How to improve the methanol yield in the three-column distillation process using the double-effect method for methanol production
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How to improve the methanol yield in the three-column distillation process using the double-effect method for methanol? At our plant, the methanol yield has consistently been around 94%, which is relatively low. What is the methanol yield in your plants, dear colleagues? To ensure that the samples collected by the samplers in each tower are of satisfactory quality, the samplers remain in an active state, with methanol being sent to the underground tank. Is it appropriate to do this?
It's best to have data. What is the temperature of the methanol produced after synthesis?
The outlet temperature of the low-pressure separator is 43°C, and the pressure is 0.44 MPa.
Is there any internal leakage in the gas phase of the pressurized tower during venting, and are there any internal leaks in the heat exchangers?
Methanol is analyzed periodically in samples taken from each heat exchanger, while COD is analyzed regularly in the condensate. There was previously a leak in the water cooler of the pressure tower, but that issue has been resolved. The manual valve of the vent valve at the top of the pressurized tower is closed. Your analysis is very thorough; I wonder what the yield rate is at your company?
I also want to see what the standard is in my industry, so that I can set a achievable target based on my own capabilities