To provide a process for production of high-octane gasoline by selective dehydrogenation of cycloparaffins without their dehydrogenation or cracking to gas in the presence of branched paraffins.
The process for production of high-octane gasoline can be a combination of a catalytic dehydrogenation step R1, a catalytic isomerisation step R2, and one or more separation steps S, wherein the selective dehydrogenation comprises a catalyst containing a group VIII metal supported on a substantially non-acidic porous material with concentration of acidic sites lower than 1 μmol/g. The catalyst in the selective dehydrogenation typically comprises palladium, platinum, rhodium, iridium or mixtures thereof in an amount of 0.1 to 1.0 wt% supported on a carrier material selected from silica, alumina, zirconia, titania, or mixtures thereof, other oxides, carbons, carbides and nitrides.
Tsuneo Mihara
Okumura Yoshimichi
Blacksmith