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Slow pyrolysis of waste polyethylene terephthalate yielding paraldehyde, ethylene glycol, benzoic acid and clean fuel

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    0556401 - ÚSMH 2023 RIV GB eng J - Journal Article
    Straka, Pavel - Bičáková, Olga - Šupová, Monika
    Slow pyrolysis of waste polyethylene terephthalate yielding paraldehyde, ethylene glycol, benzoic acid and clean fuel.
    Polymer Degradation and Stability. Roč. 198, APR 2022 (2022), č. článku 109900. ISSN 0141-3910. E-ISSN 1873-2321
    Institutional support: RVO:67985891
    Keywords : Pyrolysis * Waste PET * Paraldehyde * Ethylene glycol * Benzoic acid * Clean fuel
    OECD category: Polymer science
    Impact factor: 5.9, year: 2022
    Method of publishing: Limited access
    https://www.sciencedirect.com/science/article/pii/S0141391022000866?via%3Dihub

    The low-temperature slow pyrolysis of PET waste was studied. After intensive thermal activation, the waste PET could be completely pyrolyzed at 25 degrees C min-1 to the final temperature of 400 degrees C. The main components of the resulting oil were paraldehyde (54.7 wt.%) and ethylene glycol (23.7 wt.%), further, benzoic acid and benzoates were obtained. Such products represent valuable intermediates for industrial use or other applications. In addition, the pyrolysis produced a solid carbonaceous residue, particularly usable as a low-ash and low-sulfur smokeless fuel (HHV 31.3, LHV 30.4 MJ kg-1). Thus, the low-temperature pyrolysis of PET waste yields products that are easy to put to use with no demands on the purity of the feedstock.
    Permanent Link: http://hdl.handle.net/11104/0331155

     
     
Number of the records: 1  

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