| 摘要 |
A catalyst composite is disclosed. Also disclosed is its use for dehydrogenation reactions. The catalyst composite comprises a Group VIII nob le metal component, a Group IA or IIA metal component, and a component selected from the group consisting of tin, germanium, lead, indium, gallium, thallium , or mixtures thereof, all on an alumina support comprising essentially theta- alumina, having a surface area from 50 to 120 m2/g, an apparent bulk density of at 0.5g/cm3 and a mole ratio of the Group VIII noble metal component to t he component selected from the group consisting of tin, germanium, lead, indium , gallium, thallium or mixtures thereof in the range from 1.5 to 1.7. |
