| 摘要 |
<p>A catalyst for hydrodemetallation of a heavy hydrocarbon stream comprising particles of alumina support having a bimodal pore size distribution and catalytically active amounts of metal from Group VIB distributed uniformly throughout and on the surface of the particles, wherein at least 20 % of the total volume of pores contained in said catalyst is in pores having a pore diameter of at least 1000 Å and wherein at least 50 % of the total volume of pores contained in said catalyst is in pores having a pore diameter of no greater than 350 Å. A method of making such catalyst and a process for removing metals from a heavy hydrocarbon stream using said catalyst.</p> |
