MESOPOROUS AND MACROPOROUS NICKEL CATALYST HAVING A MEDIAN MACROPOROUS DIAMETER OF MORE THAN 200 NM AND ITS USE IN HYDROGENATION

摘要

The invention relates to a supported catalyst comprising a calcined, predominantly aluminum oxide support and an active phase comprising nickel, the nickel content being between 5 and 65% by weight of said element relative to the total mass of the catalyst, said active phase not comprising no Group VIB metal, the nickel particles having a diameter of less than or equal to 20 nm, said catalyst having a mesoporous median diameter between 8 nm and 25 nm, a macroporous median diameter greater than 200 nm, a mesoporous volume measured by mercury porosimetry greater than or equal to 0.30 mL / g and a total pore volume measured by mercury porosimetry greater than or equal to 0.34 mL / g. The invention also relates to the process for preparing said catalyst and its use in a hydrogenation process.