×

MANAGEMENT OF ETHANOL CONCENTRATION DURING SYNGAS FERMENTATION

  • US 20130149693A1
  • Filed: 10/25/2012
  • Published: 06/13/2013
  • Est. Priority Date: 12/12/2011
  • Status: Active Application
First Claim
Patent Images

1. A process for fermentation of syngas comprising:

  • contacting syngas with an inoculated medium having a cell density of at least about 0.1 grams per liter;

    removing cells and medium from the fermentation and separating the removed cells and medium to provide concentrated cells and permeate;

    separating ethanol from the permeate to provide ethanol and a reduced ethanol aqueous stream; and

    providing the reduced ethanol aqueous stream to the fermentation;

    wherein a ratio of a rate of providing the reduced ethanol aqueous stream to the fermentation to a rate of removing the cells and medium from the fermentation is about 0.5 to about 25.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×