Oil recovery aid
AssigneesPolymer Ventures, Inc., Phibro Animal Health Corporation
InventorsChristopher B Murphy, David A Fowlie
Life of this patent
Estimating the term…
Abstract
Compositions for increasing corn oil recovery and embodiments of methods for using the composition for corn oil separation are described. The composition(s) incorporate an admixture that includes a polymer selected from a polyglycol ester, a polyethyleneoxide-polypropyleneoxide block copolymer, a poloxamine, or a mixture thereof. The methods include admixing the compositions with a process stream for, for example, the extraction of oil from milled corn and residues from a fermentation step, including stillage (e.g., thin stillage or mid stillage), distiller's wet grain, distiller's dry grain and distiller's dry grains with solubles.
Claims14
A method comprising:
- adding a recovery aid to a corn-to-ethanol process stream, wherein the recovery aid comprises a polymer selected from a polyethyleneoxide-polypropyleneoxide block copolymer, a poloxamine, and a mixture thereof;
- and a salt selected from aluminum sulfate salt, an alkali metal halide salt, an alkaline earth halide salt, a pyrophosphate salt, a phosphate salt, a carbonate salt, a citrate salt, an ammonium salt, a ferric salt, a ferrous salt, or a mixture thereof.
A method comprising:
- adding a 10 ppm to about 5000 ppm of a recovery aid to a corn-to-ethanol process stream, based on the weight of the process stream;
- wherein the recovery aid consists of
- a polymer selected from a polyglycol ester, a polyethyleneoxide-polypropyleneoxide block copolymers, a poloxamine, or a mixture thereof;
- an additive selected from a nucleant, a salt, and a mixture thereof, the nucleant selected from precipitated silica, fumed silica, hydrophobic silica, or a mixture thereof;
- and
- a viscosity modifier selected from water, glycerol, propylene glycol, a non-esterified glycolate homopolymer, or a mixture thereof;
- the recovery aid having a ratio of the polymer to the additive of about 5:1 to about 100:1.
A method comprising:
- adding a recovery aid to a corn-to-ethanol process stream,
- the recovery aid consisting essentially of a polymer selected from a polyglycol ester, a polyethyleneoxide-polypropyleneoxide block copolymer, a poloxamine, or a mixture thereof;
- a nucleant selected from precipitated silica, fumed silica, hydrophobic silica, or a mixture thereof;
- and a viscosity modifier selected from water, glycerol, propylene glycol, a non-esterified glycolate homopolymer, or a mixture thereof.
Dependencies are inferred from the claim text.