How to advancement tire pyrolysis oil properties
Searched over 200M research papers
Summary
10 papers analyzed
These studies suggest that advancements in tire pyrolysis oil properties can be achieved through the use of various catalysts, co-pyrolysis with biomass, and specific chemical additives to improve yield, reduce sulfur and aromatic compounds, and enhance fuel quality.
Not a yes or no question
To use the Consensus Meter, try asking a simple yes or no question
Research summarized with Copilot
Beta20 papers analyzed
Introduction
Advancing the properties of tire pyrolysis oil is crucial for its potential use as a fuel or chemical feedstock. Various methods, including the use of catalysts, co-pyrolysis with other materials, and optimization of pyrolysis conditions, have been explored to improve the yield, composition, and quality of the oil produced from waste tires.
Key Insights
-
Catalyst Use to Improve Oil Yield and Quality:
- The use of advanced catalysts such as activated alumina, calcium hydroxide, and zeolites can significantly influence the yield and composition of pyrolysis oil. Catalysts like activated alumina and calcium hydroxide have been shown to produce oils with properties similar to conventional diesel, including high heating values and a mix of aromatic and aliphatic hydrocarbons .
- Catalysts with high acid strengths and appropriate pore sizes, such as ZSM-5, USY, and SAPO-11, increase the amount of single-ring aromatics in the oil, making it suitable for use as a petrochemical feedstock.
-
Temperature and Additives:
- The addition of basic additives like NaOH can lower the optimal pyrolysis temperature and increase the yield of valuable chemicals like dl-limonene. For instance, NaOH addition resulted in a maximal pyrolysis oil yield at a lower temperature compared to pyrolysis without additives.
- The use of calcined dolomite and olivine in a two-stage pyrolysis process can significantly reduce the sulfur content of the pyrolysis oil, making it more environmentally friendly .
-
Co-Pyrolysis with Biomass:
- Co-pyrolysis of waste tires with lignocellulosic biomass, such as pinewood sawdust, can stabilize the liquid phase and improve the oil's properties by increasing its carbon content and reducing oxygen and water content. This process also results in a higher yield of aromatic hydrocarbons and phenols .
-
Hydrotreatment and Desulfurization:
- Hydrotreatment using catalysts like Pt/C in the presence of hydrogen and tetralin can significantly reduce the nitrogen and sulfur content in the pyrolysis oil, enhancing its quality as a fuel. This method also increases the oil's heating value and reduces the formation of gas and solid by-products.
- In-situ and ex-situ desulfurization methods, including the use of FeO powder and ethanol extraction, can further reduce the sulfur content in the pyrolysis oil to meet stringent environmental standards.
Conclusion
Advancing the properties of tire pyrolysis oil involves a combination of catalytic processes, co-pyrolysis with biomass, and optimization of pyrolysis conditions. The use of advanced catalysts and additives can significantly improve the yield and quality of the oil, making it more suitable for use as a fuel or chemical feedstock. Additionally, hydrotreatment and desulfurization techniques are essential for reducing the sulfur and nitrogen content, thereby enhancing the oil's environmental compatibility and energy value.
Sources and full results
Most relevant research papers on this topic
Try another search
is it possible to make an atmosphere on mars
knowledge management
What is transdisciplinarity?
How can I use diet and lifestyle to manage inflammatory conditions?
How does the body's response to exercise vary with age, and how can fitness routines be adapted accordingly?
Does customer satisfaction lead to more new customers?