Kinetic and thermodynamic analyses during co-pyrolysis of greenhouse wastes and coal by TGA

Hasan Merdun and Zakari Boubacar Laougé

Renewable Energy, 2021, vol. 163, issue C, 453-464

Abstract: For thermal and kinetic analyses of co-pyrolysis of biomass and coal thermogravimetric analysis (TGA) is usually used to get valuable information for accurate design of co-pyrolysis facilities. In this study, pyrolysis mechanism of the equal mixture of tomato, pepper, and eggplant wastes as greenhouse vegetables wastes (GVW) and its blend with coal was investigated by using TGA with different heating rates. Kinetic and thermodynamic parameters were calculated by using Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) models. To highlight the synergistic effect between GVW and coal during co-pyrolysis, the deviation between the experimental and calculated values of mass loss and mass loss rate was calculated. The average activation energy (Ea) of 100%wt calculated by FWO and KAS models was 74.27 and 67.00 kJ mol−1, whereas Ea of 0%wt was 133.99 and 129.84 kJ mol−1, respectively. The average Ea of 25%wt was 148.34 and 145.19 kJ mol−1, while it was 57.21 and 49.40 kJ mol−1 for 50%wt. The positive values of deviation indicated the existence of synergistic effect between GVW and coal during co-pyrolysis. The blend of 50%wt with the smallest Ea and ΔS was the best combination for the simultaneous valorization of GVW and coal through pyrolysis.

Keywords: Greenhouse wastes; Coal; Co-pyrolysis; Thermogravimetric analysis; Kinetic; Synergistic effect (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (17)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148120313653
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:163:y:2021:i:c:p:453-464

DOI: 10.1016/j.renene.2020.08.120

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().