Lecture 8 Flashcards
1
Q
The making of ethanol from starch-laden products (e.g., wheat or corn)
A
- Step1–Raw material starch (from wheat or corn kernels) are ground in a hammer mill.
- Step2–Convert starch to sugar using acids.
- Step3–Yeast is added to ferment the sugars to ethanol.
- Step4–The ethanol is separated from the mixture by distillation.
2
Q
Cellulosic Ethanol
A
Made from a wide array of plant residues and other plant biomass.
3
Q
Biodiesel
A
Can be made from oil seed, waste vegetable oil, animal fats or algae.
4
Q
Transesterification
A
Production of liquid biofuels requires inputs of fossil fuels and also impacts land and water use.
5
Q
Cellulose crops
A
By-products such as a straw, or wood can be used as solid fuel crops in ethanol production.
6
Q
Strarch and sugar crops
A
Potato, sugar beet, sugar cane, etc…
7
Q
Cereals
A
Barley, Oats, Maize (corn), ad rye.
The grain can b fused to produce bio-alcohols and the straw can be used as a solid fuel.
