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Context:
Prime Minister Narendra Modi inaugurated the country’s first bamboo-based bioethanol plant in Golaghat, Assam, and laid the foundation stone for a ₹7,230-crore polypropylene plant at the Numaligarh Refinery. The initiative is part of India’s broader push for energy self-sufficiency, clean energy, and rural development.
What is a Bamboo-Based Bioethanol Plant?
A bamboo-based bioethanol plant is an industrial facility that converts bamboo into ethanol, a type of biofuel that can be blended with petrol or used as a renewable energy source.
Process:
- Feedstock Collection: Bamboo is harvested and transported to the plant.
- Pretreatment: Bamboo biomass is broken down into simpler components, mainly cellulose, hemicellulose, and lignin.
- Hydrolysis: Cellulose and hemicellulose are converted into fermentable sugars using enzymes or acids.
- Fermentation: Microorganisms (like yeast) ferment the sugars into ethanol.
- Distillation & Purification: Ethanol is separated and purified to make fuel-grade bioethanol.
- By-products: Lignin and other residues can be used for energy production, compost, or industrial applications.
Applications of Ethanol Produced:
- Can be blended with petrol (E5, E10, or higher) for vehicles.
- Used in industrial and chemical processes as a green solvent.
- Potential use in pharmaceutical and cosmetic industries.
