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Evaluation of zeolite catalysts on product distribution and synergy during wood-plastic composite catalytic pyrolysis

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  • Lin, Xiaona
  • Zhang, Zhijun
  • Wang, Qingwen

Abstract

The catalytic pyrolysis of poplar wood-polypropylene composite (WPP) over different zeolite catalysts (HZSM-5, HBeta, HY, and HUSY) was investigated to obtain the influence of zeolite properties on both product distribution and synergistic effect using Py-GC/MS. The yield of aromatics was in the order: HZSM-5 > HY > HBeta > HUSY. HZSM-5 facilitated the formation of monomethyl aromatics, whereas HBeta and HY tended to promote the formation of polymethyl aromatics due to the larger pore size. The coke yield of HZSM-5 (6.4%) was much lower than those of other zeolites tested (11.4–20.2%), suggesting that the pore size of a zeolite was mainly responsible for coke formation during WPP pyrolysis. The strong synergistic effects between poplar and polypropylene in WPP pyrolysis were observed with all the zeolite catalysts tested as the experimental and calculated product distribution was significantly different. The synergistic effect over HZSM-5 zeolite promoted the selectivity for polyaromatics instead of mono aromatics, whereas the mono aromatics yield was increased by 28% for HBeta and 15% for HY zeolite. Our findings suggest that the catalytic pyrolysis of wood-plastic composites over the zeolite catalyst with suitable pore size and acidity might provide a viable and efficient route to generate hydrocarbons.

Suggested Citation

  • Lin, Xiaona & Zhang, Zhijun & Wang, Qingwen, 2019. "Evaluation of zeolite catalysts on product distribution and synergy during wood-plastic composite catalytic pyrolysis," Energy, Elsevier, vol. 189(C).
    • Handle: RePEc:eee:energy:v:189:y:2019:i:c:s0360544219318699
    DOI: 10.1016/j.energy.2019.116174
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    Cited by:

    1. Huang, Jijiang & Veksha, Andrei & Chan, Wei Ping & Giannis, Apostolos & Lisak, Grzegorz, 2022. "Chemical recycling of plastic waste for sustainable material management: A prospective review on catalysts and processes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 154(C).
    2. He, Yao & Chen, Junjie & Li, Didi & Zhang, Qian & Liu, Dongxia & Liu, Jingyong & Ma, Xiaoqian & Wang, Tiejun, 2021. "Efficient production of aromatics by catalytic pyrolysis of fruit waste over zeolites with 3D pore topologies," Energy, Elsevier, vol. 223(C).
    3. Agata Mlonka-Mędrala, 2023. "Recent Findings on Fly Ash-Derived Zeolites Synthesis and Utilization According to the Circular Economy Concept," Energies, MDPI, vol. 16(18), pages 1-21, September.
    4. Lin, Xiaona & Lei, Hanwu & Wang, Chenxi & Qian, Moriko & Mateo, Wendy & Chen, Xiaoyun & Guo, Yadong & Huo, Erguang, 2023. "The effects of pore structures and functional groups on the catalytic performance of activated carbon catalysts for the co-pyrolysis of biomass and plastic into aromatics and hydrogen-rich syngas," Renewable Energy, Elsevier, vol. 202(C), pages 855-864.
    5. Ren, Xiajin & Cai, Hongzhen & Zhang, Qingfa & Zhang, Donghong & Lin, Xiaona, 2021. "Evaluation of zeolite catalysts on product distribution during sweet sorghum bagasse catalytic pyrolysis," Energy, Elsevier, vol. 214(C).
    6. Sun, Ce & Li, Wenlong & Chen, Xiaojian & Li, Changxin & Tan, Haiyan & Zhang, Yanhua, 2021. "Synergistic interactions for saving energy and promoting the co-pyrolysis of polylactic acid and wood flour," Renewable Energy, Elsevier, vol. 171(C), pages 254-265.
    7. Zhang, Donghong & Lin, Xiaona & Zhang, Qingfa & Ren, Xiajin & Yu, Wenfan & Cai, Hongzhen, 2020. "Catalytic pyrolysis of wood-plastic composite waste over activated carbon catalyst for aromatics production: Effect of preparation process of activated carbon," Energy, Elsevier, vol. 212(C).

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