Advantages & Disadvantages of Fuel Ethanol


Advantages:
  • The exhaust of ethanol is much cleaner and burns cleaner.
  • Using ethanol-blended fuels such as E85 (85% ethanol, 15% gasoline) can reduce net greenhouse gas emissions by 37.1%. This is a significant amount.
  • Positive energy balance - can vary from 1.24 to 8 depending on the stock type of raw material. Energy production during production is above input. (Controversial)
  • Any plant can be used to produce bio-ethanol. You only need to include sugar and starch. The best choice is sugarcane, but potatoes, barley, wheat, etc. can also be used.
  • It is carbon neutral. That is, the carbon dioxide released from the bioethanol the production process is the same amount as the previously absorbed crops during photosynthesis.
  • Ethanol-blended fuels such as E10 (10% ethanol, 90% gasoline) reduce greenhouse gases by up to 3.9%.
  • The net effect of using ethanol leads to an overall reduction in ozone formation, an important environmental problem. (Exhaust Gases produced by ethanol combustion are less likely to form damaged ozone because they are less responsive to sunlight than those produced by burning gasoline.
Disadvantages:
  • Biodiversity - Many cultivated lands are needed to grow crops. This allows you to see the natural habitat destroyed, including the rainforest.
  • Food Fuel Controversy - There is a concern that the favorable price of bioethanol may cause some farmers to raise food prices around the world at the cost of food crops to produce biofuels.
  • Carbon Emissions - There is a debate about the neutrality of bioethanol when all factors are taken into account, including land-use changes in the region, transportation and the cost of combustion of crops.
  • In the production of bioethanol, a huge amount of carbon dioxide is emitted, resulting in a zero ecological effect.
  • Ethanol production is filled with greenhouse gases (GHG). It is similar to the emissions of internal combustion engines.
Read more about fuel ethanol plant.

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