| 摘要 |
The present invention relates generally to corn dry-milling, and more specifically, to methods for producing a high protein corn meal from a whole stillage byproduct produced in a corn dry-milling process for making ethanol and a system therefore. In one embodiment, a method for producing a high protein corn meal from a whole stillage byproduct includes, in a corn dry-milling process for making ethanol, separating the whole stillage byproduct into an insoluble solids portion and a thin stillage portion. The thin stillage portion is separated into a protein portion and a water soluble solids portion. Next, the protein portion is dewatered then dried to define a high protein corn meal that includes at least 40 wt % protein on a dry basis. |
| 主权项 |
1. A system for producing high protein corn meal from a whole stillage byproduct produced via a corn dry-milling process, the system comprising:
a first apparatus selected from a filtration centrifuge, a decanter centrifuge, a pressure screen, or a paddle screen that separates the whole stillage byproduct, via constituent particle sizes, into an insoluble solids portion and a thin stillage portion, which includes protein; a second apparatus selected from a nozzle centrifuge or a cyclone apparatus that separates the thin stillage portion, via constituent weights, into a protein portion and a water soluble solids portion, which is lighter than the protein portion; a decanter centrifuge that dewaters the protein portion; and a drying apparatus that dries the dewatered protein portion to define a high protein corn meal that includes at least 40 wt % protein on a dry basis from the whole stillage byproduct produced via the corn dry-milling process. |
