Stability of alternate fuels
Samples of gasoline and jet fuel produced from coal, oil shale, or tar sands were stored in amber glass bottles for 32 weeks at 43.3/sup 0/C (110/sup 0/F), and the amounts of gum formed in each were determined. Samples of petroleum-derived gasoline and jet fuel were stored under the same conditions for comparison with the alternate fuels. The petroleum-derived fuels showed good storage stability, while most of the synthetic fuels developed high levels of deposits after 32 weeks. Accelerated storage at 93.3/sup 0/C (200/sup 0/F) for 16 hours produced results that correlated well with the 43.3/sup 0/C, 32 week storage for the gasoline samples, but not for the jet fuels. HPLC and GC analyses of the samples before and after storage indicated that the gasolines lost some of the lighter components during storage, but the jet fuels showed very little change in composition with storage. IR and GPC analyses of the gums revealed a high concentration of oxygenated material and some high molecular weight material, indicating the gum formation is primarily the result of oxidation reactions with some polymerization. Elemental analyses showed that nitrogen and sulfur compounds tended to concentrate in the gum.
- OSTI ID:
- 7089393
- Journal Information:
- Hydrocarbon Process.; (United States), Journal Name: Hydrocarbon Process.; (United States) Vol. 59:7; ISSN HYPRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010500 -- Coal
Lignite
& Peat-- Products & By-Products
010600* -- Coal
Lignite
& Peat-- Properties & Composition
013000 -- Coal
Lignite
& Peat-- Transport
Handling
& Storage
02 PETROLEUM
024000 -- Petroleum-- Storage-- (-1989)
04 OIL SHALES AND TAR SANDS
040500 -- Oil Shales & Tar Sands-- Properties & Composition
AGING
BITUMENS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUIDS
COMPARATIVE EVALUATIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASOLINE
GUMS
INFRARED SPECTRA
JET ENGINE FUELS
LIQUID FUELS
LIQUIDS
MINERAL OILS
NITROGEN COMPOUNDS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PETROLEUM PRODUCTS
SEPARATION PROCESSES
SHALE OIL
SHALE OIL FRACTIONS
SPECTRA
STABILITY
STORAGE
SULFUR COMPOUNDS
SYNTHESIS
SYNTHETIC FUELS
SYNTHETIC PETROLEUM
TAR