Unit Three: Biofuels Flashcards
1
Q
How can fuels be made?
A
By fermentation of natural products
2
Q
What is fermentation?
A
When bacteria or yeast break down sugars by anaerobic respiration
3
Q
How is ethanol made?
A
By anaerobic fermentation of sugar:
glucose—>ethanol + carbon dioxide + energy
4
Q
How is biogas made?
A
By anaerobic fermentation of waste material
5
Q
Two biogas generators:
A
Batch generators and continuous generators