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Catalytic Pyrolysis of Waste Bicycle Tires and Engine Oil to Produce Limonene

Author

Listed:
  • Junzhi Wang

    (College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266000, China)

  • Xinjiang Dong

    (College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266000, China)

  • Zongliang Zuo

    (College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266000, China)

  • Siyi Luo

    (College of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266000, China)

Abstract

NaOH, dolomite and NiCl 2 were used as catalysts to examine their effects on co–pyrolysis with waste bicycle tires (WT) and waste engine oil (WEO). The pyrolysis behaviors with catalysts were investigated by thermogravimetric analysis. The activation energy of the catalytic main reaction stage was derived by the Kissinger–Akahira–Sunose (KAS) method under four different heating rates conditions. The calculations show that all three catalysts can reduce the activation energy of the reaction. Co–pyrolysis of WT and WEO with different catalysts was performed in a self–made lab bench at 600 °C to explore the impact on the distribution of three–phase products. The properties of gas and oil products were characterized by FTIR and Py–GC/MS (Agilent 7890B, Santa Clara, CA, USA). With the mixing of catalysts, activation energy (E α ) decreased by 15–30% in the main reaction process. NaOH and dolomite increased the yield of gas by 7% and 10%. NaOH can significantly improve the yield of CH 4 . The proportion of limonene in pyrolysis oil increased to 19.65% with 10% NaOH. This article provides a new method for efficiently producing limonene by mixing WT and WEO with NaOH.

Suggested Citation

  • Junzhi Wang & Xinjiang Dong & Zongliang Zuo & Siyi Luo, 2023. "Catalytic Pyrolysis of Waste Bicycle Tires and Engine Oil to Produce Limonene," Energies, MDPI, vol. 16(11), pages 1-12, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:11:p:4351-:d:1156568
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    References listed on IDEAS

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    1. Song, Zhanlong & Liu, Li & Yang, Yaqing & Sun, Jing & Zhao, Xiqiang & Wang, Wenlong & Mao, Yanpeng & Yuan, Xueliang & Wang, Qingsong, 2018. "Characteristics of limonene formation during microwave pyrolysis of scrap tires and quantitative analysis," Energy, Elsevier, vol. 142(C), pages 953-961.
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