Fuel compositions

Details Fuel compositions Fuel compositions

C - Chemistry, Metallurgy

10

L

C10L 1/06 (2006.01)

Patent

CA 2385720

Unleaded blend compositions, as well as formulated gasolines containing them have a Motor Octane Number (MON) of at least 80 comprising at least 10 % of component (a), which is at least one branched chain alkane of 8-12 carbons with at least 4 methyl or ethyl branches, and as component (b) at least 20 % of at least one, liquid hydrocarbon or mixture thereof of bp60-160 ~C, especially of MON value at least 70 and RON at least 90 or as component (b) at least 20 % of one or more refinery streams. The component (a) gives rise to reduced emissions to the composition or gasoline on combustion.

Compositions de mélange sans plomb, ainsi qu'essence contenant lesdites compositions, qui possèdent un indice d'octane moteur (IOM) d'au moins 80. Ces compositions contiennent au moins 10 % d'un constituant (a) qui est au moins un alcane à chaîne ramifiée possédant 8 à 12 atomes de carbone, avec au moins 4 branches méthyle ou éthyle, et en tant que constituant (b) au moins 20 % d'au moins un hydrocarbure liquide ou mélange d'hydrocarbures à point d'ébullition de 60 à 160 ·C, ayant un IOM d'au moins 70 et un indice d'octane recherche d'au moins 90, ou en tant que constituant (b) au moins 20 % d'un ou plusieurs flux de raffinerie. Le constituant (a) entraîne une réduction des émissions lors de la combustion de ladite composition ou de ladite essence.

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