If your focus is specifically petrochemical catalysts , I would organize your business around these major catalyst families: # Catalyst family Examples Main petrochemical use 1 FCC catalysts USY, REUSY, ZSM-5 Heavy oil → gasoline/LPG/olefins 2 Hydrocracking NiMo/Al₂O₃, NiW/Al₂O₃ Heavy feed → diesel/jet/gasoline 3 Hydrotreating CoMo/Al₂O₃, NiMo/Al₂O₃ Sulfur/nitrogen removal 4 Reforming Pt/Al₂O₃, Pt-Re/Al₂O₃ Naphtha → high-octane products + H₂ 5 Isomerization Pt/mordenite, Pt/zeolite Improve gasoline octane 6 Alkylation Acid/solid-acid systems Gasoline blending components 7 Olefin catalysts ZSM-5, SAPO materials Olefin production/conversion 8 Polymerization Ziegler–Natta, metallocenes PE/PP production 9 Methanol-to-olefins SAPO-34 Methanol → ethylene/propylene 10 Methanol-to-gasoline ZSM-5 Methanol → hydrocarbons 11 Syngas catalysts Fe, Co Fischer–Tropsch hydrocarbons 12 Methanol synthesis Cu/ZnO/Al₂O₃ Synga...