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Nickel catalyst for hydrogenation of C5 petroleum resin and preparation method of nickel catalyst

A technology of hydrogenation catalyst and petroleum resin, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalyst, etc., and can solve the problem of large amount of Ni and W, poor stability, Expensive and other issues, to achieve the effects of adsorption and desorption, good dispersion, and improve utilization

Active Publication Date: 2017-01-04
抚顺华兴石油化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, supported noble metal catalysts such as Pd and Pt are mainly used for hydrogenation of C5 petroleum resins, which are not only expensive, but also easily poisoned and have poor stability. There are also some research reports using non-precious metal catalysts such as Ni and W, but the amount of Ni and W It is relatively large and requires the addition of additives or complexing agents. Therefore, the development of a non-precious metal catalyst with low dosage, high activity, good stability and industrialization is very important for the development of my country's C5 petroleum resin hydrogenation industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The catalyst of this embodiment comprises a diatomite carrier treated with a pore-enlarging agent and catalyst Ni loaded on the carrier, the mass percentage of Ni is 8% based on the weight of the carrier, and the pore-enlarging agent is sodium citrate. The mass percent content of the pore-enlarging agent is 8% based on the weight of the carrier.

[0025] The preparation method of the catalyst of the present embodiment comprises the following steps: (1) dissolving sodium citrate in deionized water, unsaturated impregnation with carrier diatomaceous earth in an autoclave for 6 hours, the impregnation temperature is 60°C, and the impregnation pressure is 2.5MPa After impregnation, the sample was aged at room temperature for 2 hours, dried in an oven at 100°C for 7 hours, and then roasted in a muffle furnace at 650°C for 3.5 hours to obtain a spare carrier. The heating rate of the muffle furnace was 2°C / min; (2) formic acid Nickel, nickel acetate, and nickel chloride mixed ...

Embodiment 2

[0029] The catalyst of this embodiment comprises a diatomite carrier treated with a pore-enlarging agent and catalyst Ni loaded on the carrier, the mass percentage of Ni is 18% based on the weight of the carrier, and the pore-enlarging agent has a molecular weight of 10000 For polyvinyl acetate, the mass percentage of the pore expander is 3% based on the weight of the carrier.

[0030] The preparation method of the catalyst of this embodiment comprises the following steps: (1) dissolving polyvinyl acetate in ethanol, unsaturated impregnation with carrier diatomaceous earth in an autoclave for 3 hours, the impregnation temperature is 120° C., and the impregnation pressure is 0.3 MPa, After impregnation, the sample was aged at room temperature for 2 hours, dried in an oven at 70°C for 12 hours, and then calcined in a muffle furnace at 400°C for 6.5 hours to obtain a spare carrier. The heating rate of the muffle furnace was 2°C / min; (2) Nitric acid Nickel, nickel acetate, and nic...

Embodiment 3

[0034] The catalyst of this embodiment comprises a diatomite carrier treated with a pore-enlarging agent and catalyst Ni loaded on the carrier, the mass percentage of Ni is 12% based on the weight of the carrier, and the pore-enlarging agent is sodium citrate and For PVPK12, the mass percentage of the pore expander is 4% based on the weight of the carrier.

[0035] The preparation method of the catalyst of the present embodiment comprises the following steps: (1) dissolving sodium citrate and PVPK12 in deionized water, unsaturated impregnation with carrier diatomaceous earth in an autoclave for 5 hours, the impregnation temperature is 63° C., and the impregnation pressure is 0.8 MPa, after impregnation, the sample was aged at room temperature for 2 hours, dried in an oven at 70°C for 10 hours, and then roasted in a muffle furnace at 500°C for 4 hours to obtain a spare carrier. The heating rate of the muffle furnace was 2°C / min; (2) Nitric acid Nickel, nickel formate, and nicke...

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Abstract

The invention belongs to the field of preparation of a metal catalyst, and particularly relates to a nickel catalyst for hydrogenation of C5 petroleum resin and a preparation method of the nickel catalyst. The catalyst comprises a diatomaceous earth carrier treated with a reaming agent, and a catalyst Ni loaded on the carrier, wherein the reaming agent is selected from one or several kinds of sodium citrate, polyvinylpyrrolidone and polyvinyl acetate. In addition, the invention further discloses the preparation method of the catalyst. When the catalyst is used for the hydrogenation of the C5 petroleum resin, in-diffusion can be reduced, the dosage is small, the activity is high, the life is long, and water-white high-quality C5 hydrogenation petroleum resin can be prepared; and besides, the preparation technology is simple, and the catalyst is suitable for industrialized production.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of metal catalyst preparation, in particular to a nickel catalyst for C5 petroleum resin hydrogenation and a preparation method thereof. [0003] 【Background technique】 [0004] C5 petroleum resin is a thermoplastic resin obtained by polymerization of C5 fraction as raw material. It is an oligomer with a molecular weight of about 300-3000 and exists in a glass state at room temperature. Synthetic C5 petroleum resins contain unsaturated bonds, which lead to problems such as odor, darkening of hue, and poor light and heat stability during use, which greatly limit the application range and economic benefits of C5 petroleum resins. Hydrogenation is a common method to prepare light-colored high-quality petroleum resin. The C5 hydrogenated petroleum resin has the advantages of low color number and good light and heat stability. It is a high-end special petroleum resin. It not only has the general It can a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755C08F8/04C08F240/00
CPCC08F8/04B01J23/755B01J37/0201B01J37/0207B01J2523/00B01J35/19B01J35/60B01J2523/847C08F240/00
Inventor 农玉金
Owner 抚顺华兴石油化工有限公司
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