Engineering subject

1. PRESENTATION ON GASIFICATION
Name Enrollment no.
Sonagara Nikhil S. 216200305078
Solanki Darshit V. 216200305079
Nakum Nikunj R. 216200305080
Guided by
Mr. Vidur sosa sir
Mr Chirag Parmar sir

2. CONCEPT OF GASIFICATION
• Gasification is a process that converts carbon-based materials, such as coal,
biomass, or organic waste, into a gas mixture called syngas (synthesis gas).
• It involves heating the feedstock in a low-oxygen environment, which prevents
complete combustion.
• Gasification is considered an efficient and cleaner way to utilize carbon resources
compared to traditional combustion methods because it can capture pollutants
and greenhouse gases for further processing or disposal.

3. STEPS OF GASIFICATION
1. Drying
2. Devolatilization/Pyrolysis
3. Reduction
4. Oxidation
5. Ash cooling

4. STEPS OF GASIFICATION
• Drying:Drying in gasification involves pre-treating the feedstock (like biomass or
waste) to reduce its moisture content. This is done before introducing it into the
gasification reactor to improve gasification efficiency and prevent issues caused
by excess moisture.
• Pyrolysis:Heat-driven breakdown of feedstock in a low-oxygen environment,
creating volatiles, char, and ash, as the first step in generating syngas.
• Reduction:The chemical reaction where carbon-containing feedstock reacts with
gases like carbon monoxide and hydrogen to produce syngas.

5. STEPS OF GASIFICATION
• Oxidation:Controlled addition of oxygen to react with feedstock, producing heat
and carbon dioxide to facilitate the gasification process.
• Ash cooling:Reducing the temperature of hot ash residue after gasification for
safe handling and disposal, often accomplished using cooling and quenching
methods.

6. ADVANTAGES OF GASIFICATION
• Gasification is highly efficient, often yielding more energy from the same amount
of feedstock compared to traditional combustion.
• The syngas produced can be used for power generation, fuel production, and
chemical processes.
• It can produce synthetic fuels, contributing to energy sustainability.
• It converts waste materials into valuable products, reducing the amount of waste.
• It produces fewer emissions of pollutants, including sulfur dioxide, nitrogen
oxides, and particulate matter, leading to better air quality.

7. ADVANTAGES OF GASIFICATION
• Reduced Carbon dioxide emission.
• Accurate combustion control.
• High thermal efficiency.
• Compact equipment requirements with a relatively small footprint.

8. Thank You