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US 9,562,720 B2Granted
Methods for desolventization of bagasse
AssigneeBridgestone Corporation
InventorsYingyi Huang, Mark W. Smale, William M. Cole
Life of this patent
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Abstract
Provided herein are methods for the removal of organic solvents from wet bagasse. The use of the methods result in dried bagasse that contains no more than 1 weight percent organic solvents.
Claims20
A method for removing organic solvents from wet bagasse comprising:
- utilizing a quantity of wet bagasse that contains up to 45 weight % combined organic solvents and water (based upon the total weight of the wet bagasse) and no more than 0.1 weight % rubber;
- heating the wet bagasse to a temperature of at least 100° C. whereby the organic solvents are evaporated;
- producing dried bagasse that contains no more than 1 weight % organic solvents.
A method for removing organic solvents from wet guayule bagasse comprising:
- utilizing a quantity of wet guayule bagasse that contains up to 45 weight % combined organic solvents and water (based upon the total weight of the wet bagasse) and no more than 0.1 weight % rubber;
- heating the wet guayule bagasse to a temperature of at least 100° C. whereby the organic solvents are evaporated;
- producing dried guayule bagasse that contains no more than 1 weight % organic solvents,
- wherein the heating takes place in an apparatus selected from the following:
- i. a dryer containing multiple layers, circulating heated air through the layers of the apparatus and passing the wet guayule bagasse from one layer to another whereby the organic solvents are evaporated;
- ii. a dryer containing multiple paddles for mixing the wet guayule bagasse with heated air to evaporate the organic solvent;
- or
- iii. a desolventization screw extruder, producing dried guayule bagasse that contains no more than 1 weight % organic solvents.
5 more elements
Dependencies are inferred from the claim text.