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A kind of hydrocracking catalyst and its preparation method and application

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems such as the need to improve catalytic activity, achieve uniform distribution of active metals, shorten production cycle, and large pore volume Effect

Active Publication Date: 2021-04-02
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This catalyst has a high content of hydrogenation active components, but it can only treat feedstock oil with a dry point of 531°C, and the catalytic activity needs to be improved

Method used

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  • A kind of hydrocracking catalyst and its preparation method and application

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preparation example Construction

[0022] A method for preparing a hydrocracking catalyst provided by an aspect of the embodiments of the present invention includes:

[0023] 1) Carry out water vapor spray modification treatment to graphene, obtain modified graphene;

[0024] 2) mixing the aluminum hydroxide dry rubber powder with the modified graphene obtained in step 1) to obtain a carrier;

[0025] 3) The aqueous solution of the precursor of the metal active component is provided as the impregnating solution, the precursor of the metal active component is selected from water-soluble compounds containing Group VIB and / or Group VIII metal elements, and the metal active component is selected from metal oxide, then impregnating the carrier obtained in step 2) in the impregnating solution, and then performing microwave drying to obtain a mixture of loaded metal components;

[0026] 4) uniformly mixing the mixture of loaded metal components obtained in step 3) with molecular sieves, and performing rolling, moldin...

Embodiment 1

[0087] Thickness 2.0nm, particle size 2.5μm, specific surface area 750m 2 2.1 g of graphene powder per gram was sprayed and modified with water vapor at 0.25 MPa and 100° C. for 5 minutes to obtain bulky modified graphene. Mix this modified graphene with 200g of aluminum hydroxide dry rubber powder, and use the above prepared tungsten-nickel impregnation solution, the concentration is 27.0g metal (calculated as oxide) / 100mL solution, the impregnation temperature is 25°C, liquid-solid The ratio is 4:1, impregnating aluminum hydroxide dry rubber powder mixed with modified graphene, the impregnation time is 7.0 hours, and microwave drying at 150 ° C for 5 hours, and crushed into 180 meshes to obtain the modified graphene containing metal components. Graphene aluminum hydroxide dry rubber powder mixture (that is, the mixture of the above-mentioned loaded metal components, the dry basis is 72.3%).

[0088] Get the above-mentioned modified graphene aluminum hydroxide dry rubber pow...

Embodiment 2

[0090] The thickness is 2.5nm, the particle size is 1.8μm, and the specific surface area is 600m 2 2.0 g of graphene powder per gram was sprayed and modified with water vapor at a pressure of 0.18 MPa and 150° C. for 3 minutes to obtain bulky modified graphene. Mix this modified graphene with 200g of aluminum hydroxide dry rubber powder, and use the prepared molybdenum-cobalt impregnation solution, the concentration is 22.3g metal (calculated as oxide) / 100mL solution, the impregnation temperature is 20°C, and the liquid-solid ratio 6:1, impregnated aluminum hydroxide dry rubber powder mixed with modified graphene, the impregnation time was 2 hours, and dried in microwave at 100°C for 10 hours, and crushed into 180 meshes to obtain modified graphite containing metal components Aluminum hydroxide dry rubber powder mixture (that is, the mixture of metal-loaded components mentioned above, the dry basis is 69.1%).

[0091] Get the above-mentioned modified graphene aluminum hydroxi...

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Abstract

The invention discloses a hydrocracking catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: performing water vapour spraying and modifying treatment on graphene to obtain modified graphene; uniformly mixing aluminium hydroxide dry glue powder with the modified graphene to obtain a carrier; providing an aqueous solution of a precursor of a metal active ingredient as a soaking solution, wherein the precursor of the metal active ingredient is selected from a water-soluble compound comprising VIB-family and / or VIII-family metal elements; the metal active ingredient is selected from a metal oxide; the carrier is soaked into the soaking solution, is subjected to microwave drying, is uniformly mixed with a molecular sieve, and isground, formed, dried and roasted to obtain the hydrocracking catalyst. The preparation method is simple, is low in cost, has the advantages of being good in activity, great in pore volume, great inspecific surface area and great in strength, is suitable for treating worse raw oil with a high dry point (higher than 560 DEG C), and has good activity stability.

Description

technical field [0001] The invention relates to the field of preparation of hydrocracking catalysts, in particular to a hydrocracking catalyst suitable for treating inferior raw materials, its preparation method and application. Background technique [0002] The recovery of the world economy and the rapid development of my country's economy have increased the demand for light fuel oil in domestic and foreign oil markets. On the other hand, more and more stringent environmental protection regulations have also made hydrocracking technology, which can convert low-quality raw materials into light and clean fuels, more and more widely used. [0003] In recent years, my country's air quality has become worse and worse, and there is an urgent need for cleaner vehicle motors to transport fuel oil; Catalytic external oil slurry, catalytic heavy cycle oil, etc. These raw materials contain high content of residual carbon and asphaltenes. In addition, more coal-based oil fixed-bed hyd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/16B01J35/10C10G47/20
CPCB01J29/166B01J35/1019B01J35/1038B01J35/1042B01J2229/18C10G47/20C10G2300/1096
Inventor 尹宏峰许杰
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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