Article Dans Une Revue Proceedings of the Combustion Institute Année : 2025

Soot propensity of a new renewable carbon neutral LPG fuel

Résumé

The transition to zero-carbon fuels is paramount in achieving carbon neutrality and meeting global sustainability goals. The present study offers a comprehensive analysis of the combustion characteristics of renewable LPG (e-LG) compared to conventional propane (HD5). The renewable LPG under examination in this study is produced through a power-to-gasoline synthesis process, which employs CO2 captured from the atmosphere and green hydrogen, thus rendering it a synthetic fuel. This work aims to characterize the properties of soot particles produced in laminar coflow non-premixed flames generated by the e-LG and HD5. To this end, non-intrusive techniques are employed to assess soot production, soot temperature, and thermal radiation emitted by the flame. The findings indicate that, despite its carbon-neutral status, the e-LG produces a considerably higher quantity of soot in comparison to HD5. This discrepancy is likely attributable to the chemical composition of the fuel, which includes a higher proportion of isobutane. However, the overall temperature profile of the e-LG flame is lower but comparable to that of HD5. The study yielded several key technical outcomes, including the discovery that the e-LG produces 57.6% more soot per kilogram of fuel than HD5. This finding has implications for the use of e-LG in applications where emissions control is critical. Furthermore, the e-LG exhibits enhanced heat radiation characteristics, releasing 15% of its energy through radiation, in comparison to 10% for HD5. This augmented heat transfer may impact its performance in industrial heating systems. The study highlights the necessity for further optimization of synthetic fuels like e-LG to harmonize environmental benefits with practical combustion efficiency. These findings contribute to the advancement of zero-carbon fuel technologies, which are pivotal for the future of energy transition.

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Dates et versions

hal-05320200 , version 1 (17-10-2025)

Identifiants

Citer

I. Verdugo, P. Martin, F. Escudero, P.E. Pinto, R. Demarco, et al.. Soot propensity of a new renewable carbon neutral LPG fuel. Proceedings of the Combustion Institute, 2025, 41, pp.105937. ⟨10.1016/j.proci.2025.105937⟩. ⟨hal-05320200⟩
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