HYDROCRACKING CATALYST COMPRISING A ZEOLITE Y NOT GLOBALLY DEALUMINIZED, AN ELEMENT OF GROUP VB, AND A PROMOTER ELEMENT CHOSEN FROM THE GROUP CONSISTING OF BORON, PHOSPHORUS AND SILICON

摘要

The invention relates to a hydrocrackinh catalyst comprising at least one amorphousor poorly crystallized matrix of the oxide type, at least one element of group V3.preferably niobium, and at least one zeolite Y not globally dealumunized at least onepromoter element chosen from the group consisting of boron phosphorus andsilicon. optionally at least one element chosen from the elements of group VIB andgroup VIII. optionally at least one element of group VIIA. The invention also relatesto the use of this catalyst for hydrocracking hydrocarbon feeds.