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A catalyst composition and preparation method thereof

A composition and catalyst technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of poor interaction catalyst strength, no active metal coordination effect, high catalyst metal content, etc.

Active Publication Date: 2007-04-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high metal content of the catalyst prepared by this method, there is often a lack of sufficient interaction between the metal and alumina, resulting in poor catalyst strength
The active component part is composed of a large number of metals, and some internal metal components cannot be fully utilized during the formation of Ni-Mo or Ni-Mo-W powder, resulting in loss of activity, and this problem cannot be solved by simple bonding
CN1342102A discloses a mixed metal catalyst, which is obtained by co-precipitating three active metals. Its main disadvantage is that no coordination effect between different active metals has been found
In the prior art, only the types and contents of metals are emphasized, and how to improve the coordination and cooperation between different metals is not involved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The invention provides the preparation method of catalyst, a kind of concrete process step is as follows:

[0020] 1. Ni x W y o z Complex oxide precursors and MoO 3 Preparation of the mixture

[0021] A salt solution containing active metal Ni and W components is added into the reaction tank according to the content ratio of the catalyst components. Nickel-containing salts can be nickel sulfate, nickel nitrate, nickel chloride and the like. The tungsten-containing salt can be sodium tungstate, ammonium metatungstate, etc. After mixing evenly, add the precipitating agent into the above mixture with stirring until a sol mixture is formed. The gelling temperature is 30-100°C, and the gelling pH is 7.0-10.0. After gelling, it can be aged at the gelling temperature for 1-5 hours. Ni in the colloid x W y o z Precursors of composite oxides. It can be filtered or not filtered before and after gelation, adding solid molybdenum trioxide, beating and mixing, and then ...

Embodiment 1

[0034] Add 1000mL of water into the reaction tank, then add 40g of nickel chloride to dissolve, then add 52g of ammonium metatungstate to dissolve, then add 5g of zirconium oxychloride to dissolve, then add 10% ammonia water to form a gel until the pH value is 8, and then gel The temperature is 50°C, aging for 1 hour after forming the gel, and then filtering, adding 600ml of clean water, 16g of molybdenum trioxide and 32g of aluminum hydroxide to the filter cake, beating and stirring evenly, filtering, drying the filter cake at 80°C for 5 hours, and then extruding Molded, washed 3 times with clean water, dried at 120°C for 5 hours, and calcined at 500°C for 4 hours to obtain the final catalyst A. The composition and main properties are shown in Table 2.

Embodiment 2

[0036] According to the method of Example 1, according to the component content ratio of catalyst B in Table 2, add aluminum chloride, nickel chloride, sodium tungstate in the reaction tank, then add 16% ammonia water to form a gel, until the pH value is 9 , the gelling temperature is 80°C, aging for 3 hours after gelling, then filtering, washing the filter cake twice with 500mL clean water, adding clean water and molybdenum trioxide, beating and stirring evenly, filtering, and drying the filter cake at 70°C for 7 hours , and then extruded, washed twice with clean water, dried at 100°C for 8 hours, and calcined at 550°C for 3 hours to obtain the final catalyst B. The composition and main properties are shown in Table 2.

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Abstract

The invention relates to a catalyst compound and relative preparation. Wherein, said compound comprises NixWyO2 compound oxide and MoO3, whose mass ratio is 1:10-10:1, and they are 40-100% of total mass. The inventive preparation comprises that using share deposition method to prepare the forward body of NixWyO2 compound oxide, to be mixed and beaten with MoO3; filtering, shaping and activating. The invention can adjust the cooperation between different metals, to obtain high property, with simple method and low metal loss. And the inventive catalyst is used in deep hydrogen process of hydrocarbons material.

Description

technical field [0001] The present invention relates to a kind of catalyst composition and preparation method thereof, especially bulk phase catalyst composition and preparation method thereof, specifically to the bulk phase method catalyst and preparation method thereof for hydroconversion or hydrogenation treatment of hydrocarbon oil, In particular, it is a bulk catalyst used in deep desulfurization, denitrogenation and other impurity removal processes of hydrocarbon oil and its preparation method. Background technique [0002] Fuel contains S, N and other impurities and aromatics (especially polycyclic aromatics), which will form harmful substances such as SOx, NOx and solid particles during use, which not only endanger human health, but also form acid rain in the air, causing greater pollution and destruction. In the past ten years, many countries including North America, Europe, and Japan have proposed the concept of ultra-low sulfur diesel (ULSD) and continuously form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/85B01J23/883B01J23/888
Inventor 徐学军王继锋刘东香冯小萍王海涛
Owner CHINA PETROLEUM & CHEM CORP
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