Method for improving corn oil extraction using alkyl polyglycosides
Methods are provided for recovering oil from a process stream mixture in a corn to ethanol process. The method comprises adding an oil separation aid to the process stream wherein the oil separation aid is an alkyl polyglycoside (APG).
1. A method for recovering oil in a corn to ethanol process wherein oil and solids are present in a process stream mixture, said method comprising adding to said process stream mixture an oil separation aid, said oil separation aid comprising a glucoside or mixture of glucosides chosen from the group consisting of caprylyl glucoside, decyl glucoside, undecyl glucoside, lauryl glucoside, myristyl glucoside, hexadecyl d-glucoside, octadecyl d-glucoside, arachidyl glucoside, caprylyl/capryl glucoside, C 8-16 alkyl glucoside, C 10-16 alkyl glucoside, C 12-16 alkyl glucoside, C 12-20 alkyl glucoside, cetaryl glucoside, C 20-22 alkyl glucoside, coco glucoside, isostearyl glucoside, octyldodecyl glucoside.
2. A method as recited in claim 1 wherein said process stream mixture is present in a whole stillage process stream, a thin stillage process stream, in an evaporator, in a syrup stream, or in feed or make up water to a corn to ethanol fermentation process.
3. A method as recited in claim 1 wherein about 1 to about 5,000 ppm of said oil separation aid are added to said process stream based upon one million parts of said process stream mixture.
4. A method as recited in claim 3 wherein about 100 to about 2500 ppm of said oil separation aid are added.
5. A method as recited in claim 3 wherein about 250 to about 1250 ppm of said oil separation aid are added.
6. A method as recited in claim 1 wherein said glucoside is caprylyl glucoside.
7. A method as recited in claim 1 wherein said glucoside is decyl glucoside.
8. A method as recited in claim 1 wherein said glucoside is undecyl glucoside.
9. A method as recited in claim 1 wherein said glucoside is lauryl glucoside.
10. A method as recited in claim 1 wherein said glucoside is myristyl glucoside.
11. A method as recited in claim 1 wherein said glucoside is hexadecyl d-glucoside.
12. A method as recited in claim 1 wherein said glucoside is octadecyl d-glucoside.
13. A method as recited in claim 1 wherein said glucoside is arachidyl glucoside.
14. A method as recited in claim 1 wherein said glucoside is caprylyl/caryl glucoside.
15. A method as recited in claim 1 wherein said glucoside is C 8-16 alkyl glucoside.
16. A method as recited in claim 1 wherein said glucoside is C 10-16 alkyl glucoside.
17. A method as recited in claim 1 wherein said glucoside is C 12-16 alkyl glucoside.
18. A method as recited in claim 1 wherein said glucoside is C 12-20 glucoside.
19. A method as recited in claim 1 wherein said glucoside is cetaryl glucoside.
20. A method as recited in claim 1 wherein said glucoside is C 20-22 alkyl glucoside.
21. A method as recited in claim 1 wherein said glucoside is coco glucoside.
22. A method as recited in claim 1 wherein said glucoside is isostearyl glucoside.
23. A method as recited in claim 1 wherein said glucoside is octyldodecyl glucoside.