| 摘要 |
<p>The invention relates to a catalyst for selective hydrogenating unsaturated hydrocarbon, and a preparation and an application of the same, particularly, a catalyst for selective hydrogenating C2-C4 alkine or dialkene in petroleum hydrocarbon pyrolytic cracking process to corresponding alkene. The catalyst comprises a support, active component palladium and rare earth metal, and aids metal of bismuth, silver and others. The catalyst can hydrogenate in high selectivity the unsaturated hydrocarbon, such as alkyne, under the condition of high space velocity. At the same time, the production of green oil and the amount of carbon deposition on the catalyst are very low. The catalyst is very suitable for industrialized cracking process.</p> |
