Diesel oil hydrotreating catalyst and method for preparing the same

Abstract

The disclosed catalyst special to low-grade diesel fuel hydrotreatment comprises: given the catalyst, 1-70wt% SiO2-Al2O3 with quasi-thin diaspore structure, 1-60wt% Y-form molecular sieve, and 5-80wt% Al2O3; wherein, given the oxide, 1-15wt% VIII metal constituent, and 10-40wt% VIB metal constituent. The product is prepared by mixing, forming, baking and then adding at least one of former metal constituent.

Description

technical field

[0001] The invention relates to a hydrogenation treatment catalyst and a preparation method thereof, in particular to a diesel oil hydrogenation treatment catalyst and a preparation method thereof. Background technique

[0002] As the market demand for diesel oil increases year by year, producing more diesel oil has become a direction for the development of the catalytic cracking process. FCC diesel is characterized by high content of sulfur, nitrogen and aromatics, low cetane number, poor storage stability, and large emissions of toxic gases during combustion. In the presence of a hydrotreating catalyst, the hydrotreating of diesel oil can remove sulfur, nitrogen and reduce the content of aromatics, so that the quality of diesel oil can be improved.

[0003] Hydrotreating catalysts generally contain a carrier and at least one Group VIB and at least one Group VIII metal component supported on the carrier. Some catalysts also contain ...