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US 9,410,098 B2Granted
Process for making isooctenes from aqueous isobutanol
AssigneeBitamax Advanced Biofuels LLC
InventorsMichael B D'Amore, Leo Ernest Manzer, Edward S Miller, Jr., Jeffrey P Knapp
Life of this patent
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Abstract
The present invention relates to a catalytic process for making isooctenes using a reactant comprising isobutanol and water. The isooctenes so produced are useful for the production of fuel additives.
Claims17
A process for production of gasoline, diesel fuel, jet fuel, or transportation fuel additive comprising:
- producing isobutanol from a feedstock derived from a renewable source by a genetically modified microorganism via a biosynthetic pathway comprising substrate to product conversions that include:
- pyruvate to acetolactate;
- acetolactate to 2,3-dihydroxyisovalerate;
- 2,3-dihydroxyisovalerate to α-ketoisovalerate;
- α-ketoisovalerate to isobutyraldehyde;
- and
- isobutyraldehyde to the isobutanol;
- and
- reacting the isobutanol to produce an intermediate for the production of gasoline, diesel fuel, jet fuel, or transportation fuel additive.
6 more elements
A process for production of gasoline, diesel fuel, jet fuel, or transportation fuel additive comprising:
- obtaining isobutanol that is essentially free of ethanol and is produced by a genetically modified microorganism via a biosynthetic pathway that implements a fermentation broth, the biosynthetic pathway comprising:
- pyruvate to acetolactate;
- acetolactate to 2,3-dihydroxyisovalerate;
- 2,3-dihydroxyisovalerate to α-ketoisovalerate;
- α-ketoisovalerate to isobutyraldehyde;
- and
- isobutyraldehyde to the isobutanol;
- and
- contacting the isobutanol with an acid catalyst to produce an intermediate for the production of gasoline, diesel fuel, jet fuel, or transportation fuel additive.
6 more elements
Dependencies are inferred from the claim text.