Introduction
Microorganisms that produce biofuels may be used to produce a wide array of gasoline alternatives. Higher alcohols, like isobutanol, are good candidates for alternative fuels because their energy density and octane value are similar to gasoline. Isobutanol has a high octane rating, is oxygenated, non-hygroscopic, and non-corrosive. The autotrophic microorganisms that produce isobutanol consume carbon dioxide, which makes isobutanol close to carbon neutral. This may beneficially lower greenhouse gas production.
Description of Technology
Michigan State University’s technology is a catalytic reactor for incompatible, sparingly soluble gaseous reactants. Each gas is separated into a different zone by a catalytically active third zone within the reactor. The two gases, preferably oxygen and hydrogen, are kept on different sides of a catalytically active partition zone into which each gas diffuses. This active zone contains a substance with a microorganism, Ralstonia eutropha, growing within the fibrous network. The incompatible gases are consumed by the bacteria, which keep each gas from contacting the other. Micro-bubbles are used to disperse the gas phase into the liquid phase, increasing the mass transfer rate of the incompatible gases. The solution of gasses and nutrients is pumped through the active zone, and the bacteria use these resources to produce isobutanol.
Key Benefits
Applications
Patent Status
Patent is pending
Inventors
Robert Worden, Yangmu "Chloe" Liu
Tech ID
TEC2011-0036