Biofuels and Bioenergy

Bioalcohols and Bioethanol

Biologically synthesized alcohols, most frequently ethanol, and rarely propanol and butanol, are formed by the reaction of microorganisms and enzymes through the fermentation of sugars or starches, or cellulose. Biobutanol also called biogasoline is often asserted to provide a direct stand-in for gasoline because it can be used precisely in a gasoline engine. Ethanol fuel is the most widely used biofuel worldwide. Alcohol fuels are formed by fermentation of sugars derived from wheat, sugar beets, corn, molasses, sugar cane and any sugar or starch from which alcoholic liquors such as whiskey, can be produced (such as potato and fruit waste, etc.). The ethanol manufacturing methods applied are enzyme digestion (to release sugars from stored starches), distillation, fermentation of the sugars and drying. Ethanol can be used in petrol engines as a substitute for gasoline; it can be blended with gasoline to any concentration.

• Bioalcohols as automobile fuel
• Bioethanol utilization
• Bioethanol Economics