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A comprehensive review of aluminum gas-phase combustion kinetics in oxygen and steam environments

Qiu, Yue LU ; Bai, Xue Song LU and Nilsson, Elna J.K. LU orcid (2026) In Applications in Energy and Combustion Science 26.
Abstract

Aluminum (Al), as a carbon-free energy source and energy carrier, features favorable characteristics regarding its production, transportation, utilization, and recyclability. However, the understanding of Al gas-phase combustion kinetics is still limited. The novelty of this work lies in presenting the first detailed and comprehensive analysis of the Al gas-phase mechanism in the air and steam environments. Kinetic mechanisms from open literature are analyzed on an elementary reaction level and a mechanism global performance level. On an elementary reaction level, critical reactions outlining the major reaction pathways are reviewed, and their rate constants from both experimental measurements and theoretical calculations are compared.... (More)

Aluminum (Al), as a carbon-free energy source and energy carrier, features favorable characteristics regarding its production, transportation, utilization, and recyclability. However, the understanding of Al gas-phase combustion kinetics is still limited. The novelty of this work lies in presenting the first detailed and comprehensive analysis of the Al gas-phase mechanism in the air and steam environments. Kinetic mechanisms from open literature are analyzed on an elementary reaction level and a mechanism global performance level. On an elementary reaction level, critical reactions outlining the major reaction pathways are reviewed, and their rate constants from both experimental measurements and theoretical calculations are compared. On a mechanism global performance level, different mechanisms are evaluated in a custom-developed Computational Fluid Dynamics (CFD) model to characterize the flame structure of a steadily burning Al droplet. Results reveal that rate constants vary by more than 5 orders of magnitude among the mechanisms. The predicted species and temperature profiles also differ significantly. In particular, the temperature profiles can vary by ∼1000 K, with sensitivity primarily to the rate at which the reaction progresses toward Image 1001 . An overall trend in reaction progress rates was observed, with the Storozhev mechanism being the fastest, followed by the Glorian, Saba, and Starik mechanisms. Although experimental validation and quantum chemistry analysis are still limited, this work provides a valuable foundation for both chemical kinetic modelers to further improve and unify the Al mechanisms and CFD modelers to identify a proper mechanism based on their applications.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Aluminum combustion, Chemical kinetics, Gas-phase, Mechanism analysis, Numerical simulation
in
Applications in Energy and Combustion Science
volume
26
article number
100471
publisher
Elsevier
external identifiers
  • scopus:105032250255
ISSN
2666-352X
DOI
10.1016/j.jaecs.2026.100471
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2026 The Authors.
id
f1aeea3c-eee9-4bd2-9082-e20695f06c77
date added to LUP
2026-05-04 14:00:24
date last changed
2026-05-04 14:01:36
@article{f1aeea3c-eee9-4bd2-9082-e20695f06c77,
  abstract     = {{<p>Aluminum (Al), as a carbon-free energy source and energy carrier, features favorable characteristics regarding its production, transportation, utilization, and recyclability. However, the understanding of Al gas-phase combustion kinetics is still limited. The novelty of this work lies in presenting the first detailed and comprehensive analysis of the Al gas-phase mechanism in the air and steam environments. Kinetic mechanisms from open literature are analyzed on an elementary reaction level and a mechanism global performance level. On an elementary reaction level, critical reactions outlining the major reaction pathways are reviewed, and their rate constants from both experimental measurements and theoretical calculations are compared. On a mechanism global performance level, different mechanisms are evaluated in a custom-developed Computational Fluid Dynamics (CFD) model to characterize the flame structure of a steadily burning Al droplet. Results reveal that rate constants vary by more than 5 orders of magnitude among the mechanisms. The predicted species and temperature profiles also differ significantly. In particular, the temperature profiles can vary by ∼1000 K, with sensitivity primarily to the rate at which the reaction progresses toward Image 1001 . An overall trend in reaction progress rates was observed, with the Storozhev mechanism being the fastest, followed by the Glorian, Saba, and Starik mechanisms. Although experimental validation and quantum chemistry analysis are still limited, this work provides a valuable foundation for both chemical kinetic modelers to further improve and unify the Al mechanisms and CFD modelers to identify a proper mechanism based on their applications.</p>}},
  author       = {{Qiu, Yue and Bai, Xue Song and Nilsson, Elna J.K.}},
  issn         = {{2666-352X}},
  keywords     = {{Aluminum combustion; Chemical kinetics; Gas-phase; Mechanism analysis; Numerical simulation}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Applications in Energy and Combustion Science}},
  title        = {{A comprehensive review of aluminum gas-phase combustion kinetics in oxygen and steam environments}},
  url          = {{http://dx.doi.org/10.1016/j.jaecs.2026.100471}},
  doi          = {{10.1016/j.jaecs.2026.100471}},
  volume       = {{26}},
  year         = {{2026}},
}