In a liquid stream capture process for extracting various components in a
dry mill ethanol process, a converted mash is separated into
sugars/carbohydrates and corn residue by rinsing the converted mash with
a dilute solvent stream and, after the sugars/carbohydrates have been
separated, oils and proteins are extracted from the corn residue by
rinsing the corn residue with a concentrated solvent stream. The dilute
solvent stream is a mixture of ethanol and water, and the concentrated
solvent stream is pure ethanol.