How to deal with non-condensable gas in the deetherning tower during methanol distillation!
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The company currently has a 500,000-ton methanol project. The non-condensable gas at the top of the deetherization tower used to be burned in an acid removal torch, but due to corrosion of the pipeline, it is currently vented on site. But the place smells! Ask everyone how they deal with it.
Corrosion solves the problem of corrosion, don’t make it too complicated
The non-condensable gases are mainly CO2, methanol, and dimethyl ether. The odor you mentioned is mainly methanol. I see that you have a water washing tower before venting. Make good use of the water washing tower to remove as much methanol as possible. In this way, the remaining CO2 can be introduced into the decarbonization unit of the main device. If corrosion occurs, stainless steel pipes can be used. According to your production, the amount of non-condensable gas is about 1000m³.