Hydrogenation of Tar Precursors in Pyrolysis Gasoline.

Experimental series were focused on catalytic hydrogenation of unsaturated components in pyrolysis gasoline: styrene, consecutive hydrogenation of dicyclopentadiene (DCPD) via dihydrodicyclopentadiene (DHDCPD) to tetrahydrodicyclopentadiene (THDCPD), indene, allylbenzene, 4-methylstyrene, 3-methylstyrene and 4-methylstyrene. Hydrogenation was investigated at temperature 30, 40 a 60°C and under hydrogen pressure 2 a 5 bar using Noblyst Degussa 1505 (0,1 hm. % Pd/ ? - Al2O3) catalyst