08/08/26 Sat 7:56am
Alternative Fuels
Ethanol:
- It is an Alcohol fuel.
- It is a renewable energy resources.
- Made by fermenting from a variety of starch based feedstock such as sugar cane, potatoes, sweet potatoes, molasses, corn, cassava, etc..
- Also called ethanol or ethyl alcohol can be used as a fuel when blended with gasoline.
- Blending ratio - E10, E15, E85.
- 30-50% smog forming is reduced than a gasoline vehicle.
- Air toxics are also reduced by about 50% when compared to gasoline.
Production
- Ethanol is produced from biomass mostly via fermentation process using glucose.
- Glucose is a simple sugar with molecular formula :
- Derived from sugars, starch, cellulose.
Fermentation:
Step 1: Pre-treatment process
- Process starts by Grinding up the feed