Fuel and related compositions – Liquid fuels – Aluminum or heavy metal – other than lead – containing
Patent
1986-08-15
1988-05-10
Dixon, Jr., William R.
Fuel and related compositions
Liquid fuels
Aluminum or heavy metal, other than lead, containing
44 77, 44 78, 123 1A, C10L 118, C10L 122
Patent
active
047432730
ABSTRACT:
The octane requirement increase phenomenon in a spark ignition internal combustion engine is controlled by introducing with the combustion charge a fuel composition containing an octane requirement increase-inhibiting amount of a combination of compounds, the combination comprising (1) a gasoline soluble amide and (2) a gasoline soluble ketone. Usually the two compounds are each added to the fuel in a concentration between about 0.001 and 3 weight percent of the fuel. In particular, the combination of N,N-dibutyl formamide and either benzophenone or methylcyclohexanone provides an effective octane requirement increase-inhibiting additive for unleaded gasoline.
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Brass Stephen
Croudace Michael C.
Wusz Timothy
Bostich June M.
Dixon Jr. William R.
McAvoy E.
Sandford Dean
Union Oil Company of California
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