| abstract |
The invention discloses a heterogeneous catalyst for selective hydrogenation reaction of acetylene compounds and application thereof, wherein the heterogeneous catalyst comprises 1-10 wt% of noble metal particles, 9-90 wt% of titanium oxide and 9-90 wt% of porous carbon. Compared with the common commercial activated carbon-supported Pd catalyst or titanium dioxide-supported Pd catalyst, the heterogeneous catalyst prepared by the invention has an obvious synergistic effect when being used for catalyzing selective hydrogenation reaction of alkyne compounds to prepare alkene compounds, and the introduction of the porous carbon can promote the diffusion of substrates, and further regulate and control the interaction between noble metal particles and titanium oxide, so that the noble metal particles are rich in charges, and the catalytic activity and selectivity of hydrogenation of the alkyne compounds are improved. When the catalyst is used for catalyzing the phenylacetylene hydrogenation reaction to prepare styrene, the selectivity of the styrene is more than 95 percent, and the conversion rate of the phenylacetylene is 100 percent. |