Method for preparing hydrocracking catalyst

Abstract

The invention discloses a method for preparing a hydrocracking catalyst, which comprises the following steps of: firstly, selecting powder of a hydrocracking catalyst carrier material which at least comprises one acid cracking material; then preparing metal salt solution containing hydrogenation active ingredients; impregnating the powder of the carrier material by the metal salt solution; filtering, drying and grinding the impregnated powder of the carrier material; adding a peptizer or an adhesion agent into the obtained product; carrying out molding after sufficiently grinding; and drying and roasting to obtain the catalyst product. The hydrocracking catalyst prepared by the method disclosed by the invention has high content of the hydrogenation active ingredients, also has larger pore volume, aperture and specific surface area and is more suitable for the hydrocracking process of heavy vacuum gas oil with a higher boiling point.

Description

technical field

[0001] The invention relates to a method for preparing a hydrocracking catalyst, in particular to a method for preparing a hydrocracking catalyst for heavy distillate oil. technical background

[0002] Hydrocracking technology has the characteristics of strong adaptability to raw materials, great flexibility in production operations and product plans, and good product quality. It can directly convert various heavy and low-quality feedstocks into high-quality jet fuel, diesel, and lubricating oil base materials that are urgently needed by the market. As well as chemical naphtha and tail oil steam cracking raw materials for ethylene production, it has become one of the most important heavy oil deep processing processes in modern oil refining and petrochemical industries, and has been increasingly widely used at home and abroad.

[0003] However, due to the deterioration of crude oil quality year by year, a substantial increase in imported high-sulfur crude oil,...

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