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Compressed Biogas (CBG) & Biofuels
Compressed Biogas (CBG) & Biofuels
Compressed Biogas (CBG) & Biofuels
Compressed Biogas (CBG) is a purified form of biogas produced from organic waste such as
agricultural residues, animal manure, food waste, municipal solid waste, and sewage sludge.
After removing impurities like carbon dioxide, hydrogen sulfide, and moisture,
the methane-rich gas is compressed and used as a clean fuel.
CBG Production Process:
```text
Organic Waste
↓
Anaerobic Digestion
↓
Raw Biogas
↓
Purification & Upgrading
↓
Compressed Biogas (CBG)
↓
Transportation / Cooking / Industry
```
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Benefits of CBG: * Renewable and environmentally friendly fuel,
* Reduces greenhouse gas emissions, * Converts waste into valuable energy,
* Reduces dependence on fossil fuels, * Generates organic fertilizer as a by-product,
* Supports rural employment and income generation.
What are Biofuels: Biofuels are fuels derived from biological materials (biomass)
such as crops, agricultural waste, algae, and organic residues.
Types of Biofuels:
| Biofuel | Source | Uses |
| ------------------------------- | --------------------------- | ---------------------- |
| Bioethanol | Sugarcane, corn, molasses | Blended with petrol |
| Biodiesel | Vegetable oils, animal fats | Diesel engine fuel |
| Biogas | Organic waste | Cooking, electricity |
| CBG | Purified biogas | Vehicle fuel, industry |
| Sustainable Aviation Fuel (SAF) | Biomass, waste oils | Aviation sector |
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Generations of Biofuels:
First Generation: * Produced from food crops.
* Examples: corn ethanol, sugarcane ethanol.
Second Generation: * Produced from agricultural residues and non-food biomass
* Examples: rice straw, wheat straw, bagasse
Third Generation: * Produced from algae, * Higher fuel yield and sustainability.
Fourth Generation: * Advanced biofuels using biotechnology and carbon capture technologies.
Applications: * Transportation fuels, * Power generation, * Industrial heating,
* Domestic cooking, * Aviation and shipping sectors.
Advantages: * Lower carbon emissions, * Renewable energy source, * Energy security,
* Waste management solution, * Rural economic development.
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Challenges: * High initial investment costs, * Feedstock collection and logistics,
* Technology and infrastructure requirements, * Competition with food crops (for some biofuels).
India's Initiatives: India promotes biofuels and CBG through programs such as:
* SATAT (CBG promotion), * Indian Oil Corporation CBG procurement initiatives,
* National Biofuel Coordination Committee, * Ethanol blending and waste-to-energy programs.
CBG and biofuels are important components of the transition toward cleaner energy,
sustainable waste management, and reduced dependence on fossil fuels.
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Wishing you all the best,
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