×

Renewable jet fuel blendstock from isobutanol

  • US 8,373,012 B2
  • Filed: 05/09/2011
  • Issued: 02/12/2013
  • Est. Priority Date: 05/07/2010
  • Status: Expired due to Fees
First Claim
Patent Images

1. A process for preparing renewable jet fuel blendstock comprising:

  • (a) treating biomass to form a feedstock;

    (b) fermenting the feedstock with one or more species of microorganism, thereby forming isobutanol;

    (c) dehydrating at least a portion of the isobutanol obtained in step (b), thereby forming a dehydration product comprising isobutene;

    (d) oligomerizing at least a portion of the dehydration product, thereby forming a product comprising one or more C8, one or more C12, and one or more C16 unsaturated oligomers; and

    (e) hydrogenating at least a portion of the product of step (d) in the presence of hydrogen, thereby forming a renewable jet fuel blendstock comprising one or more C12 and one or more C16 saturated alkanes;

    (f) adjusting the ratio of C12 and C16 saturated alkanes provided by step (e) to form a renewable jet fuel blendstock which meets or exceeds the requirements of ASTM D7566-10a for hydroprocessed synthesized paraffinic kerosene (SPK).

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