Types of Feedstock for Waste Tyre Pyrolysis plant: From Tires to Plastics to Biomass
Waste tyre pyrolysis is a process of converting used tires and other types of waste materials into valuable end products such as fuel oil, carbon black, and steel wire. One of the key factors that influence the quality and yield of the end products is the type of feedstock used in the process. In this blog, we will discuss the different types of feedstock that can be used in waste tyre pyrolysis, including used tires, plastics, and biomass, and their effects on the pyrolysis process and end products.
Used Tires
Used tires are the most common type of feedstock used in waste tyre pyrolysis. They are made of rubber, which contains a high percentage of carbon and hydrogen, making it an ideal material for pyrolysis. The pyrolysis of used tires produces a range of valuable end products, including fuel oil, carbon black, and steel wire.
The quality and quantity of the end products depend on the composition and condition of the tires used. For instance, tires that have been exposed to sunlight and weathering for a long time may produce less oil due to the breakdown of the rubber’s molecular structure. Similarly, tires with a high metal content may produce less steel wire and more carbon black.
Plastics
Plastics are another common feedstock used in waste tyre pyrolysis plant. They are made of hydrocarbons, which makes them ideal for pyrolysis. The pyrolysis of plastics produces a range of end products, including fuel oil, gas, and carbon black.
The quality and quantity of the end products depend on the type of plastics used. Different types of plastics have different compositions and molecular structures, which affect their pyrolysis characteristics. For instance, polyethylene (PE) produces a higher yield of oil than polypropylene (PP) due to its higher carbon-to-hydrogen ratio.
Biomass
Biomass is a renewable feedstock that can also be used in waste tyre pyrolysis. It includes organic materials such as wood, straw, and agricultural waste. The pyrolysis of biomass produces a range of end products, including bio-oil, biochar, and syngas.
The quality and quantity of the end products depend on the type of biomass used. Different types of biomass have different compositions and heating values, which affect their pyrolysis characteristics. For instance, wood produces a higher yield of bio-oil than straw due to its higher lignin content.
Conclusion:
In summary, the type of feedstock used in waste tyre pyrolysis has a significant impact on the quality and yield of the end products. Used tires, plastics, and biomass are the most common types of feedstock used in pyrolysis. Each has its own unique characteristics and effects on the pyrolysis process and end products. By understanding these factors, waste tyre pyrolysis plant operators can optimize their process and produce high-quality end products with maximum yield.
