| 摘要 |
A novel trimetallic catalyst composite comprises a refractory support having a nominal diameter of at least 650 microns, deposited on which is a uniformly-dispersed platinum component, a uniformly-dispersed tin component, a halogen component, and a surface-impregnated metal component selected from rhodium, ruthenium, cobalt, nickel, and iridium. When this catalyst composite is used in the conversion of hydrocarbons, and particularly in the reforming of hydrocarbons at low pressures, there are significant improvements in activity stability compared to catalysts of the prior art. |
