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INDIRECT PRODUCTION OF BUTANOL AND HEXANOL

  • US 20090203098A1
  • Filed: 02/09/2009
  • Published: 08/13/2009
  • Est. Priority Date: 02/07/2008
  • Status: Active Grant
First Claim
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1. A method to produce butanol and hexanol, comprising:

  • (a) conducting a homoacetogenic fermentation in a medium comprising a carbohydrate source to produce acetate, acetic acid or mixtures thereof;

    (b) chemically converting a portion of the acetate, acetic acid or mixtures thereof to ethanol;

    (c) conducting an acidogenic fermentation in a medium comprising the ethanol and a portion of the acetate, acetic acid or mixtures thereof to produce butyrate, butyric acid, caproate, caproic acid or mixtures thereof; and

    (d) chemically converting the butyrate, butyric acid, caproate, caproic acid or mixtures thereof to the butanol and hexanol.

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