28/12/2024
Vacuum distillation processing of pyrolysis oils www.gaokbio.com does offer several key advantages, and the following is a summary of the main benefits and business value you mentioned:
# # # Key Benefits
1. **Improved product quality**:
- Vacuum distillation effectively removes contaminants, removing more than 97.5 per cent of metals from the oil.
- Significantly improves the physico-chemical properties of pyrolysis oil, making it more suitable for industrial applications.
2. **Enhanced separation efficiency**:
- Operating at lower temperatures and pressures, it can separate oil into different fractions with different boiling points:
- Light fraction (boiling point 360°C)
3. **Maintaining product integrity**:
- Lower temperatures prevent thermal degradation of thermally sensitive materials, reducing the risk of polymer formation and product decomposition.
4. **Improved fuel properties**:
- The distilled fraction shows similar density and viscosity values to fossil naphtha and diesel fuel, making it a potential replacement for industrial processes.
5. **Reduction of pollutants**:
- Significantly reduced metal content helps purify pyrolysis oils, making them more suitable for chemical and fuel applications.
# # # Main Distillates
1. **Light oil fraction (boiling point 70-210°C)**:
- Makes up about 30 per cent of the total pyrolysis oil.
- Contains high concentrations of hydrocarbons.
- Potential uses include the fuel and chemical industries.
2. **Medium oil fraction (boiling point 150-360°C)**:
- Contains carboxylic acids, esters, alcohols and hydrocarbons.
- Properties are similar to petroleum-derived naphtha and diesel.
3. **HEAVY OIL FACTION (boiling point >360°C)**: Residual fraction with higher viscosity:
- Residual fraction with high viscosity.
- Can be further processed or used in industrial applications.
# # # Commercial value
- **Fuel Potential**: Fraction shows similar density and viscosity to fossil fuels.
- **Chemical feedstock**: Suitable for use as a vapour cracker and for chemical precursor production.
- **Metal content**: light and medium fractions have a metal content of less than 2.5%.
- **Yield**: typically 50-67% of original pyrolysis oil volume.
# # # Key commercial uses of light oil fractions
- **Fuel production**: as a potential substitute for fossil fuels in power generation and transport.
- **Chemical feedstock**: contains valuable chemicals such as paraffins, naphthenes, olefins and aromatic hydrocarbons.
- **Plasticiser precursor**: can be used as a plasticiser in the tyre industry, supporting circular economy principles.
# # # Specific chemical composition
Light oil fractions typically contain:
- Benzene
- Toluene
- Ethylbenzene
- Xylene (BTEX)
- Limonene
# # # Processing Advantages
- Fractionation at temperatures below 204°C allows for efficient separation of these valuable compounds, making light oil fraction a versatile and economically attractive pyrolysis product.
Light oil fractions represent a significant opportunity to convert waste materials, such as used tyres and plastics, into valuable industrial resources.
# # # Distillation is more than just equipment
Distillation requires more than just plants and equipment; it requires complete knowledge, guidance and assistance to get maximum results, including the specialised additives needed to maintain the parameters and characteristics of the final product. This means that in order to achieve optimum results, expertise and technical support are required to ensure the efficiency of the distillation process and the quality of the product.
