MICR 221 Lecture Notes - Cell Disruption, Riboflavin, Activated Carbon
24 Jul 2013
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Document Summary
Microorganisms as agents of change (for the better: production of biofuels, chemical intermediates. Fuel ethanol: transportation fuel made from renewable feedstocks, oxygenate to improve combustion and reduce emissions. Contains more oxygen so burns cleaner, also at a lower temp. Reduces carbon monoxide and greenhouse gas emission: gasoline extender (energy independence, no longer need oil, etc. , used in 5-10% blends, as a flex fuel (e85) 85% ethanol, 15% gasoline: world ethanol production has been increasing rapidly since the 1970"s, especially to be used as fuel (as beverage has remained about the same, slight increase in industrial) Largest increase in the united states (want fuel independence: sugarn can has the best energy balance, wheat and corn the worst. Amount of energy input into the process compared to the energy released by burning the resulting product. Co2 cycle: ethanol is a clean burning fuel (leaves little contamination) Micro-aerobic conditions (concentration oxygen less than air)
