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AuthorMajid, Mahrima
AuthorChin, Bridgid Lai Fui
AuthorJawad, Zeinab Abbas
AuthorChai, Yee Ho
AuthorLam, Man Kee
AuthorYusup, Suzana
AuthorCheah, Kin Wai
Available date2024-04-22T04:57:07Z
Publication Date2021
Publication NameBioresource Technology
AbstractThis study investigated on the co-pyrolysis of microalgae Chlorella vulgaris and high-density polyethylene (HDPE) waste mixtures which was performed with three types of catalysts, namely limestone (LS), HZSM-5 zeolite, and novel bi-functional LS/HZSM-5/LS. Kissinger-Kai (K-K) model-free method was coupled with Particle Swarm Optimization (PSO) model-fitting method using the thermogravimetric experimental data. A global sensitivity analysis was carried out using Latin Hypercube Sampling and rank transformation to assess the extent of impact of the input kinetic parameters on the output results. Furthermore, a thermodynamic analysis was performed to obtain parameters such as enthalpy change (ΔH), Gibb’s free energy (ΔG), and entropy change (ΔS). The activation energy (EA) of the microalgae Chlorella vulgaris and HDPE binary mixture were found to be lower upon the addition of catalysts. Among the catalyst used, bi-functional LS/HZSM-5 catalyst exhibited the lowest EA (83.59 kJ/mol) and ΔH (78 kJ/mol) as compared to LS and HZSM-5 catalysts.
SponsorThe authors would like to express their sincere gratitude to the Curtin University Malaysia and the Centre of Biofuel and Biochemical (CBBR) of Universiti Teknologi PETRONAS (UTP) for the technical support. Furthermore, support from Ministry of High Education Malaysia through HICOE award to CBBR is duly acknowledged. Lastly, KWC acknowledge the EPSRC (EP/P034667/1) for partial funding.
High-density polyethylene waste
Microalgae Chlorella vulgaris
Particle swarm optimization
TitleParticle swarm optimization and global sensitivity analysis for catalytic co-pyrolysis of Chlorella vulgaris and plastic waste mixtures
Volume Number329

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