Supported nickel-based catalyst, preparation method and applications thereof

A nickel-based catalyst, supported technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of high cost of precious metal catalysts and achieve good application prospects , The effect of accelerating the hydrogenation reaction speed and high anti-sulfur poisoning ability

Active Publication Date: 2019-01-25
SHANGHAI XUNKAI NEW MATERIAL TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0010] The first aspect of the purpose of the present invention provides a supported nickel-based catalyst, which uses nickel, zinc and magnesium as active components, and is supported on a composite carrier of silicon oxide and titanium oxide to form Ni-Zn- Mg / SiO 2 -TiO 2 The supported catalyst solves the problem of high cost of noble metal catalysts in the prior art

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  • Supported nickel-based catalyst, preparation method and applications thereof

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[0049] On the other hand, the embodiment of the present invention also provides a preparation method of the supported nickel-based catalyst, comprising the following steps:

[0050] Step S1, providing a nickel-containing precursor, a zinc-containing precursor, a magnesium-containing precursor, a composite carrier, an alkaline soluble matter and deionized water, and the nickel-containing precursor, the zinc-containing precursor and the The magnesium precursor is mixed and dissolved in the deionized water to form a precursor solution, and the alkaline soluble matter is dissolved in the deionized water to form an alkaline aqueous solution;

[0051] Step S2, mixing the precursor solution, the alkaline aqueous solution and the composite carrier and performing a co-precipitation reaction to form a slurry;

[0052] Step S3, filtering the slurry to obtain a filter cake, and then sequentially washing, drying and pulverizing the filter cake to obtain a first catalyst powder;

[0053] S...

Embodiment 1

[0060] This embodiment provides a supported nickel-based catalyst, the composition of the supported nickel-based catalyst is 60Ni-1Zn-1Mg / 30SiO 2 -8TiO 2 , the supported nickel-based catalyst described in this embodiment is prepared by the following method, the method comprising: accurately weighing 113.6g of Na 2 CO 3 Place in a 5L three-necked flask, add 1.2L deionized water and heat to dissolve, accurately weigh 30.0g of silicon dioxide and 8.0g of titanium dioxide and add them to the three-necked flask for heating and stirring to obtain silicon , titanium dioxide and Na 2 CO 3 For the mixed slurry composed of the solution, when the temperature rises to 50°C, the pre-prepared aqueous solution containing active components nickel, zinc and magnesium is added dropwise to the above mixed slurry within 0.5h to carry out the precipitation reaction.

[0061] After the mother liquor was removed by filtration, it was washed with deionized water at about 60° C. until the pH of...

Embodiment 2

[0066] This embodiment provides a supported nickel-based catalyst, the composition of the supported nickel-based catalyst is 60Ni-1Zn-1Mg / 30SiO 2 -8TiO 2 , the supported nickel-based catalyst described in this embodiment is prepared by the following method, the method comprising: accurately weighing 113.6g of Na 2 CO 3 Place in a 5L three-necked flask, add 1.2L deionized water and heat to dissolve, accurately weigh 30.0g of silicon dioxide and 8.0g of titanium dioxide and add them to the three-necked flask for heating and stirring to obtain silicon , titanium dioxide and Na 2 CO 3 For the mixed slurry composed of the solution, when the temperature rises to 50°C, the pre-prepared aqueous solution containing active components nickel, zinc and magnesium is added dropwise to the above mixed slurry within 2.0 hours to carry out precipitation reaction.

[0067] After the mother liquor was removed by filtration, it was washed with deionized water at room temperature until the ...

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Abstract

The present invention discloses a supported nickel-based catalyst, and provides a supported nickel-based catalyst, which comprises active components and a composite carrier, wherein the active components comprise nickel, zinc and magnesium, the composite carrier comprises silica and titanium dioxide, the active components are supported on the composite carrier to form the supported nickel-based catalyst with the structure of Ni-Zn-Mg / SiO2-TiO2, the mass content of nickel is 30-80%, the mass content of zinc is 0.1-15%, the mass content of magnesium is 0.1-15%, the mass content of silica is 10-50%, and the mass content of the titanium dioxide is 1-30%. According to the present invention, the prepared Ni-Zn-Mg / SiO2-TiO2 supported nickel-based catalyst has obvious hydrorefining effect on whiteoil, the preparation process and the equipment are simple, the method is suitable for industrialization, and the product has good application prospect and great economic benefit.

Description

technical field [0001] The invention relates to the field of industrial catalysis, in particular to a supported nickel-based catalyst and its preparation method and application. technical background [0002] White oil is a type of petroleum product obtained by deep refining of lubricating oil fractions to remove impurities such as aromatics and sulfides in lubricating oil fractions. It is colorless, tasteless, odorless, chemically inert and has excellent light and heat stability. It is widely used in chemical daily necessities, food, medicine, textile and agriculture and other fields. According to different uses and refining depths, white oil can be divided into industrial grade, cosmetic grade, food grade and pharmaceutical grade. [0003] The traditional process uses acid treatment and white clay refining method to produce white oil, which not only has a low yield of white oil, but also has environmental pollution problems. The production of white oil by hydrogenation ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J35/02B01J35/10C10G45/06
CPCB01J23/80B01J35/023B01J35/1019B01J35/1023B01J35/1076C10G45/06C10G2400/14
Inventor 黄雍国海光孙海霞陈文祥王素素王林敏孙兵
Owner SHANGHAI XUNKAI NEW MATERIAL TECH
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