| 摘要 |
Process for the demetallation of petroleum crude oil by contacting the oil together with hydrogen with a catalyst having at least one metal or compound thereof of Group VIII and/or Group VI of the Periodic Table as its active material supported on a carrier comprising a zeolite with a SiO2/Al2O3 ratio of at least 5 and a unit cell size of between 24.30 and 24.60. |
