×

Renewable jet fuel blendstock from isobutanol

  • US 8,975,461 B2
  • Filed: 02/11/2013
  • Issued: 03/10/2015
  • Est. Priority Date: 05/07/2010
  • Status: Active Grant
First Claim
Patent Images

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

  • (a) dehydrating renewable isobutanol, thereby forming a dehydration product comprising isobutene;

    (b) 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;

    (c) separating at least a portion of said one or more C8 unsaturated oligomers produced in step (b);

    (d) combining the separated portion of step (cc) with the dehydration product of step (b) prior to said oligomerization step (b);

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

    (f) adjusting the ratio of C12 and C16 saturated alkanes provided by step (ge) 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
    ×
    ×