Dual purpose fuel for gasoline driven automobile and fuel cell system, and system for storage and/or supply thereof

Abstract

The present invention provides a dual purpose fuel suitable for an automotive spark ignition (SI) engine and a fuel cell system and also provides a storage and/or supply system of said dual purpose fuel. A dual purpose fuel for use in both an automotive spark ignition (SI) engine and a fuel cell system wherein said fuel comprises hydrocarbons of 50 ppm by mass or less of sulfur content; 30 vol. % or more of saturates; 50 vol. % or less of aromatics; and 35 vol. % or less of olefins; wherein the ratio of paraffin in said saturates is 60 vol. % or more; the ratio of branched paraffin in said paraffin is 70 vol. % or more; the density of said hydrocarbons is 0.78 g/cm3 or less; the initial boiling point in distillation is 24° C. or higher and 80 ° C. or lower, the 50 vol. % distillation temperature (T50) is 60° C. or higher and 120° C. or lower, the 90 vol. % distillation temperature (T90) is 100° C. or higher and 190° C. or lower, the final boiling point in distillation is 130° C. or higher and 230° C. or lower; the Reid vapor pressure of said hydrocarbons is 10 kPa or more and less than 100 kPa; and the research octane number of said hydrocarbons is 89.0 or more, and a storage and/or supply system of said dual purpose fuel, wherein said dual purpose fuel is stored in a fuel storage apparatus for an automotive spark ignition (SI) engine, and fed, as demanded, to the automotive spark ignition (SI) engine or to the fuel cell system from the fuel storage apparatus.

Dependencies are inferred from the claim text.