Effect of support on catalytic performance for metathesis of butene to propene

The catalysts with SBA-15, MCM-48, SiO₂, and MTS-9 as supports were synthesized with 8% WO₃, and their catalytic performance for metathesis of butene to propene were carried out. The conversion of butene is 30%~37% on the catalysts with SBA-15, MCM-48, and SiO₂ as supports, and that of butene is 37%~42% on WO₃/MTS-9 catalyst. The catalyst characterization results show that the catalytic activities depend on the acidic numbers of catalysts prepared and the distribution of tungstens on the supports used. As a result, the performance of 8% WO₃/MTS-9 catalyst for the titled reaction is best.