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从乙酸加氢而得到的粗产乙醇中提纯和/或回收乙醇。采用从粗产品乙醇混合物的分离和提纯工艺,进行回收乙醇饼去除杂质。另外,该方法包括从粗产乙醇中分离乙醛,然后返回到反应器中。US13610074
Ethanol is purified and / or recovered from crude ethanol produced by the hydrogenation of acetic acid. The ethanol cake is recovered to remove impurities using a separation and purification process from the crude ethanol mixture. In addition, the process involves the separation of acetaldehyde from the crude ethanol and then back into the reactor. US13610074