Production of high solids syrup from lignocellulosic biomass hydrolysate fermentation broth
First Claim
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1. A syrup comprising at least about 40% solids by weight and having a viscosity that is less than about 100 centipoise, and derived from stillage comprising less than about 0.1% suspended solids;
- wherein the syrup is the product of evaporation of the liquid fraction from a liquid/solid separation of lignocellulosic biomass hydrolysate fermentation broth or product depleted lignocellulosic biomass hydrolysate fermentation broth.
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Abstract
Lignocellulosic biomass hydrolysate fermentation broth may be processed to produce a high solids syrup having relatively low viscosity that has a high energy content and may be burned in a fermentation production process. The high solids syrup was achieved through liquid/solid separation of broth or depleted broth producing a thin stillage with low suspended solids allowing evaporation to high solids while maintaining low viscosity.
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Citations
15 Claims
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1. A syrup comprising at least about 40% solids by weight and having a viscosity that is less than about 100 centipoise, and derived from stillage comprising less than about 0.1% suspended solids;
- wherein the syrup is the product of evaporation of the liquid fraction from a liquid/solid separation of lignocellulosic biomass hydrolysate fermentation broth or product depleted lignocellulosic biomass hydrolysate fermentation broth.
- View Dependent Claims (2, 3, 4, 5, 6)
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7. A process for the production of a target product comprising:
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a) providing a lignocellulosic biomass hydrolysate fermentation broth comprising a target product; b) removing the target product from the lignocellulosic biomass hydrolysate fermentation broth of (a) by distillation to produce whole stillage; c) separating liquid and solid fractions from the whole stillage of (b) to produce a thin stillage comprising less than about 0.1% suspended solids by weight; and d) evaporating the thin stillage of (c) to produce a syrup comprising at least about 40% solids by weight and having a viscosity that is less than about 100 centipoise. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification