Process for producing volatile organic compounds from biomass material

  • US 9,359,557 B2
  • Filed: 05/16/2013
  • Issued: 06/07/2016
  • Est. Priority Date: 05/17/2012
  • Status: Active Grant
First Claim
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1. A method for producing ethanol comprising:

  • generating at least about 10 tons of prepared biomass material comprising at least one additive added to a lignocellulosic biomass comprising a sugar, wherein said at least one additive comprises a microbe, an acid, and/or an enzyme;

    storing the prepared biomass material for at least about 24 hours in a storage facility to generate a stored, prepared biomass material having about 2 wt % to about 50 wt % ethanol;

    introducing the stored, prepared biomass material to a pressurized compartment of a recovery system;

    contacting the stored, prepared biomass material with a superheated vapor stream in the pressurized compartment to vaporize at least a portion of the ethanol in the stored, prepared biomass material to provide at least a portion of a vapor component;

    retaining an amount of the vapor component in the recovery system for use as at least part of the superheated vapor stream;

    providing another amount of the vapor component to a distillation unit and releasing from the system at least a portion of the stored, prepared biomass material after vaporization to provide a solid component.

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