Mineral spirit platreating catalyzer and preparation method thereof

A hydrofining and catalyst technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of incomplete reduction of active metals, affecting catalyst performance, and production processes Complicated problems, to achieve the effect of improving anti-sintering stability, ensuring anti-sintering performance, and simple process

Active Publication Date: 2008-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation process, impregnation was carried out twice, three times, and four times respectively, and a series of catalysts were prepared, and multiple drying and roasting operations were carried out at the same time, which also made the preparation process more complicated and costly.
[0008] CN200310106563.0 discloses a method for preparing a benzene hydrogenation catalyst. The method uses a co-precipitation method to prepare a mixture of nickel oxide and rare earth oxide or a mixture of nickel oxide, rare earth oxide and aluminum oxide, which is prepare

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]Take 750g of nickel nitrate and add it to 630g of deionized water, stir to dissolve, filter and replenish water to obtain 1000ml of nickel nitrate aqueous solution A, the nickel content in the solution is 18.9g / 100ml as NiO.

Embodiment 2

[0036] Take 150g of sodium carbonate and add it to 700g of deionized water, stir to dissolve, filter and rehydrate to obtain 1000ml of sodium carbonate solution, then take 450g of nickel nitrate and add it to 500g of deionized water, stir to dissolve, filter and rehydrate to obtain 1000ml of nickel nitrate aqueous solution. Take 500ml of the above-mentioned sodium carbonate solution, then slowly add the above-mentioned nickel nitrate solution into the sodium carbonate solution for neutralization, control the pH value of the end point to 7.0-7.5, and neutralize the temperature at 70°C, then dry at 110°C for 4 hours and roast at 400°C for 4 hours. to nickel oxide. The nickel oxide used in the following examples all adopts this example to make.

Embodiment 3

[0038] Take 3g of concentrated nitric acid, 3g of citric acid, and 70g of deionized water to make a solution. Get macroporous aluminum hydroxide dry powder (meaning that the pore volume is greater than 0.8ml g -1 72g of aluminum hydroxide dry powder), 38g of SB powder, 15g of nickel oxide, and 3g of scallop powder are fully mixed, then kneaded with the prepared solution to form a plastic paste, extruded, dried at 110°C for 3h, and roasted at 450°C for 3h Make a carrier.

[0039] Take 100g of the above-mentioned carrier, saturate impregnate it with solution A at 20°C for 3h, dry at 110°C for 3h, and calcinate at 450°C for 3h to prepare Catalyst E 1 . Its main physicochemical properties are listed in Table 1.

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PUM

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Abstract

The invention discloses solvent oil hydrogenation catalyst and a preparation method thereof. The preparation method of the catalyst comprises the following steps: firstly, nickel oxide and aluminium oxide (or the precursor thereof) are mixed and pinched, squeezed into strips for molding, dried and roasted to obtain a carrier, and then a metallic solution including the nickel is soaked, dried and roasted to obtain the catalyst. The amount of the nickel oxide added to the process of the mixing and pinching occupies 50 wt percent to 70wt percent of the total content of the nickel oxide, and the nickel oxide is made through roasting the nickel carbonate obtained by sol through the gel method. The preparation method of the invention has only one mixing and pinching step and one soaking step, therefore, the process is simple, the material loss is less, and the cost is reduced; and the prepared catalyst has high hydrogenation activity, good anti-sintering performance and high operation stability.

Description

technical field [0001] The invention relates to a hydrogenation refining catalyst and a preparation method thereof, in particular to a solvent oil hydrogenation catalyst and a preparation method thereof. Background technique [0002] In recent years, the development of petroleum hydrocarbon solvent oil is very rapid, its application fields are also expanding, and the product varieties are increasing. No matter in industry or in people's daily life, petroleum hydrocarbon solvent oil is playing an increasingly important role, especially in edible oil, printing ink, leather, pesticide, insecticide, rubber, cosmetics, spices, chemical polymerization, medicine And it is widely used in various aspects such as cleaning of IC electronic components. Due to different application fields, petroleum hydrocarbon solvent oils have different product specifications, and there are certain restrictions on the content of sulfides and aromatics that can cause serious environmental pollution. ...

Claims

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Application Information

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IPC IPC(8): B01J23/835B01J37/02C10G45/06
Inventor 贾立明刘全杰徐会青王伟
Owner CHINA PETROLEUM & CHEM CORP
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