Fuel instability model studies: The liquid-phase cooxidation of thiols and indene by oxygen
Journal Article
·
· Energy and Fuels; (United States)
- Naval Research Lab., Washington, DC (United States)
Instability problems in middle distillate fuels have been correlated with the presence of both active olefin species and heteroatomic compounds such as thiols. It has been demonstrated that the type of sulfur compound rather than the total sulfur concentration is the key to fuel instability reactions. Research has shown that low concentrations of thiols will act as radical traps to inhibit autoxidation. When added to a fuel, thiols accelerated the rate of oxygen reaction without a commensurate increase in peroxidation. Evidence for the oxidative addition of thiols to olefins has been found to occur by studying the addition of thiophenol to indene in a model fuel during stressing in both a model system at temperatures in the 100-120C range and in the JFTOT apparatus at temperatures up to 320C. Similarities and differences were found in the two systems, with the product distribution being temperature dependent. This could account, in part, for the differences in thiol influences on autoxidation observed in model systems and in fuels.
- OSTI ID:
- 5493503
- Journal Information:
- Energy and Fuels; (United States), Journal Name: Energy and Fuels; (United States) Vol. 5:5; ISSN 0887-0624; ISSN ENFUE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
022000* -- Petroleum-- Transport
Handling
& Storage
023000 -- Petroleum-- Properties & Composition
AGING
ALKANES
ALKENES
AROMATICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CONDENSED AROMATICS
DATA
DISTILLATES
DODECANE
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
HYDROCARBONS
INDENE
INFORMATION
MASS SPECTROSCOPY
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
RADICALS
SEPARATION PROCESSES
SPECTROSCOPY
STABILITY
TEMPERATURE DEPENDENCE
TEST FACILITIES
THIOLS
022000* -- Petroleum-- Transport
Handling
& Storage
023000 -- Petroleum-- Properties & Composition
AGING
ALKANES
ALKENES
AROMATICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
CONDENSED AROMATICS
DATA
DISTILLATES
DODECANE
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
HYDROCARBONS
INDENE
INFORMATION
MASS SPECTROSCOPY
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
RADICALS
SEPARATION PROCESSES
SPECTROSCOPY
STABILITY
TEMPERATURE DEPENDENCE
TEST FACILITIES
THIOLS