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本发明涉及到生产水流的过程,过程包括加氢醋酸生成粗乙醇产品和至少部分粗乙醇产品在多元塔的至少一台塔上分离出含乙醇的馏出物和含水流的残留物。优先要求水流基本不含除醋酸和乙醇外
The present invention relates to a process for producing a water stream which process comprises producing hydrogenated acetic acid to produce a crude ethanol product and at least a portion of the crude ethanol product to separate the ethanol-containing distillate and the aqueous stream residue from at least one of the towers of the multiple column. Priority is given to the basic flow of water except acetic acid and ethanol