General definition
A renewable fuel for diesel engines derived
from natural oils such as soybean oil
Technical definition
A fuel composed of mono-alkyl esters of long
chain fatty acids derived from vegetable oils
or animal fats
Plant oil:
Now used: rapeseed, soybean, palm
New sources: sunflower, canola, mustard, coconut
Non-food: jatropha, copaiba, honge, jojoba
Waste v
Ⅱ바이오에탄올(Bioethanol)
1) 바이오에탄올의 정의
당의 고분자인 당질계, 전분질계 또는 섬유소계 바이오매스를 원료로 생물공정에 의해 바이오에탄올을 생산함.
2)바이오매스의 장단점
장점
단점
일반 대중에 잘 알려져 있으며 독성이 적다.
현재 기술로는 가격이 비싸다.
유기 배출물의 반
Abstract
Bioethanol is one ofthe alternative sources of oil resources which received attention with biodiesel. Many countries produce bioethanol from food sources such as corn and sugarcane, but it causes food-energy conflicts and farmland problem. So it needs to focus on new biomass which is sustainable, renewable, cost-effective and do not occurred any conflicts. Algae are one ofthe bioma
1. Measured 20g of water-dry soil
2. Prepared one bottle and put the measured soil in that bottle
3. inject toluene(100ppm, 20ml) in #2 to contamination
4. Close the entrance ofthe bottle with teflon film and shake bottle more than 24 hours
5. After 24 hours inject methanol, hexane(each 20ml)
6. Shake #5 bottle in 2 minutes and let that sinking
7. Centrifugation that sample and get the sup
② Its evolution(past) and/or how the technology is moving or is expected to evolve
- Kim Sung Min
Ethanol is nowadays an important product in the fuel market. Its market grew from less than a billion liters in 1975 to more than 39billion liters in 2006 and is expected to reach 100 billion liters in 2015. Less than 4% ofthe ethanol is produced synthetically from oil, while the rest is produ