Methods of higher alcohol synthesis
First Claim
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1. A method of producing liquid fuel from synthesis gas, the method comprising reacting the gas at pressures between about 500 and about 3000 psi and temperatures between about 200°
- C. and about 400°
C. over a catalyst, wherein the catalyst consists essentially of copper, zinc, and potassium on a substrate.
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Abstract
Systems, catalysts, and methods are provided for transforming carbon based material into synthetic mixed alcohol fuel.
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Citations
24 Claims
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1. A method of producing liquid fuel from synthesis gas, the method comprising reacting the gas at pressures between about 500 and about 3000 psi and temperatures between about 200°
- C. and about 400°
C. over a catalyst, wherein the catalyst consists essentially of copper, zinc, and potassium on a substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- C. and about 400°
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9. A method of producing butanol, the method comprising reacting methanol with ethanol, propanol, or mixtures thereof at pressures under 3000 psi and temperatures between about 200°
- C. and about 400°
C. using a catalyst, wherein the catalyst consists essentially of copper on hydrotalcite. - View Dependent Claims (10, 11, 12)
- C. and about 400°
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13. A method of producing a mixture of butanol, higher alcohols, and hydrocarbons from synthesis gas, the method comprising:
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(a) reacting the gas at pressures between about 500 and about 3000 psi and temperatures between about 200°
C. and about 400°
C. over a catalyst, wherein the catalyst consists essentially of copper, zinc, and potassium on a substrate, to yield a mixture of alcohols and hydrocarbons comprising methanol, ethanol, propanol and butanol, as well as other alcohols and hydrocarbons; and(b) reacting the methanol with the ethanol and/or propanol to produce butanol at pressures under 3000 psi and temperatures between about 200°
C. and about 400°
C. using a catalyst comprising copper on hydrotalcite. - View Dependent Claims (14, 15, 16, 17)
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18. A catalyst consisting essentially of copper, zinc, and potassium deposited on a substrate.
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19. A catalyst consisting essentially of copper, zinc, and potassium and at least one of cobalt and/or manganese deposited on a substrate.
- 20. A catalyst consisting essentially of copper on hydrotalcite, wherein the hydrotalcite is a strongly basic variety with a MgO to Al2O3 ratio greater than 1:
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