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Method for preparing hydrocracking catalyst

A technology for catalyst and hydrogenation activity, applied in the field of preparation of hydrocracking catalysts, can solve the problems of low utilization rate of metals, limitation of metal content in preparation of catalysts, limitation of pore structure of catalysts, etc., so as to reduce the phenomenon of capillary resistance, low cost, A stable effect

Active Publication Date: 2013-10-09
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Through the above analysis, the impregnation method can be used to prepare the catalyst, which can give full play to the performance of the hydrogenation metal, but the metal content of the catalyst is greatly limited; although the co-precipitation method can prepare a hydrogenation catalyst with a high metal content, the utilization of the metal The rate is not high, and the pore structure of the catalyst is also limited

Method used

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  • Method for preparing hydrocracking catalyst
  • Method for preparing hydrocracking catalyst
  • Method for preparing hydrocracking catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] According to the weight of the final hydrocracking catalyst, it contains 15% of Y molecular sieve, 25% of amorphous silicon aluminum, 12% of nickel oxide, 35% of tungsten oxide, and the balance is aluminum oxide. , Aluminum hydroxide dry rubber powder 1 and amorphous silica-alumina dry rubber powder 1.

[0032] The catalyst preparation process is as follows: fully mix Y molecular sieve, aluminum hydroxide dry rubber powder and amorphous silica-alumina dry rubber powder, mix with the prepared solution containing nickel and tungsten compounds for hydrogenation components, impregnate and beat for 120 minutes, and suction filter , dried at 120°C for 4 hours, then pulverized, and sieved with 180 mesh to obtain a powder. Mix the powder with an appropriate amount of extrusion aid, scallop powder, and add a concentration of 4gHNO 3 / 100ml dilute nitric acid for peptization, extruded into a clover strip with a diameter of 1.5mm. Then it was dried at 120°C for 4 hours and calci...

Embodiment 2

[0034] According to the weight of the final hydrocracking catalyst, it contains 25% of Y molecular sieve, 10% of amorphous silicon aluminum, 10% of nickel oxide, 30% of tungsten oxide, and the balance is alumina. , Aluminum hydroxide dry rubber powder 1 and amorphous silica-alumina dry rubber powder 2.

[0035] The preparation method is the same as in Example 1, and the obtained catalyst number is HC-2.

Embodiment 3

[0037] According to the weight of the final hydrocracking catalyst, it contains 30% of Y molecular sieve, 10% of amorphous silica-alumina, 10% of nickel oxide, 30% of tungsten oxide, and the balance is alumina. , Aluminum hydroxide dry rubber powder 2 and amorphous silica-alumina dry rubber powder 1.

[0038] The preparation method is the same as in Example 1, and the obtained catalyst number is HC-3.

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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,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/16
Inventor 杜艳泽王凤来关明华刘昶
Owner CHINA PETROLEUM & CHEM CORP
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