Liquid Phase Hydrocarbon Oxidation

Booser, E. Richard; Fenske, M. R.

doi:10.1021/ie50512a038

Cited by 8 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A non-linear logarithmic trend was observed with the addition of 1-MN. For example, the addition of 10%vol to HEFA-SPK significantly increased the induction period (27 times) approaching the IP of 1-MN itself, in agreement with previous measurements [5] [21]. This trend is particularly interesting given that the addition of low fraction (5-10%vol) of 1-MN allows to improve significantly the oxidation stability of HEFA-SPK.…”

Section: Cooxidation Of Hefa-spk With Alkylaromaticssupporting

confidence: 90%

“…A comprehensive investigation by Igarashi et al [22] on the influence of added 8-22%vol fraction of naphthalene, 1-MN and 2-MN to n-hexadecane at 160°C demonstrated a retarding effect of similar amplitude for the three components. This allowed to favor the chemistry of naphthalene nucleus instead of that of methyl group chemistry [21]. The oxidation retarding effect was associated to an increase of the termination rate constant (k t ) through two competing pathways:…”

Section: Cooxidation Of Hefa-spk With Alkylaromaticsmentioning

confidence: 99%

See 1 more Smart Citation

Toward an optimal formulation of alternative jet fuels: Enhanced oxidation and thermal stability by the addition of cyclic molecules

Amara

Kaoubi

Starck

2016

Fuel

View full text Add to dashboard Cite

Oxidation and thermal stability (OTS) are key concerns for the development of alternative jet fuels, as they imply complex physical and chemical phenomena such as autoxidation, pyrolysis, cooxidation reactions and transfer-limitation. The OTSof an alternative aviation fuel was characterized using PetroOxy test from 120-160°C and JFTOT test at 325°C. The alternative jet fuel is a Synthetic Paraffinic Keroseneproduced from Hydroprocessed Esters and Fatty Acids (HEFA-SPK). Results showed a high thermal stability of HEFA-SPK. However, a low oxidation stability was also observed. The oxidation stability of8model cyclicmolecules was evaluated. Results allowed to estimate the influence of the molecular structure of cyclic molecules on liquid phase reactivity involving the number and the hydrogenation of the aromatic rings and the number and chain-length of the aromatic alkyl groups.The addition of several alkylbenzenes increased almost linearly the induction period of HEFA-SPK. Tetralin and decalin acted as inhibitors of the radical chain mechanism at low concentration, although having inherently low oxidation stability. Besides offering a better oxidation stability, the addition of specific low fractions of several alkylbenzenes, tetralin and decalin to HEFA-SPK allowed to achieve a good thermal stability as well. These molecules represent good candidates to improve OTS of HEFA-SPK. This work opens the way for the development of future fit-for-purpose formulations of alternative jet fuels with an increased fraction of renewables.

show abstract

Section: Cooxidation Of Hefa-spk With Alkylaromaticssupporting

confidence: 90%

Section: Cooxidation Of Hefa-spk With Alkylaromaticsmentioning

confidence: 99%

Toward an optimal formulation of alternative jet fuels: Enhanced oxidation and thermal stability by the addition of cyclic molecules

Amara

Kaoubi

Starck

2016

Fuel

View full text Add to dashboard Cite

show abstract

“…Olefins of low molecular weight are also known to exhibit welldefined induction periods in their oxygen uptake reactions (11). Energies of activation for the oxidation of 16 such olefins have been measured (7, 10), the values found ranging from 21 to 28 kcal.…”

Section: Effect Of Temperaturementioning

confidence: 99%

Oxygen Uptake of Polyethylene at Elevated Temperatures

Wilson¹

1955

Ind. Eng. Chem.

View full text Add to dashboard Cite

“…Oxygen absorption studies were made on a series of pure hydrocarbons and compared with similar data from several hydrocarbon mixtures and a composite lubricant (11). With the seven pure hydrocarbons, over a thousandfold difference in oxidation stability was observed in going from the least stable 1-hexadecene through increasingly stable l-methyl-4-isopropylbenzene, cis-Decalin, tetraisobutane, hexadecane, and 1-methylnaphthalene, to the most stable phenanthrene.…”

Section: High Molecular Weight Hydrocarbonsmentioning

confidence: 99%