Thermo-catalytic co-pyrolysis of ironbark sawdust and plastic waste over strontium loaded hierarchical Y-zeolite

Dada, Tewodros Kassa, Islam, Md Anwarul, Vuppaladadiyam, Arun K., and Antunes, Elsa (2021) Thermo-catalytic co-pyrolysis of ironbark sawdust and plastic waste over strontium loaded hierarchical Y-zeolite. Journal of Environmental Management, 299. 113610.

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Abstract

The objective of this research is to synthesize hierarchical strontium loaded Y-zeolite and study its application for ironbark (IB) and plastic waste (PW) co-pyrolysis. Commercial parent Y-zeolite (Si/Al = 2.48) was modified via sequential dealumination-desilication using citric acid and NaOH. Further, strontium (8 wt %) was loaded into the modified Y-zeolite via wet and dry impregnation methods. The prepared catalyst was characterized by N2 adsorption-desorption isothermal, field emission scanning electron microscopy (FESEM) combined with energy dispersive x-ray spectroscopy (EDS), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and Thermogravimetric analyzer (TGA). After dealumination (treatment using 0.1 M of citric acid), the external surface area and Si/Al ratio increased from 53.5 to 147.4 m2/g and 2.48 to 5.36, respectively. However, the sequential desilication treatment reduced Si/Al ratio from 5.36 to 2.57. In addition, Y-zeolite enhanced the total aromatic percentage and reduced the acidic group in co-pyrolysis oil.

Item ID: 69944
Item Type: Article (Research - C1)
ISSN: 1095-8630
Keywords: Catalyst, Co-pyrolysis, Hierarchal zeolite, Plastic waste, Strontium, Wood biomass
Copyright Information: © 2021 Elsevier Ltd. All rights reserved
Date Deposited: 29 Nov 2021 02:01
FoR Codes: 40 ENGINEERING > 4004 Chemical engineering > 400408 Reaction engineering (excl. nuclear reactions) @ 20%
40 ENGINEERING > 4004 Chemical engineering > 400402 Chemical and thermal processes in energy and combustion @ 80%
SEO Codes: 17 ENERGY > 1708 Renewable energy > 170801 Biofuel energy @ 100%
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