A SELECTIVE HYDROGENATION CATALYST FOR PYROLYSIS GASOLINE

摘要

A SELECTIVE HYDROGENATION CATALYST FOR PYROLYSIS GASOLINE IS DISCLOSED CATALYST MAINLY CONSISTS OF A SUPPORT OF S, A MIXED ALUMINA COVERED BY PALLADIUM AND ALKALI METAL AND/OR ALKALINE-EARTH METAL WHICH ARE DISTRIBUTED LIKE EGG SHELL ON THE SUPPORT SURFACE, AND SAID SUPPORT HAVING O.5~O.9M1/G OF SPECIFIC PORE VOLUME, WHEREIN 4O~2O0 Ǻ PORES ACCOUNT FOR MORE THAN 85% OF THE TOTAL PORE VOLUME, THE SPECIFIC SURFACE AREA BEING 7O~14OM2/G , AND A CRYSTAL TYPE IN THE ALUMINA SUPPORT BEING.O.1M~5% BASED ON THE WEIGHT PERCENTAGE OF S, A MIXED ALUMINA SUPPORT, SAID CATALYST COMPRISING PALLADIUM IN AMOUNT OF O.05~O.4WT%, ALKALI METAL AND/OR ALKALINE-EARTH METAL IN AMOUNT OF O.05~2.0WT%.