Catalytic flash pyrolysis for recovery of gasoline-range hydrocarbons from electric cable residue using a low-cost natural catalyst: An analytical Py-GC/MS study.

Autor: Lopes VFD; Environmental Technology Laboratory (LabTam), Primary Processing and Reuse of Produced Water and Residues Center (NUPPRAR), Federal University of Rio Grande do Norte, 59075-000 Natal, Rio Grande do Norte, Brazil. Electronic address: vitor.lopes.017@ufrn.edu.br., Alves JLF; Environmental Technology Laboratory (LabTam), Primary Processing and Reuse of Produced Water and Residues Center (NUPPRAR), Federal University of Rio Grande do Norte, 59075-000 Natal, Rio Grande do Norte, Brazil; Department of Renewable Energy Engineering (DEER), Federal University of Paraíba, 58051-900 João Pessoa, Paraíba, Brazil. Electronic address: joseluiz@cear.ufpb.br., da Silva ER; Environmental Technology Laboratory (LabTam), Primary Processing and Reuse of Produced Water and Residues Center (NUPPRAR), Federal University of Rio Grande do Norte, 59075-000 Natal, Rio Grande do Norte, Brazil. Electronic address: edyjancleide.silva.08@ufrn.edu.br., Marques JAO; Environmental Technology Laboratory (LabTam), Primary Processing and Reuse of Produced Water and Residues Center (NUPPRAR), Federal University of Rio Grande do Norte, 59075-000 Natal, Rio Grande do Norte, Brazil; Agricultural School of Jundiaí (EAJ), Federal University of Rio Grande do Norte, 59280-000 Macaíba, Rio Grande do Norte, Brazil. Electronic address: julio.marques.472@ufrn.edu.br., Melo DMA; Environmental Technology Laboratory (LabTam), Primary Processing and Reuse of Produced Water and Residues Center (NUPPRAR), Federal University of Rio Grande do Norte, 59075-000 Natal, Rio Grande do Norte, Brazil; Institute of Chemistry (IQ), Federal University of Rio Grande do Norte, 59078-970 Natal, Rio Grande do Norte, Brazil. Electronic address: dulce.melo@ufrn.br., Melo MAF; Environmental Technology Laboratory (LabTam), Primary Processing and Reuse of Produced Water and Residues Center (NUPPRAR), Federal University of Rio Grande do Norte, 59075-000 Natal, Rio Grande do Norte, Brazil. Electronic address: marcus.melo@ufrn.br., Braga RM; Environmental Technology Laboratory (LabTam), Primary Processing and Reuse of Produced Water and Residues Center (NUPPRAR), Federal University of Rio Grande do Norte, 59075-000 Natal, Rio Grande do Norte, Brazil; Agricultural School of Jundiaí (EAJ), Federal University of Rio Grande do Norte, 59280-000 Macaíba, Rio Grande do Norte, Brazil. Electronic address: renata.braga@ufrn.br.
Jazyk: angličtina
Zdroj: Waste management (New York, N.Y.) [Waste Manag] 2024 Sep 15; Vol. 186, pp. 188-197. Date of Electronic Publication: 2024 Jun 22.
DOI: 10.1016/j.wasman.2024.06.013
Abstrakt: This investigation's novelty and objective reside in exploring catalytic flash pyrolysis of cross-linked polyethylene (XLPE) plastic residue in the presence of kaolin, with the perspective of achieving sustainable production of gasoline-range hydrocarbons. Through proximate analysis, thermogravimetric analysis, and heating value determination, this study also assessed the energy-related characteristics of cross-linked polyethylene plastic residue, revealing its potential as an energy source (44.58 MJ kg -1 ) and suitable raw material for pyrolysis due to its low ash content and high volatile matter content. To understand the performance as a low-cost catalyst in the flash pyrolysis of cross-linked polyethylene plastic residue, natural kaolin was subjected to characterization through thermogravimetric analysis, X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray fluorescence (XRF). Cross-linked polyethylene plastic residue was subjected to thermal and catalytic pyrolysis in an analytical microreactor coupled to gas chromatography-mass spectrometry (Py-GC/MS system), operating at 500 °C, to characterize the distribution and composition of volatile reaction products. The application of kaolin as a catalyst resulted in a decline of the relative concentration of hydrocarbons in the diesel range (C 8 -C 24 ) from approximately 87 % to 28 %, and a reduction in lubricating oils (C 14 -C 50 ) from about 70 % to 13 %, while concomitantly increasing the relative concentration of lighter hydrocarbons in the gasoline range (C 8 -C 12 ) from around 28 % to 87 %. Therefore, catalytic flash pyrolysis offers the potential for converting this plastic waste into a new and abundant chemical source of gasoline-range hydrocarbons. This process can be deemed viable and sustainable for managing and valorizing cross-linked polyethylene plastic residue.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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