Devolatilization of Polypropylene Particles in Fluidized Bed
Gasification of plastic waste is an emerging technology of particular interest to the scientific world given the production of a hydrogen-rich gas from waste material. Devolatilization is a first step thermochemical decomposition process which is crucial in determining the quality of the gas in the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/17/6324 |
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| author | Armando Vitale Alessandro Antonio Papa Stefano Iannello Erwin Ciro Arda Hatunoglu Valerio Corradetti Nicola Rovelli Pier Ugo Foscolo Andrea Di Carlo |
| author_facet | Armando Vitale Alessandro Antonio Papa Stefano Iannello Erwin Ciro Arda Hatunoglu Valerio Corradetti Nicola Rovelli Pier Ugo Foscolo Andrea Di Carlo |
| author_sort | Armando Vitale |
| collection | DOAJ |
| description | Gasification of plastic waste is an emerging technology of particular interest to the scientific world given the production of a hydrogen-rich gas from waste material. Devolatilization is a first step thermochemical decomposition process which is crucial in determining the quality of the gas in the whole gasification process. The devolatilization of polypropylene (a key compound of plastic waste) has been investigated experimentally in a bench-scale fluidized bed reactor. Experimental tests were carried out by varying two key parameters of the process—the size of the polypropylene spheres (8–12 mm) and temperature (650–850 °C). Temperature shows the highest influence on the process. Greater molecular cracking results were more pronounced at higher temperatures, increasing the production of light hydrocarbons along with the formation of solid carbon residue and tar. The overall syngas output reduced, while the H<sub>2</sub> content increased. Furthermore, a pseudo-first-order kinetic model was developed to describe the devolatilization process (E<sub>app</sub> = 11.8 kJ/mol, A<sub>1</sub> = 0.55 s<sup>−1</sup>, ψ = 0.77). |
| first_indexed | 2024-03-10T23:23:42Z |
| format | Article |
| id | doaj.art-698a021c55764b738b74fd44159d59c1 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T23:23:42Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-698a021c55764b738b74fd44159d59c12023-11-19T08:06:22ZengMDPI AGEnergies1996-10732023-08-011617632410.3390/en16176324Devolatilization of Polypropylene Particles in Fluidized BedArmando Vitale0Alessandro Antonio Papa1Stefano Iannello2Erwin Ciro3Arda Hatunoglu4Valerio Corradetti5Nicola Rovelli6Pier Ugo Foscolo7Andrea Di Carlo8Industrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, ItalyIndustrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, ItalyDepartment of Chemical Engineering, University College London, London WC1E 7JE, UKDepartment of Engineering Sciences, Università degli Studi Guglielmo Marconi, 00193 Rome, ItalyDepartment of Astronautics, Electrical and Energy Engineering, Sapienza Università di Roma, Via Eudossiana 18, 00184 Rome, ItalyENERECO Spa, Via L. Einaudi, 84/88, 61032 Fano, ItalyENERECO Spa, Via L. Einaudi, 84/88, 61032 Fano, ItalyIndustrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, ItalyIndustrial Engineering Department, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, 67100 L’Aquila, ItalyGasification of plastic waste is an emerging technology of particular interest to the scientific world given the production of a hydrogen-rich gas from waste material. Devolatilization is a first step thermochemical decomposition process which is crucial in determining the quality of the gas in the whole gasification process. The devolatilization of polypropylene (a key compound of plastic waste) has been investigated experimentally in a bench-scale fluidized bed reactor. Experimental tests were carried out by varying two key parameters of the process—the size of the polypropylene spheres (8–12 mm) and temperature (650–850 °C). Temperature shows the highest influence on the process. Greater molecular cracking results were more pronounced at higher temperatures, increasing the production of light hydrocarbons along with the formation of solid carbon residue and tar. The overall syngas output reduced, while the H<sub>2</sub> content increased. Furthermore, a pseudo-first-order kinetic model was developed to describe the devolatilization process (E<sub>app</sub> = 11.8 kJ/mol, A<sub>1</sub> = 0.55 s<sup>−1</sup>, ψ = 0.77).https://www.mdpi.com/1996-1073/16/17/6324devolatilizationhydrogenplastic wastepolypropylenekinetic modelfluidized bed reactor |
| spellingShingle | Armando Vitale Alessandro Antonio Papa Stefano Iannello Erwin Ciro Arda Hatunoglu Valerio Corradetti Nicola Rovelli Pier Ugo Foscolo Andrea Di Carlo Devolatilization of Polypropylene Particles in Fluidized Bed Energies devolatilization hydrogen plastic waste polypropylene kinetic model fluidized bed reactor |
| title | Devolatilization of Polypropylene Particles in Fluidized Bed |
| title_full | Devolatilization of Polypropylene Particles in Fluidized Bed |
| title_fullStr | Devolatilization of Polypropylene Particles in Fluidized Bed |
| title_full_unstemmed | Devolatilization of Polypropylene Particles in Fluidized Bed |
| title_short | Devolatilization of Polypropylene Particles in Fluidized Bed |
| title_sort | devolatilization of polypropylene particles in fluidized bed |
| topic | devolatilization hydrogen plastic waste polypropylene kinetic model fluidized bed reactor |
| url | https://www.mdpi.com/1996-1073/16/17/6324 |
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