| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of producing a gasoline base material in good yield, wherein the gasoline base material has a sulfur content of 1 mass ppm or lower and octane number of 100 or larger. SOLUTION: The method of producing the gasoline base material includes: a first step of obtaining heavy naphtha by hydrocracking a predetermined light cycle oil, wherein the heavy naphtha has density at 15°C of 0.76 to 0.80 g/cm<SP POS="POST">3</SP>, an initial boiling point of 70 to 90°C, an end point of 150 to 170°C, a sulfur content of 0.1 to 20 mass ppm, and a naphthene content of 25 to 45 mass%; and a second step of devulcanizing the heavy naphtha thus obtained until the sulfur content becomes 1 mass ppm or lower, and thereafter catalytically reforming the resultant heavy naphtha, thereby obtaining a desired gasoline base material in the yield of 20 mass% or more based on the light cycle oil. COPYRIGHT: (C)2013,JPO&INPIT |
