Ethanol Production India
Kartavya Desk Staff
Syllabus: Biofuel
Source: TH
Context: Union Minister of Road Transport & Highways said that India will achieve its target of 20% ethanol blending of petrol in the next two months, at least a year ahead of what was originally planned.
• The government has expanded ethanol production capacity to 1,600 crore litres, with maize emerging as a crucial feedstock.
Ethanol Fuel Production
What is Ethanol Fuel?
• Ethanol is a renewable biofuel derived from sugarcane, grains, and other biomass.
• It is blended with petrol to reduce crude oil dependency, lower emissions, and promote energy security.
How is Ethanol Produced?
• Fermentation: Sugars from sugarcane juice, molasses, grains (maize, rice, jowar, bajra, millets) are fermented using yeast.
• Distillation: Ethanol is separated from the fermented mixture and purified.
• Dehydration: Water is removed to produce anhydrous ethanol for blending with petrol.
• Blending: Mixed with petrol at 5%, 10%, or 20% (E5, E10, E20) ratios.
Current Status of Ethanol Production in India:
• Ethanol blending reached 15% in 2024, targeting 20% (E20) by 2025.
• Ethanol distillery capacity expanded to 1,600 crore litres, aiming for 1,700 crore litres by 2025.
• Sugar-based ethanol contributes 400 crore litres, grain-based ethanol (maize, rice) contributes 700 crore litres.
Challenges in Ethanol Production:
• Feedstock Availability: Dependence on sugarcane and grains risks affecting food security.
• Water-Intensive Crops: Sugarcane and rice require high water usage, raising sustainability concerns.
• Infrastructure Gaps: Limited ethanol storage and blending infrastructure in many states.
• Logistics & Transportation: Interstate ethanol movement faces regulatory hurdles.
• Economic Viability: High production costs and fluctuating raw material prices impact profitability.
Role of Maize in Ethanol Production:
· Maize contributes nearly 400 crore litres of ethanol, a significant increase from near-zero in 2020.
· Maize-based ethanol is more sustainable than sugarcane due to lower water consumption.
· Government promoting maize cultivation, leading to a 10% increase in maize farming area.
· Distiller’s Dried Grains with Soluble (DDGS), a byproduct of maize ethanol, is used as poultry feed, balancing food security.
Way Ahead for Ethanol Production:
• Diversifying Feedstock: Increase use of damaged grains, agricultural waste, and lignocellulosic biomass.
• Infrastructure Development: Expand ethanol blending depots and storage across India.
• R&D in Advanced Biofuels: Invest in 2G and 3G biofuels for sustainable ethanol production.
• Policy Reforms: Streamline state-level ethanol movement and ensure stable pricing.
• Farmer Incentives: Promote crop diversification and support for ethanol-producing farmers.
Conclusion:
India’s ethanol push is a major step towards energy security, reduced oil imports, and sustainable fuel use. However, challenges related to feedstock availability, infrastructure, and economic feasibility need strategic policy interventions. A balanced approach with maize, sugarcane, and advanced biofuels will ensure a resilient ethanol economy.
Insta Links:
• Ethanol-blending-program
• Do you think India will meet 50 percent of its energy needs from renewable energy by 2030? Justify your answer. How will the shift of subsidies from fossil fuels to renewables help achieve the above objective? Explain. (UPSC-2022)