| abstract |
The invention relates to a process for preparing a hydroconversation catalyst comprising a modified zeolite Y, including the steps of a treatment of a zeolite Y by suspension thereof in a basic pH solution, stopping the previous treatment by neutralization of the zeolite Y containing solution with an acid-containing solution; filtering and washing the recovered modified zeolite Y solid, drying and optionally calcining the modified zeolite Y solid, placing the modified zeolite Y solid obtained from previous step in contact, with stirring, in an ion exchange solution and optional steaming and/or calcining the modified zeolite Y type compound for obtaining the hydroconversion catalyst containing a modified zeolite Y. |