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Process for recovery of values from a fermentation mass obtained in producing ethanol and products thereof

  • US 8,956,460 B2
  • Filed: 05/04/2011
  • Issued: 02/17/2015
  • Est. Priority Date: 05/07/2010
  • Status: Expired due to Fees
First Claim
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1. A process for the recovery of values from a fermentation mass obtained in producing ethanol, the fermentation mass comprising ethanol and an aqueous medium having a solids component suspended therein, the process comprising:

  • hydrolyzing biomass feedstock to produce treated biomass comprising fermentable sugars,fermenting the treated biomass to form the fermentation mass, andclassifying the solids component of the fermentation mass to recover a solids fraction enriched in carbohydrates relative to the carbohydrate content of the solids component of the fermentation mass and a crude aqueous lignin slurry fraction comprising a solids component enriched in lignin relative to the lignin content of the solids fraction enriched in carbohydrates.

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