| Zugriffsnummer | 54992 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Experimental study on oxidation-chemistry of iso-propanol and tetrahydrofuran blends using a jet-stirred reactor |
| Autor(in); Institution |
Sharma, Meenu; 3.3, Physikalische Chemie, PTB-Braunschweig
Ramalingam, Ajoy; 3.3, Physikalische Chemie, PTB-Braunschweig
|
| Quelle/Jahr | Combustion and Flame: 281 (2025), 1 - 13 |
| Artikelnummer | 114365 |
| ISSN | 0010-2180 (print) ; 1556-2921 (online) |
| DOI | |
| Verlag | Amsterdam: Elsevier |
| Freie Schlagworte | Jet-stirred reactor ; Time-of-flight mass ; spectrometry ; iso-propanol ; THF ; Speciation |
| Zusammenfassung | Decarbonizing the aviation sector is crucial for meeting global climate goals, with a strong emphasis on reducing emissions from long-range flights where liquid fuels are indispensable. Synthetic fuels or e-fuels have emerged as a promising solution for sustainable aviation. This study explores the oxidation chemistry of fuel blends consisting of iso-propanol and tetrahydrofuran (THF), two liquid e-fuels that show potential for use in energy-efficient aviation. By utilizing a jet-stirred reactor (JSR) coupled with a Time-of-Flight Mass Spectrometer (TOF-MS), the study examines the oxidation behavior of these fuels, both individually and in blends, under controlled temperature and pressure conditions. Experiments were conducted over a temperature range of 500 to 1200 K, at a pressure of 1 bar, and with lean fuel-air mixtures (φ = 0.5). These conditions are typical for lean pre-mixed pre-vaporized (LPP) combustion systems, commonly used in gas turbines to lower NOx and soot emissions. The results highlight a critical reactivity threshold for THF at low temperatures, below which its oxidation ceased, particularly at mole fractions <0.0035. The presence of iso-propanol in the blends further influenced the oxidation behavior: at low temperatures, iso-propanol suppressed THF’s reactivity by forming stable acetone. In contrast, at higher temperatures, iso-propanol enhanced overall reactivity by promoting radical formation, converting acetone to ketene, and facilitating significant propene production through primary iso-propyl radical channels. This study reveals the intricate chemical interactions between iso-propanol and THF, offering critical insights into their oxidation mechanisms, with a particular focus on the low-temperature reactivity pathways of iso-propanol. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY-NC 4.0 ; Creative Commons Attribution NonCommercial 4.0 License |
| Themenbereich der Metrologie | Metrologie in der Chemie und Stoffeigenschaften |
| Förderinformationen (1) |
Förderername: Deutsche Forschungsgemeinschaft (DFG)
Förderer ID: 0000 0001 2096 9829 Förderer ID Typ: ISNI Förderprogramm: Germany's Excellence Strategy—EXC 2163/1 Titel der Förderung: Germany's Excellence Strategy—EXC 2163/1, Sustainable and Energy-Efficient Aviation Förderungsnummer: 390881007 URI der Förderung: https://www.tu-braunschweig.de/se2a |
Zitierung
Sharma, M., Li, M., Nadiri, S., Ramalingam, A., Shu, B., Fernandes, R., & Moshammer-Ruwe, K. (2025). Experimental study on oxidation-chemistry of iso-propanol and tetrahydrofuran blends using a jet-stirred reactor. Combustion and Flame, 281, 1–13. https://doi.org/10.1016/j.combustflame.2025.114365