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Bulk phase catalyst capable of doing not generate waste liquid, and preparation method thereof and hydrogenation catalyst containing bulk phase catalyst

A bulk catalyst and waste liquid technology, applied in chemical instruments and methods, physical/chemical process catalysts, hydrocarbon oil treatment products, etc., can solve problems such as low catalytic activity and environmental pollution, to avoid pollution and save cumbersome treatment The effect of steps

Pending Publication Date: 2020-04-10
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The main purpose of the present invention is to provide a bulk catalyst that does not generate waste liquid, its preparation method, and a hydrogenation catalyst containing it, so as to overcome the defects of low catalytic activity of the hydrogenation catalyst and pollution to the environment in the prior art.

Method used

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  • Bulk phase catalyst capable of doing not generate waste liquid, and preparation method thereof and hydrogenation catalyst containing bulk phase catalyst
  • Bulk phase catalyst capable of doing not generate waste liquid, and preparation method thereof and hydrogenation catalyst containing bulk phase catalyst

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preparation example Construction

[0035] The invention provides a method for preparing a bulk catalyst that does not generate waste liquid. The bulk catalyst that does not generate waste liquid is used for hydrogenation reactions of petroleum products. The preparation method includes the following steps:

[0036] Step 1, dissolving the compound containing group VIB elements in a solvent to prepare a solution, and adjusting the pH value of the solution to 6-11;

[0037] Step 2, mixing the solution obtained in step 1 with a powder compound containing Group VIII elements, and stirring evenly to obtain a mixture;

[0038] Step 3, placing the mixture obtained in step 2 in an airtight container for reaction, the reaction time is at least 10 minutes, and the reaction temperature is 5-75°C; and

[0039] Step 4, heating the mixture to 80-200°C for reaction, the reaction time is at least 1 hour, and drying to obtain a bulk catalyst;

[0040] Wherein, the volume of the solvent is 1 to 2 times the saturated water absorpt...

Embodiment 1

[0055] Weigh 8.83g of ammonium heptamolybdate and 13.48g of ammonium metatungstate, and add them into 10g of water to prepare a solution. In the solution, ammonia water with a mass concentration of 25% was added dropwise until the pH value of the solution was 9, then mixed with 12.54 g of basic nickel carbonate, and stirred evenly. The system was placed in a closed reactor, reacted at 35°C for 2 hours, then heated to 150°C, reacted for 2 hours, then cooled, and the obtained wet solid was dried at 120°C for 4 hours. A bulk catalyst is obtained.

[0056] In this embodiment, during the reaction process of the system at 35°C, bulk catalyst seeds are gradually generated, and the specific reaction mechanism is: the low-temperature reaction conditions provided by the present invention promote the generation of heptamolybdate ions and Ni ions present in the solution. rearrangement, so that a large number of generated (NH 4 ) 4 h 6 NiMo 6 o 24 ·5H 2 O, carry out XRD test to the ...

Embodiment 2

[0058] Weigh 4.41g of ammonium heptamolybdate and 26.96g of ammonium metatungstate, and add them into 20g of water to prepare a solution. In the solution, add 4.01g of urea, the pH value of the solution is 8, then mix the solution with the mixed powder of 12.03g of basic nickel carbonate and 0.57g of basic cobalt carbonate, and stir evenly. The system was placed in a closed reactor, reacted at 45°C for 3 hours, then heated up to 120°C, reacted for 3 hours, then cooled, and the obtained wet solid was dried at 120°C for 4 hours. A bulk catalyst is obtained.

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Abstract

The invention discloses a bulk phase catalyst capable of doing not generate waste liquid, and a preparation method thereof and a hydrogenation catalyst containing the bulk phase catalyst, wherein thebulk phase catalyst is used for hydrogenation reactions of petroleum products. The preparation method comprises the following steps: 1, dissolving a compound containing VIB group elements in a solventto prepare a solution, and adjusting the pH value of the solution to 6-11; 2, mixing the solution obtained in the step 1 and a powdery compound containing VIII family elements, and uniformly stirringto obtain a mixture; 3, putting the mixture obtained in the step 2 into a closed container, and carrying out a reaction for at least 10 minutes at a reaction temperature of 5-75 DEG C; and 4, heatingthe mixture to 80-200 DEG, carrying out a reaction for at least one hour, and drying to obtain the bulk phase catalyst, wherein the volume of the solvent is 1-2 times the saturated water absorption volume of the compound containing the VIII group element. The method has the characteristic of no reaction waste liquid in the catalyst preparation process, and the obtained catalyst has high catalyticactivity.

Description

technical field [0001] The invention belongs to the field of ultra-deep hydrodesulfurization, and in particular relates to a bulk phase catalyst that does not generate waste liquid, a preparation method thereof, and a hydrogenation catalyst containing the bulk phase catalyst. Background technique [0002] With the advancement of the National V diesel standard, the S content in diesel needs to be further reduced to below 10ppm. In the study of the relationship between the sulfur content in the diesel sample and the catalyst bed during the hydrodesulfurization process, without changing the operating conditions, national III diesel oil (S content is not higher than 350ppm) or national IV diesel oil (S content is not high When upgrading to National V diesel oil, the bed volume of the catalyst needs to be increased to 2.59 times or 1.39 times of the original, which will significantly increase the equipment investment of the refinery. In order to save equipment investment funds, ...

Claims

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Application Information

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IPC IPC(8): B01J27/24C10G45/08
CPCB01J27/24B01J27/19C10G45/08C10G2400/04C10G2300/202Y02P20/52
Inventor 葛少辉李荣观赵秦峰侯远东吴璇鲁旭王书芹兰玲陈菲
Owner PETROCHINA CO LTD
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