Processes for making ethanol
First Claim
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1. A process for producing ethanol, comprising:
- (a) treating distillers'"'"' grain with a hemicellulase and/or cellulase to release starch present in the distillers'"'"' grain; and
(b) using the released starch to produce ethanol.
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Accused Products
Abstract
The present invention provides improved processes for recovering components of distillers'"'"' grain, such as, the components of distillers'"'"' dried grain (DDG), for use in various applications, including in the production of ethanol.
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Citations
43 Claims
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1. A process for producing ethanol, comprising:
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(a) treating distillers'"'"' grain with a hemicellulase and/or cellulase to release starch present in the distillers'"'"' grain; and
(b) using the released starch to produce ethanol. - View Dependent Claims (2, 3, 4, 5, 12)
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6. The process of any of the proceeding claims, wherein step (b) comprises treating the starch with a starch degrading enzyme and feeding the treated starch into a liquefaction, saccharfication or fermentation process.
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7. The process of any of the proceeding claims, wherein step (b) comprises treating the starch with a raw starch degrading enzyme, and feeding the treated starch into a liquefaction, saccharfication or fermentation process.
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8. The process of any of the proceeding claims, wherein step (b) comprises treating the starch with an alpha-amylase and feeding the treated starch into a liquefaction, saccharfication or fermentation process.
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9. The process of any of the proceeding claims, wherein step (b) comprises treating the starch with a CGTase and feeding the treated starch into a liquefaction, saccharfication or fermentation process.
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10. The process of any of the proceeding claims, wherein step (b) comprises treating the starch with a glucoamylase and feeding the treated starch into a liquefaction, saccharfication or fermentation process.
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11. The process of any of the proceeding claims, wherein step (b) comprises treating the starch with an enzyme selected from the group consisting of an alpha-amylase, a CGTase, a glucoamylase, and combinations thereof and feeding the treated starch into a liquefaction, saccharfication or fermentation process.
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13. The process of any of the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' dried grain.
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14. The process of any of the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' dried grain with solubles.
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15. The process of any of the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' wet grain.
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16. A process for producing ethanol, comprising:
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(a) treating distillers'"'"' grain with a hemicellulase and/or cellulase to release protein present in the distillers'"'"' grain; and
(b) using the released protein in the ethanol production process. - View Dependent Claims (17, 18, 19, 20, 22)
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- 21. The process of any of the proceeding claims, wherein step (b) comprises treating the protein with a protease and feeding the protease treated protein into a liquefaction, saccharification or fermentation process.
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24. The process of any of the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' dried grain.
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25. The process of any of the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' dried grain with solubles.
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26. The process of any the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' wet grain.
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27. A process for producing ethanol, comprising:
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(a) treating distillers'"'"' grain with a hemicellulase and/or cellulase to release starch and protein present in the distillers'"'"' grain; and
(b) using the released starch and protein to produce ethanol. - View Dependent Claims (28, 29, 30, 31)
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- 32. The process of any of the proceeding claims, wherein step (b) comprises treating the starch with an alpha-amylase and treating the protein with a protease, and feeding the treated starch and treated protein into a liquefaction, saccharfication or fermentation process.
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34. The process of any of the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' dried grain.
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35. The process of any of the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' dried grain with solubles.
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36. The process of any of the proceeding claims, wherein the distillers'"'"' grain is distillers'"'"' wet grain.
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37. A process for producing ethanol, comprising:
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(a) pre-treating distillers'"'"' grain with a chemical treatment and/or a mechanical treatment to release starch and protein present in distillers'"'"' grain;
(b) treating the chemically and/or mechanically treated distillers'"'"' grain with a hemicellulase and/or cellulase to further release of starch and protein from distillers'"'"' grain;
(c) treating the released starch and protein with a starch degrading enzyme and a protease; and
(d) feeding the treated starch and protein into and ethanol production process.
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38. Use of distillers'"'"' grain in making ethanol.
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39. Use of distillers'"'"' dried grain in making ethanol.
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40. Use of distillers'"'"' dried grain with solubles in making ethanol.
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41. Use of distillers'"'"' wet grain in making ethanol.
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42. Use of starch present in distillers'"'"' grain in making ethanol.
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43. Use of protein present in distillers'"'"' grain in making ethanol.
Specification