Refining pyrolysis oil is a multi-step process designed to produce clean, transparent non-standard diesel.
The refined products include diesel, asphalt, water, and other impurities.
Diesel can be used for machinery, generators, boilers, and as power oil.
Asphalt can be used for paving or further refining in asphalt plants.
How do you refine pyrolysis oil? – 7 Key Steps to Clean, Transparent Diesel
1. Degreasing and Bleaching
The initial steps of degreasing and bleaching are crucial for removing unwanted substances and impurities from the pyrolysis oil.
Degreasing involves the removal of oils and fats, which can be achieved through various chemical or physical methods.
Bleaching helps in removing color and odor from the oil, typically using activated clay or other absorbent materials.
2. Purification
After degreasing and bleaching, the oil undergoes purification to further enhance its quality.
This step might involve processes like filtration or the use of specific chemicals to remove any remaining impurities or contaminants.
The goal is to produce a cleaner, more stable oil product.
3. Distillation
The distillation process is a critical step in refining pyrolysis oil.
It involves heating the oil to separate it into different components based on their boiling points.
This process can be done in a distillation reactor, where the oil is heated and the various components are collected as they vaporize and condense.
This step helps in obtaining diesel and other by-products like asphalt.
4. Uses and Applications
The refined diesel from pyrolysis oil can be used in various applications such as powering heavy machinery, generators, boilers, and as a source of power oil.
Asphalt, another by-product, can be directly used for paving roads or further processed in asphalt plants.
5. Technological Advantages
Modern pyrolysis oil distillation plants, like those from Kintek, feature advanced technologies such as vertical reactor designs for easier slagging and improved efficiency.
They also utilize hot air heating technology for safety and increased heating efficiency, and water circulation technology to enhance system security and improve the output and quality of the fuel oil.
6. Challenges and Considerations
Pyrolysis oil, being a mixture of intermediate, reactive decomposition products, is generally unstable over time.
It can undergo changes such as an increase in viscosity and phase separation due to condensation reactions of reactive components.
Therefore, proper storage and handling techniques are essential to maintain the quality of the oil.
7. Summary
In summary, refining pyrolysis oil involves a series of steps including degreasing, bleaching, purification, and distillation to produce usable products like diesel and asphalt.
Advanced technologies and careful handling are crucial to ensure the quality and stability of the final products.
Continue exploring, consult our experts
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