Patent ID: 11788038

Abstract:
The present invention relates generally to corn dry-milling, and more specifically, to a method and system for removing insoluble solids mid-evaporation in a corn (or similar carbohydrate-containing grain) dry milling process for making alcohol, such as ethanol, and/or other biofuels/biochemicals. In one example, the method for removing residual insoluble solids in a grain dry milling process includes separating a whole stillage byproduct into an insoluble solids portion and a solubles portion, which includes residual insoluble solids. Then, the solubles portion is subjected to a first evaporation, via one or more evaporators, to remove liquid from the solubles portion to define a concentrated solubles portion. After the first evaporation, the residual insoluble solids are separated from the concentrated solubles portion. And thereafter, the concentrated solubles portion is subjected to a second evaporation, via one or more evaporators, to remove additional liquid from the concentrated solubles portion.