Properties and producibility of advanced jet fuels

Edwards, Tim; Harrison, William; Afb, Wright-Patterson; Schobert, Harold H.

doi:10.2514/6.1997-2848

Cited by 12 publications

(15 citation statements)

References 16 publications

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“…The highest heat sink of JP-10 measured in this work was less than 2.70 MJ/kg for all flow rates, which is only approximately 75% of those of RP-3 and JP-7 . The lower heat sink of JP-10 may be ascribed to the lower selectivity of unsaturated hydrocarbon production supported by the viewpoint that the fuel has a more endothermic capability with a higher alkene ratio in gas products than thermodynamically favored stable products such as methane, ethane, and coke . In this work, the ethene and propene selectivity were quite lower than that at the atmospheric pressure.…”

Section: Resultsmentioning

confidence: 52%

Supercritical Pyrolysis and Coking of JP-10 in Regenerative Cooling Channels

Pan

Zhang

et al. 2020

Energy Fuels

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JP-10 is a potential endothermic hydrocarbon fuel (EHF) with a high energy density for the regenerative cooling technology of advanced aircrafts. In this work, pyrolysis and coking of JP-10 were experimentally studied using an electrically heated tube as a flowing reactor under supercritical conditions (4.5 MPa, 550–735 °C). For the supercritical pyrolysis, dicyclopentadiene, exo-TCD4e, and indane/indene were observed with relatively higher selectivity at low conversion, and the selectivities of typical products (ethene, propene, CPD, cyclopentene, and benzene) were lower compared with that under atmospheric pressure, possibly because of the enhanced bimolecular reactions. The heat sink of JP-10 was approximately 2.5 MJ/kg ascribed to the severe coke formation during the pyrolysis. Further characterizations on cokes indicated that the coke in the bulk fluid was about 70–170 times higher than that deposited on the wall, attributed to rapid formation of polycyclic aromatic hydrocarbons (PAHs) of pyrolysis products rather than the wall catalysis.

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Section: Resultsmentioning

confidence: 52%

Supercritical Pyrolysis and Coking of JP-10 in Regenerative Cooling Channels

Pan

Zhang

et al. 2020

Energy Fuels

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“…To provide the necessary cooling, the fuel must be able to absorb approximately 3.5 MJ/kg and not break down under pyrolytic and auto-oxidative conditions. 32 Naphthenic fuels (especially polycyclic naphthenics)…”

Section: Properties In Comparison To Jet A-1 Specificationsmentioning

confidence: 99%

A Characterization and Evaluation of Coal Liquefaction Process Streams. Results of Inspection Tests on Nine Coal-Derived Distillation Cuts in the Jet Fuel Boiling Range

Brandes¹,

Winschel²

1999

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This report describes the assessment of the physical and chemical properties of the jet fuel (180-300 EC) distillation fraction of nine direct coal liquefaction products and compares those properties to the corresponding specifications for aviation turbine fuels. These crude coal liquids were compared with finished fuel specifications specifically to learn what the refining requirements for these crudes will be to make them into finished fuels. The properties of the jet fuel fractions were shown in this work to require extensive hydrotreating to meet Jet A-1 specifications. However, these materials have a number of desirable qualities as feedstocks for the production of high energy-density jet fuels.

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“…Until recently, the major concern in jet-fuel stability involved only thermal oxidation stability and storage stability, because the current operating fuel temperature for all commercial and military jet fuels is below 300 °C, where fuel degradation is controlled by autoxidation reactions [5,6]. With the development of high-Mach aircraft, fuel thermal stability has become crucial [7][8][9][10]. Fuel in such aircraft is expected to experience temperatures in the range of 400 to 500 °C [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…With the development of high-Mach aircraft, fuel thermal stability has become crucial [7][8][9][10]. Fuel in such aircraft is expected to experience temperatures in the range of 400 to 500 °C [7][8][9]. One of the critical problems in developing thermally stable jet fuels for high-Mach aircraft is the thermal decomposition and formation of solids from hydrocarbon fuels in the pyrolytic regime [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Fuel in such aircraft is expected to experience temperatures in the range of 400 to 500 °C [7][8][9]. One of the critical problems in developing thermally stable jet fuels for high-Mach aircraft is the thermal decomposition and formation of solids from hydrocarbon fuels in the pyrolytic regime [9][10][11][12][13]. Previous studies at Pennsylvania State University have demonstrated that during the pyrolytic degradation of coal-and petroleumderived jet fuels, hydrogen transfer form hydrogen-donors, such as those present in coal-derived JP-8C jet fuel, could play an important role in suppressing thermal solid formation [10,14].…”

Section: Introductionmentioning

confidence: 99%

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