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High-octane-rating gasolines

  • US 4,824,552 A
  • Filed: 05/19/1988
  • Issued: 04/25/1989
  • Est. Priority Date: 05/20/1987
  • Status: Expired due to Fees
First Claim
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1. A gasoline free from lead and of high octane number which comprises base gasolines so blended as to meet the distillation and composition characteristics of equations (I) to (VI) ##EQU5## where T30 is a 30% distillation temperature, T70 is a 70% distillation temperature, T90 is a 90% distillation temperature, VO(WHOLE) is an olefins content in the total gasoline, VA(WHOLE) is an aromatics content in the total gasoline, VO(≦

  • T30) is an olefins content in the total volume of a fraction boiling at or below T30, and VA(>

    T70) is an aromatics content in the total volume of a fraction boiling at or above T70.

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