Journal article
A LaFeO 3 supported natural‐clay‐mineral catalyst for efficient pyrolysis of polypropylene plastic material
Asia-Pacific Journal of Chemical Engineering, Vol.16(5), e2695
2021
Abstract
The pyrolysis and catalytic reforming process of waste plastics are the best pathways to handle vast amounts of waste plastics as they can convert these waste polymers into sustainable products. This study aims to incorporate a natural-clay-mineral (NCM) with LaFeO3 nanoparticles, with the LaFeO3/NCM catalyst in the pyrolysis of polypropylene (PP) being used as an example of plastic waste. The decomposition of PP with and without catalyst has been theoretically studied using thermogravimetry (TG) and differential scanning calorimetry (DSC) measurements under atmospheric pressure and nitrogen atmosphere. The TG/DSC results show that (i) the required temperature for pyrolysis of PP with or without catalyst in a practical system ranges from 460°C to 480°C; (ii) the amount of coke produced on the surface of the NCM or LaFeO3 is about 2 wt.% compared with the initial plastic levels; (iii) with the catalyst, PP not only goes through the phase transitions of solid to liquid to gas but also decomposition and combination processes between components from the hydrocarbon chain scission of PP. Gas chromatography–mass spectrometry (GC–MS) results show significant differences in the fuel oil recovered from the pyrolysis and catalytic reforming process. In the presence of the catalyst, cracking components consist of 49.3% alkenes (branched-chain alkenes, cyclo-alkenes, and alkenes) and 34.4% alkanes, while without the catalyst, branched-chain alkenes were up to 90.2%. Repeated pyrolysis and GC–MS investigations demonstrated the reusability of the LaFeO3/NCM catalyst, which is promising for its recycling and the efficient pyrolysis of PP.
Details
- Title
- A LaFeO 3 supported natural‐clay‐mineral catalyst for efficient pyrolysis of polypropylene plastic material
- Authors/Creators
- L.T.T. Nguyen (Author/Creator) - Ho Chi Minh City University of EducationG.E.J. Poinern (Author/Creator) - Murdoch UniversityH.T. Lee (Author/Creator)T.A. Nguyen (Author/Creator)C.M. Tran (Author/Creator) - Vietnam Academy of Science and TechnologyZ-T Jiang (Author/Creator) - Murdoch University
- Publication Details
- Asia-Pacific Journal of Chemical Engineering, Vol.16(5), e2695
- Publisher
- Wiley-Blackwell
- Identifiers
- 991005544099307891
- Copyright
- © 2021 Curtin University and John Wiley & Sons, Ltd.
- Murdoch Affiliation
- College of Science, Health, Engineering and Education; Surface Analysis and Materials Engineering Research Group
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 7 Engineering & Materials Science
- 7.139 Energy & Fuels
- 7.139.89 Gasification
- Web Of Science research areas
- Engineering, Chemical
- ESI research areas
- Chemistry