Abstract
The reactivity and deposition characteristics of a specification jet fuel (Jet A-1) and synthetic jet fuel produced via the Fischer-Tropsch (F-T) process were investigated under supercritical pyrolytic conditions. The latter fuel was comprised solely of straight-chain and branched paraffins. It was found that the F-T fuel was significantly more reactive and more prone to deposit formation than the Jet A-1. These results for the F-T fuel were attributed to the lack of hydrogen-donor capacity and high kinetic chain length. Overall, the decomposition pathways were consistent with free radical pyrolysis at elevated pressures and moderate temperatures. Analytical measurements support the hypothesis that cyclic unsaturates and polycyclic aromatic hydrocarbons (PAH) are formed as intermediates of the deposition process under these reaction conditions. Following initial thermal cracking, the formation of larger PAHs and deposits occur via addition of low molecular weight hydrocarbons and PAH-PAH reactions.
| Original language | English |
|---|---|
| Title of host publication | A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference |
| Pages | 645-657 |
| Number of pages | 13 |
| Volume | 1 |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference - Canberra, Australia Duration: Nov 6 2006 → Nov 9 2006 |
Other
| Other | 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference |
|---|---|
| Country | Australia |
| City | Canberra |
| Period | 11/6/06 → 11/9/06 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Fuel composition influence on deposition in endothermic fuels. / Edwards, Tim; DeWitt, Matthew J.; Shafer, Linda; Brooks, David; Huang, He; Bagley, Sean P.; Oña, Jörge O.; Wornat, Mary J.
A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference. Vol. 1 2006. p. 645-657.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Fuel composition influence on deposition in endothermic fuels
AU - Edwards, Tim
AU - DeWitt, Matthew J.
AU - Shafer, Linda
AU - Brooks, David
AU - Huang, He
AU - Bagley, Sean P.
AU - Oña, Jörge O.
AU - Wornat, Mary J.
PY - 2006
Y1 - 2006
N2 - The reactivity and deposition characteristics of a specification jet fuel (Jet A-1) and synthetic jet fuel produced via the Fischer-Tropsch (F-T) process were investigated under supercritical pyrolytic conditions. The latter fuel was comprised solely of straight-chain and branched paraffins. It was found that the F-T fuel was significantly more reactive and more prone to deposit formation than the Jet A-1. These results for the F-T fuel were attributed to the lack of hydrogen-donor capacity and high kinetic chain length. Overall, the decomposition pathways were consistent with free radical pyrolysis at elevated pressures and moderate temperatures. Analytical measurements support the hypothesis that cyclic unsaturates and polycyclic aromatic hydrocarbons (PAH) are formed as intermediates of the deposition process under these reaction conditions. Following initial thermal cracking, the formation of larger PAHs and deposits occur via addition of low molecular weight hydrocarbons and PAH-PAH reactions.
AB - The reactivity and deposition characteristics of a specification jet fuel (Jet A-1) and synthetic jet fuel produced via the Fischer-Tropsch (F-T) process were investigated under supercritical pyrolytic conditions. The latter fuel was comprised solely of straight-chain and branched paraffins. It was found that the F-T fuel was significantly more reactive and more prone to deposit formation than the Jet A-1. These results for the F-T fuel were attributed to the lack of hydrogen-donor capacity and high kinetic chain length. Overall, the decomposition pathways were consistent with free radical pyrolysis at elevated pressures and moderate temperatures. Analytical measurements support the hypothesis that cyclic unsaturates and polycyclic aromatic hydrocarbons (PAH) are formed as intermediates of the deposition process under these reaction conditions. Following initial thermal cracking, the formation of larger PAHs and deposits occur via addition of low molecular weight hydrocarbons and PAH-PAH reactions.
UR - http://www.scopus.com/inward/record.url?scp=33947198233&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33947198233&partnerID=8YFLogxK
M3 - Conference contribution
SN - 1563478269
SN - 9781563478260
VL - 1
SP - 645
EP - 657
BT - A Collection of Technical Papers - 14th AIAA/AHI International Space Planes and Hypersonics Systems Technologies Conference
ER -