| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an unleaded gasoline composition for a cylinder direct injection type gasoline engine, the gasoline composition reducing an injector deposit of the cylinder direct injection type gasoline engine. <P>SOLUTION: In the unleaded gasoline composition for the cylinder direct injection type gasoline engine, a distillation amount E120 (vol.%) up to distillation temperature of 120°C and a distillation amount E150 (vol.%) up to 150°C satisfy conditions represented by inequalities (1) E120≤75, (2) 25≤E150-E120≤50, and (3) E150≥85; 50 vol.% distillation temperature T50 (°C) satisfies inequality (4) 85≤T50≤105, an 8C aromatics content V(C8A) (vol.%), a 9C aromatics content V(C9A) (vol.%), a 10C aromatics content V(C10A) (vol.%), and an≥11C aromatics content V(C11+A) (vol.%) satisfy conditions represented by inequalities (5) 20≤V(C8A)+V(C9A)+V(C10A)≤45, and (6) V(C11+A)≤2; and a sulfur content is 10 mass ppm or less. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
