E85 Fuel

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News: Union Petroleum and Natural Gas Minister recently launched the “E85 fuel” at a retail fuel outlet in New Delhi.

About E85 Fuel

E85 Fuel
Source: Outlook
  • E85  is a high-ethanol blended fuel comprising 80-85% ethanol and 14-19% petrol.
  • Difference between standard E20 petrol and E85:
    • Composition: The standard E20 petrol contains up to 20% ethanol mixed with 80% conventional petrol. E85 fuel contains a mix of 80%-85% ethanol blended with 14% to 19% petrol.
    • Price: E85 is nearly Rs 20 per litre cheaper than conventional petrol to ensure that the economic benefits of domestically produced ethanol are passed on to consumers.
  • Use: E85 is engineered exclusively for specialised flex-fuel vehicles, or FFVs.
    • Note: Regular petrol vehicles cannot use E85 fuel.
  • Advantages:
    • Environmental impact:  FFVs operating on E85 can reduce lifecycle greenhouse gas emissions by around 61% compared with conventional petrol vehicles.
      • Ethanol-based FFVs, including vehicles running on high ethanol blends such as E85, have been classified as zero-emission vehicles by Niti Aayog. 
      • E85 fuel also produces near-zero particulate matter emissions, making FFVs a promising solution for addressing the country’s growing air pollution challenge.
    • Its use will also boost farmers’ income, reduce dependence on crude oil imports, and strengthen the country’s energy security. 

About Ethanol

  • Ethanol is an anhydrous ethyl alcohol having chemical formula of C2H5OH.
  • Source: It can be produced from sugarcane, maize, wheat, etc. which are having high starch content.
  • In India, ethanol is mainly produced from sugarcane molasses by fermentation process.
  • Ethanol can be mixed with gasoline to form different blends.
  • As the ethanol molecule contains oxygen, it allows the engine to more completely combust the fuel, resulting in fewer emissions and thereby reducing the occurrence of environmental pollution.
  • Since ethanol is produced from plants that harness the power of the sun, ethanol is also considered as renewable fuel.
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