Ethylene Conversion over Catalysts Based on Solid Superacids and Heteropoly Acids

Resumo

Catalytic properties of solid superacids (WO₃/ZrO₂ and SO₄/ZrO₂), and monolith and H-Beta zeolite-supported phosphotungstic heteropoly acid in gas-phase alkylation of benzene with ethylene to ethylbenzene and in the side reaction of ethylene oligomerization are studied. It was found that H-Beta zeolite had the highest activity and selectivity to ethylbenzene. The use of solid superacid (WO₃/ZrO₂) was shown to be more efficient in low-temperature oligomerization of ethylene.