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US 7,078,201 B2Granted
Ethanol fermentation using oxidation reduction potential
OwnerBrian M. Burmasterinventor
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Abstract
A process to improve ethanol yield, decrease fermentation time and reduce byproduct formation by monitoring and controlling oxidation reduction potential (redox) of the fermentor is disclosed.
Claims5
A process for efficiently producing ethanol through application of anaerobic fermentation comprising:
- a. providing a closed vessel having both an inlet and outlet, and at least one feed inlet for introducing of fermentable mash into the vessel;
- b. said fermentable mash having a percentage of ingredients selected from the group including at least one of corn, milo, barley, wheat, oats, sugar cane, and molasses;
- c. said fermentable mash including water in an amount between about 55% to 90% by weight;
- d. adding an enzyme into the mash-water mixture to initiate the enzymatic breakdown of the starch content of the mash;
- e. adding a yeast into the mixture to further initiate the fermentation process;
- f. aerating the fermenting mash in the vessel through the addition of pressurized air or oxygen into the contained mash;
- g. continuing the aeration of the aqueous mash solution in the closed vessel and determining the oxidation-reduction potential of the fermenting mash and maintaining a voltage potential between about −250 millivolts to +50 millivolts to attain the most efficient fermentation of the mash to achieve the maximum ethanol yield.
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Dependencies are inferred from the claim text.