LEAD-FREE GASOLINE COMPOSITION AND ITS PREPARATION METHOD

Japanese Patent JP3942794

B2

PROBLEM TO BE SOLVED: To provide a unleaded gasoline composition and its manufacturing method which is excellent in antiknock property under actual driving conditions and incorporates a due consideration to the environments such as the suppression of photochemical oxidants.
SOLUTION: The unleaded gasoline composition comprises a content of benzene of ≤1.0 vol.%, Reid method vapor pressure of 40.0 to 65.0 kPa, motor method octane number of 80.0 to 86.0 and distribution method octane number of 88.0 to 95.0, and preferably research octane number of 89.0 to 91.0 and a sulfur content of ≤50 mass ppm. Further, the preparation method of the lead- free gasoline composition comprises compounding a heavy-duty catalytic cracking gasoline base of 40 to 80 vol.%.

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Kenichi Koizumi

JP2000106908A

July 11, 2007

April 07, 2000

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Jomo Technical Research Center Co., Ltd.

C10L1/06; C10L1/00; C10L1/16; C10L10/10; (IPC1-7): C10L1/06; C10L1/00; C10L1/16

JP11236580A
JP9111259A
JP5070781A
JP10102073A

Kiyoshi Fujino
Kyoko Yoshimi
Kiyonori Fujino

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