Gulshan, Samina and Shafaghat, Hoda and Wang, Shule and Dai, Leilei and Tang, Chuchu and Fu, Wenming and Wen, Yuming and Wang, Chi-Hwa and Evangelopoulos, Panagiotis and Yang, Weihong (2024) Kinetic investigation on the catalytic pyrolysis of plastic fractions of waste electrical and electronic equipment (WEEE): A mathematical deconvolution approach. Waste Management, 187. pp. 156-166. ISSN 0956-053X, DOI https://doi.org/10.1016/j.wasman.2024.07.015.
Full text not available from this repository.Abstract
Waste electrical and electronic equipment (WEEE) has become a critical environmental problem. Catalytic pyrolysis is an ideal technique to treat and convert the plastic fraction of WEEE into chemicals and fuels. Unfortunately, research using real WEEE remains relatively limited. Furthermore, the complexity of WEEE complicates the analysis of its pyrolytic kinetics. This study applied the Fraser-Suzuki mathematical deconvolution method to obtain the pseudo reactions of the thermal degradation of two types of WEEE, using four different catalysts (Al2O3, HBeta, HZSM-5, and TiO2) or without a catalyst. The main contributor(s) to each pseudo reaction were identified by comparing them with the pyrolysis results of the pure plastics in WEEE. The nth order model was then applied to estimate the kinetic parameters of the obtained pseudo reactions. In the low-grade electronics pyrolysis, the pseudo-1 reaction using TiO2 as a catalyst achieved the lowest activation energy of 92.10 kJ/mol, while the pseudo-2 reaction using HZSM-5 resulted in the lowest activation energy of 101.35 kJ/mol among the four catalytic cases. For medium-grade electronics, pseudo-3 and pseudo-4 were the main reactions for thermal degradation, with HZSM-5 and TiO2 yielding the lowest pyrolytic activation energies of 75.24 and 226.39 kJ/ mol, respectively. This effort will play a crucial role in comprehending the pyrolysis kinetic mechanism of WEEE and propelling this technology toward a brighter future.
| Item Type: | Article |
|---|---|
| Funders: | Swedish Energy Agency (51219-1) |
| Uncontrolled Keywords: | Waste electrical and electronic equipment; WEEE; Pyrolysis; Catalysis; Kinetics; Fraser-Suzuki deconvolution |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences T Technology > TA Engineering (General). Civil engineering (General) T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Faculty of Sports and Exercise Science (formerly known as Centre for Sports & Exercise Sciences) |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 27 Mar 2025 05:47 |
| Last Modified: | 27 Mar 2025 05:47 |
| URI: | http://eprints.um.edu.my/id/eprint/46792 |
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