Improving storage stability of gasoline using elevated antioxidant concentrations

Conference · Sat Apr 01 04:00:00 EST 1995

OSTI ID:68685

Sommer, S ^[1]; Luria, D ^[2]; Lavie, I ^[3]; Sufrin, J; Weiss, A; Shuftan, M ^[4]

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1. Israel Fuel Corp. LTD, Tel Aviv (Israel)
2. Israeli Ministry of Energy, Haifa (Israel)
3. Bromine Compounds LTD, Be`er Sheva (Israel)
4. Israeli Defense Forces, Military (Israel)

The purpose of this study was to examine the feasibility of increasing storage-stability of gasoline by blending it with elevated concentrations of standard antioxidants, normally added at low concentrations to gasolines. It was thought that, by raising the concentration of these additives in the gasoline from 25 ppm to 100 ppm, the storage stability of the fuel can be improved. In this study, two types of antioxidants (an aromatic diamine type and an alkylphenol type), and a mixture of the two, were added at different concentrations to two different gasoline blends. The various blends were stored in drums, simulating tank storage conditions, for a period of 25 months. Samples were drawn at varying intervals over the test duration and tested for Existent Gum, Potential Gum, Induction Period and other properties (according to standard ASTM test procedures). It was found that raising the concentrations of the aromatic amine antioxidant adversely effected the storage stability of the gasoline blends, whereas elevated concentrations of the alkylphenol antioxidant indeed improved the gasoline`s stability.

• Research Organization: USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States). Office of Technical Management
• OSTI ID: 68685
• Report Number(s): CONF-941022--Vol.2; ON: DE95009411
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ANTIOXIDANTS
BROMINE
GASOLINE
OXIDATION
STABILITY
STORAGE