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Method for preparing hydrocracking catalyst for producing high-quality chemical material

A hydrocracking and catalyst technology, which is applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of insufficient synergy effect, and achieve low price, easy operation and simple preparation method. Effect

Inactive Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The carrier material is prepared by introducing molecular sieve slurry in the process of amorphous silica-alumina gelation, which improves the distribution of molecular sieves in the silica-alumina carrier, but the synergistic effect of the two cannot be fully exerted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Based on the weight of the final hydrocracking catalyst, it contains 30% of Y molecular sieve, 5.0% of nickel oxide, 22.0% of tungsten oxide, and the balance is alumina. Select the aforementioned catalyst preparation raw materials: modified Y molecular sieve and aluminum hydroxide dry rubber powder.

[0033] The catalyst preparation process is as follows: put the modified Y-type molecular sieve and aluminum hydroxide dry rubber powder into a container, add distilled water for beating, and the solid-liquid volume ratio is 1:10. The stirring speed of the stirrer is 900 rev / min, the ultrasonic instrument is turned on, the frequency is 100kHz, and the ultrasonic power is 20W / mL based on the slurry volume. Stir for 3h, centrifuge, separate solid from liquid, and dry at 120°C for 4 hours. Mix the dry filter cake with extrusion aids and sage powder and put it into a roller compactor for rolling, adding a concentration of 4gHNO 3 / 100mL dilute nitric acid solution for peptiza...

Embodiment 2

[0036] Based on the weight of the final hydrocracking catalyst, it contains 60% of Y molecular sieve, 5.0% of nickel oxide, 15.0% of molybdenum oxide, and the balance is alumina. Select the aforementioned catalyst preparation raw materials: modified Y molecular sieve and aluminum hydroxide dry rubber powder.

[0037] The preparation method is the same as in Example 1, wherein the ultrasonic frequency is 150 kHz, the ultrasonic power is 40 W / mL based on the volume of the slurry, and stirred for 2 hours. The obtained catalyst number is FC-2.

Embodiment 3

[0039] Based on the weight of the final hydrocracking catalyst, it contains 10% of modified Y molecular sieve, 50% of amorphous silicon aluminum, 5.0% of nickel oxide, 22.0% of tungsten oxide, and the balance is alumina. Select the aforementioned catalyst preparation raw materials: modified Y molecular sieve, amorphous silica-alumina dry rubber powder and aluminum hydroxide dry rubber powder.

[0040] The preparation method was the same as in Example 1, wherein the ultrasonic frequency was 80 kHz, the ultrasonic power was 50 W / mL based on the volume of the slurry, and the catalyst was stirred for 3 hours to obtain a catalyst numbered as FC-3.

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PUM

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Abstract

The invention relates to a method for preparing a hydrocracking catalyst. The method comprises the following steps: (1) pulping the raw material powder of a hydrocracking catalyst carrier component in water, stirring and carrying out ultrasonic treatment while pulping, and then, filtering, and drying a filter cake, wherein the hydrocracking catalyst carrier component comprises a molecular sieve, and at least one of aluminium oxide, amorphous sliicon-alumininm, amorphous silicon-magnesium and clay; (2) molding, drying, roasting and activating the dried materials to prepare a catalyst carrier; (3) loading and hydrogenating an active component by an impregnation method to obtain the hydrocracking catalyst. Compared with the prior art, the method for preparing the hydrocracking catalyst can further promote the synergistic effect between different components, and improves the use performance of the catalyst.

Description

technical field [0001] The invention relates to a preparation method of a hydrocracking catalyst, in particular to a preparation method of a hydrocracking catalyst for producing high-quality chemical raw materials. technical background [0002] In the 21st century, the consumption growth of petrochemical products has exceeded the growth of petroleum products, and large-scale ethylene and large-scale aromatics plants will become an important direction for petrochemical development. The refinery produces naphtha in accordance with the principle of "preferable ethylene for ene, suitable fragrance for fragrance, and suitable oil for oil". It is necessary to provide raw materials for ethylene cracking and catalytic reforming to produce high-octane gasoline Blending components and aromatic raw materials. Hydrocracking technology has become the core of the refinery's oil-chemical-fiber combination due to its strong feedstock adaptability, high production flexibility, good product ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/16B01J29/48C10G47/20
Inventor 杜艳泽张晓萍王凤来
Owner CHINA PETROLEUM & CHEM CORP