Motor gasoline stability. Technical Report No. 5

Book · Wed Jan 01 04:00:00 EST 1958

OSTI ID:6158101

Ward, C C; Schwartz, F G

Storage tests of three unleaded gasolines indicated that platformate gasoline was very stable, catalytically-cracked gasoline was very unstable, and hydrogenated catalytically-cracked gasoline was moderately stable. Addition of tetraethyllead to these three gasolines reduced their storage stability and resulted in lead precipitation during storage. Several additional gasoline samples were also tested for stability. A study of UV irradiation as a means of accelerating gum formation showed that if the irradiation was continued for a relatively long period of time as much as eight percent of the gasoline could be converted to gum. Aromatic, olefinic, and paraffin-naphthene portions were separated by silica gel chromatography from each of the fuels and distilled to produce several distillation fractions of each silica gel portion. The gum content before and after storage of each fraction was determined. The fractions were much more unstable than the whole fuel and the most unstable fractions were included in the olefinic and aromatic portions.

• OSTI ID: 6158101
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
024000* -- Petroleum-- Storage-- (-1989)
ADDITIVES
ALKENES
AROMATICS
CATALYTIC EFFECTS
CHROMATOGRAPHY
ELECTROMAGNETIC RADIATION
FUEL ADDITIVES
FUELS
GASOLINE
GUMS
HYDROCARBONS
IRRADIATION
LEAD COMPOUNDS
LIQUID FUELS
MATERIALS TESTING
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
RADIATIONS
SEPARATION PROCESSES
STABILITY
STORAGE
SYNTHESIS
TESTING
ULTRAVIOLET RADIATION
UNLEADED GASOLINE