What is the residue at the bottom of the pre-column in the three-column process for pure methanol?
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I am working on a graduation project. The crude methanol contains 90.82% methanol, 0.21% dimethyl ether, 2.23% carbon dioxide, 6.48% water, with the remainder being other alcohols. The temperature at the top of the tower is 70 degrees, while the temperature at the bottom of the tower is 75.8 degrees. Could you please tell me what the residue in the bottom of the tower would be and what its approximate concentration is? Thank you very much
The residue at the bottom of the tower is an aqueous solution of methanol, while dimethyl ether and carbon dioxide are released from the top of the tower. Just subtract the contents of dimethyl ether and carbon dioxide; the methanol content is 93.15%, with the remainder being water.