Systems and methods for stillage fractionation
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United States of America Patent
Stats
-
Feb 20, 2024
Grant Date -
Jul 15, 2021
app pub date -
Mar 31, 2021
filing date -
Apr 18, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Systems and methods for fractionating whole stillage from an ethanol production facility are provided. Whole stillage undergoes a separation of its liquid portion (thin stillage) from the solid portion (fiber cake). In some embodiments, the solids and liquids in whole stillage may be separated utilizing a screening centrifuge. The fiber cake may be dried to generate a high fiber animal feed. The thin stillage may be provided to a three-phase separator for separation into an oil emulsion, an aqueous clarified stillage, and a protein paste. The protein paste may be dried to generate a high protein animal feed with greater than about 45% protein content. The clarified thin stillage is condensed to yield a syrup with greater than around 60% solids. The oil emulsion is subjected to a pH adjustment to liberate the oil from the emulsion, which is then separated.
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International Classification(s)
- 2021 Application Filing Year
- C11B Class
- 174 Applications Filed
- 45 Patents Issued To-Date
- 25.87 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C11B Class
- 0 % this patent is cited more than
- 1 Age
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