| abstract |
PROBLEM TO BE SOLVED: To provide a method for producing low-sulfur gasoline by hydrodesulfurizing catalytic cracking gasoline so as to minimize the decrease in octane number. SOLUTION: The sulfur content is 200 mass ppm or less, And catalytically cracked gasoline containing 10% by volume or more of olefin, as the active metal in the porous carrier, a Group 6 metal and a Group 8 metal in the periodic table, and 0.1% in the Group 8 metal. In the presence of a catalyst supporting 5 to 5 moles of an organic carboxylic acid, a temperature of 200 to 350 ° C., a pressure of 0.5 to 3 MPa, LHSV2-10h -1 and hydrogen oil ratio 100-600N The above problem can be solved by performing hydrodesulfurization so that the desulfurization rate is 95% or less and the olefin hydrogenation rate is 40% or less under L / L reaction conditions. |