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Processes and systems for the production of alcohols

  • US 9,523,104 B2
  • Filed: 03/11/2014
  • Issued: 12/20/2016
  • Est. Priority Date: 03/12/2013
  • Status: Active Grant
First Claim
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1. A method for producing product alcohol comprising:

  • providing a feedstock slurry comprising fermentable carbon source, undissolved solids, and oil;

    separating at least a portion of the feedstock slurry forming (i) an aqueous solution comprising fermentable carbon source, (ii) a wet cake comprising solids, and (iii) an oil stream;

    wherein the step of separating at least a portion of the feedstock slurry includes using a three-phase centrifuge to separate the feedstock slurry;

    returning at least a portion of the oil stream to the three-phase centrifuge; and

    adding the aqueous solution to a fermentation broth comprising microorganisms in a fermentor whereby a product alcohol is produced.

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