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Preparation method for modified ternary metal bulk phase catalyst added with accessory ingredients

A bulk catalyst, ternary metal technology, applied in heterogeneous catalyst chemical elements, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of poor mechanical strength, poor dispersion of catalyst metal active components, and pore structure. Insufficient development and other problems, to achieve the effect of improving the removal rate, improving the diesel desulfurization rate, and improving the hydrodesulfurization reaction activity

Inactive Publication Date: 2017-06-13
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to improve the shortcomings of poor dispersion of catalyst metal active components, insufficient pore structure and poor mechanical strength in the existing non-supported catalyst preparation technology

Method used

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  • Preparation method for modified ternary metal bulk phase catalyst added with accessory ingredients
  • Preparation method for modified ternary metal bulk phase catalyst added with accessory ingredients

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] According to the metal molar ratio of Ni:Mo:W=2:1:1, 9.954 g of nickel acetate tetrahydrate, 5.071 g of ammonium heptamolybdate, and 3.531 g of ammonium metatungstate were weighed. Pour 5.071 g of ammonium heptamolybdate and 3.531 g of ammonium metatungstate into a three-necked flask with a capacity of 500 ml, and dissolve them completely with 300 ml of deionized water at 50 °C to obtain solution A. Use ammonia water as the precipitant to adjust the pH of solution A to 9, and heat the temperature of solution A to 90 °C in a water bath. Pour nickel acetate tetrahydrate into a beaker and dissolve in 20 ml deionized water to obtain solution B. At the same temperature, slowly change solution B and drop it into solution A, and it can be seen that a precipitate is gradually formed. After the dropwise addition, the solution was stirred at 90 °C for 5 h to fully compound the active components. During the stirring process, 1.856 g of Tween and 1.523 g of diatomaceous earth wer...

Embodiment 2

[0031] According to the metal molar ratio of Ni:Mo:W=2:1:1, 11.632 g of nickel nitrate hexahydrate, 5.071 g of ammonium heptamolybdate, and 3.531 g of ammonium metatungstate were weighed. Pour the Mo and W compounds into a three-neck flask with a capacity of 500 ml, and completely dissolve them with 300 ml of deionized water at 50°C to obtain solution A. Use ammonia water as the precipitant to adjust the pH of solution A to 9, and heat the temperature of solution A to 90 °C in a water bath. Pour nickel nitrate hexahydrate into a beaker and dissolve in 20 ml deionized water to obtain solution B. At the same temperature, slowly change solution B and drop it into solution A, and it can be seen that a precipitate is gradually formed. After the dropwise addition, the solution was stirred at 90 °C for 5 h to fully compound the active components. During the stirring process, 2.023 g of Tween and 4.047 g of diatomaceous earth were added to the solution respectively. After the stirri...

Embodiment 3

[0033]According to the metal molar ratio of Ni:Mo:W=2:1:1, 9.520 g of nickel chloride hexahydrate, 5.071 g of ammonium heptamolybdate, and 3.531 g of ammonium metatungstate were weighed. Pour the Mo and W compounds into a three-necked flask with a capacity of 500 ml, and completely dissolve them with 300 ml of deionized water at 50 °C to obtain solution A. Use ammonia water as the precipitant to adjust the pH of solution A to 9, and heat the temperature of solution A to 90°C in a water bath. Pour nickel chloride hexahydrate into a beaker and dissolve in 20 ml deionized water to obtain solution B. At the same temperature, slowly change solution B and drop it into solution A, and it can be seen that a precipitate is gradually formed. After the dropwise addition, the solution was stirred at 90 °C for 5 h to fully compound the active components. During the stirring process, 1.208 g of Tween and 2.416 g of diatomaceous earth were added to the solution respectively. After the stir...

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Abstract

The invention relates to a preparation method for a modified ternary metal bulk phase catalyst added with accessory ingredients. Two different accessory ingredients are introduced into a process that a non-supported catalyst is prepared by a coprecipitation method, and active ingredients and the accessory ingredients are combined, i.e., tween and kieselguhr are added into a mixed solution of nickel molybdate and ammonium metatungstate to respectively serve as a dispersant surfactant and a dispersant. According to the preparation method for the modified non-supported catalyst provided by the invention, the dispersibility of active metal ingredients and the hydrogenation property of the catalyst can be effectively improved, the mechanical strength of the non-supported catalyst is obviously improved, and meanwhile, the strict requirement of the modified catalyst for the deep desulfurization of diesel by the national standard after hydrogenation reaction is carried out can be guaranteed.

Description

technical field [0001] The invention relates to the field of catalyst preparation, in particular to a method for preparing a ternary metal bulk phase catalyst modified by adding additives. Background technique [0002] In recent years, with the decline of crude oil reserves, the newly exploited crude oil has a trend of high sulfur, heavy quality and low quality, which has led to the continuous increase of sulfur content in gasoline and diesel products processed and produced by petrochemical enterprises, and the sulfur content of high-sulfur fuel oil produced after combustion Oxide is one of the main causes of acid rain, acid fog, and ozone layer destruction, which has brought serious harm to the environment. At the same time, due to the continuous improvement of environmental protection performance requirements of oil products due to new environmental protection regulations, the deep desulfurization of oil products has become a key problem that needs to be solved urgently in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/888B01J35/10C10G45/08
CPCC10G45/08B01J23/002B01J23/8885C10G2300/202C10G2300/70B01J2523/00B01J35/613B01J35/615B01J35/633B01J35/647B01J2523/68B01J2523/69B01J2523/847
Inventor 施岩王晨余济伟杨燕王荧光裴巧慧王晓蔷杨爽于隽晨
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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