amount of methanol to be dehydrated
Temperature of the transformed gas, liquid level in the liquid separation tank, load of the methanol-water separation tower
The main thing is to properly control the load of the methanol-water separation tower
Use an efficient separator, preferably with two to three stages of separation, to ensure good separation results.
The temperature of the methanol water tower needs to be well controlled
How about molecular sieves? I’ve only heard it mentioned
Temperatures at the bottom and top of the methanol-water separation tower
Control the temperature of the methanol-water separation tower. Controlling the temperature at the top of the tower controls the water content in methanol, while controlling the temperature at the bottom of the tower controls the methanol content in the wastewater.