In-depth study on the synergistic mechanism of natural iron ores for biomass gasification: Intrinsic characteristics, iron ore properties and gasification kinetics

Lian Ye, Jianliang Zhang, Runsheng Xu, Jinghui Xia, Nan Zhang, Guoli Jia and Dawei Lan

Energy, 2025, vol. 316, issue C

Abstract: This paper aims to investigate the synergistic mechanism of natural iron ores for biomass gasification. The results indicate that biomass exhibits higher volatile content and a lower degree of graphitized carbon structure, leading to increased gas production and O-H vibrations during rapid weight loss. The presence of alkali metal catalysis and enhanced specific surface area in biochar lead to an increased reaction rate within the temperature range of 300 °C–500 °C. Furthermore, natural iron ores gradually release adsorbed oxygen and lattice oxygen, transitioning from Fe2O3 to Fe3O4, FeO, and finally to Fe, and it combines with reducing substances to promote gasification process. Peruvian and Newman ores are natural ores with better lattice oxygen release capacity and reaction contact area, and the weight loss curve for biomass gasification with a 1:1 biomass/iron ore ratio is Peruvian > Newman > Fe3O4 > Fe2O3. The apparent activation energy of the biomass gasification catalyzed by natural iron ore decreases after a conversion rate of 0.5, and it is significantly reduced from 232.24 kJ/mol to 168.02 kJ/mol in the Ozawa-Flynn-Wall method.

Keywords: Biomass gasification; Natural iron ores; Kinetic analysis; Thermogravimetry behavior; Intrinsic characteristics (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544224040969
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:energy:v:316:y:2025:i:c:s0360544224040969

DOI: 10.1016/j.energy.2024.134318

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

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