| 摘要 |
PROBLEM TO BE SOLVED: To provide a gasoline composition preventing generation of free water caused by ethanol to be an impurity contained in ethyl tertiary-butyl ether (ETBE) in the gasoline composition in which the ETBE is mixed. SOLUTION: In the gasoline composition, a gasoline water clouding point temperature (Twc) satisfies the following (1) to (2). (1) In the case of C<SB>EtOH</SB>≥1,400: Twc<T<SB>L</SB>, (2) in the case of C<SB>EtOH</SB><1,400: Twc<T<SB>L</SB>-(15.7-9×10<SP>-6</SP>×(C<SB>EtOH</SB>)<SP>2</SP>+0.0012×C<SB>EtOH</SB>), wherein C<SB>EtOH</SB>denotes ethanol concentration in the gasoline composition (volume ppm) and T<SB>L</SB>denotes the minimum temperature (°C) in a district and a season at/in which the gasoline composition is used. COPYRIGHT: (C)2011,JPO&INPIT |
