Process for recovering ethanol with sidedraws to regulate C₃₊ alcohols concentrations

摘要

Purification and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of a crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, the process involves one or more sidedraws to regulate C₃+ alcohols concentration in the recovered ethanol.