Method and system for removing insoluble solids mid-evaporation from a corn dry milling process
US11788038B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2020 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Jan 20, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2221/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.