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Liquid-phase hydrofining method of poly DCPD petroleum resin based on modified nickel supported catalyst

A technology of supported catalysts and petroleum resins, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of affecting the service life of catalysts, reducing catalyst activity, increasing Energy consumption and other issues, to achieve the effect of eliminating mass transfer restrictions, increasing the ability of other impurities, and prolonging the service life

Pending Publication Date: 2020-05-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the existing technologies have certain effects, there are obvious deficiencies in practical operation, production cost and product stability, such as high cost of hydrodesulfurization, poor effect on colloid treatment; large material loss in adsorption method , solid waste is difficult to deal with, the combined process is complicated, and the cost is high
Due to the existence of some dicyclopentadiene in poly-DCPD resin, they are easy to polymerize and coke during hydrogenation reaction. The coke covers the surface of the catalyst and deposits in the pores, which reduces the activity of the catalyst and affects the service life of the catalyst.
[0006] In the traditional trickle bed hydrogenation process, in order to control the reaction temperature and avoid carbon deposition and deactivation of the catalyst, the circulating hydrogen compressor is generally designed with a large hydrogen-oil ratio process, which not only increases the fixed investment but also increases the cost of the device. energy consumption

Method used

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  • Liquid-phase hydrofining method of poly DCPD petroleum resin based on modified nickel supported catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation steps of the modified nickel-based supported catalyst in the present embodiment are as follows:

[0035] First equipped with alumina (γ-Al 2 o 3 ) sol, which is coated on the surface of 80g spherical activated carbon by 7 dipping methods, each dipping time is 10min, the dipping temperature is normal temperature, and the pressure is normal pressure. After filtering, it is first dried at 40°C for 3h, and then N 2 Calcined at 400°C for 4 hours in the atmosphere to obtain alumina (γ-Al 2 o 3 ) film-coated activated carbon support, alumina (γ-Al 2 o 3 ) and the weight ratio of activated carbon is 4:1;

[0036] Prepare a nickel nitrate aqueous solution with a concentration of 1.1mol / L and a nitrate solution of metallic iron with a concentration of 0.8mol / L, and then use an equal volume impregnation method to mix 100g of the above-prepared alumina (γ-Al 2 o 3 ) membrane-coated activated carbon carrier is immersed in a nickel nitrate aqueous solution and...

Embodiment 2

[0042] The preparation steps of the modified nickel-based supported catalyst in the present embodiment are as follows:

[0043] First equipped with alumina (γ-Al 2 o 3 ) sol, which is coated on the surface of 80g spherical activated carbon by 9 dipping methods, each dipping time is 15min, the dipping temperature is normal temperature, and the pressure is normal pressure. After filtering, it is first dried at 55°C for 5h, and then N 2 Calcined at 450°C for 5 hours in the atmosphere to obtain alumina (γ-Al 2 o 3 ) film-coated activated carbon support, alumina (γ-Al 2 o 3 ) and the weight ratio of activated carbon is 5:1;

[0044] Preparation concentration is the nickel nitrate aqueous solution of 1.2mol / L and the nitrate solution of metallic copper that the concentration is 0.8mol / L, adopts equal volume impregnation method then, the aluminum oxide (γ-Al of 100g 2 o 3 ) membrane-coated activated carbon support is immersed in a nickel nitrate aqueous solution and a metal c...

Embodiment 3

[0050] The preparation steps of the modified nickel-based supported catalyst in the present embodiment are as follows:

[0051] First equipped with alumina (γ-Al 2 o 3) sol, which is coated on the surface of 80g spherical activated carbon by 10 dipping methods, each dipping time is 13min, the dipping temperature is normal temperature, and the pressure is under normal pressure. After filtering, it is first dried at 35°C for 7h, and then in N 2 Calcined at 500°C for 6 hours in the atmosphere to obtain alumina (γ-Al 2 o 3 ) film-coated activated carbon support, alumina (γ-Al 2 o 3 ) and activated carbon in a weight ratio of 6:1.

[0052] Preparation concentration is the nickel nitrate aqueous solution of 1.1mol / L and the nitrate solution of the metallic cobalt that concentration is 0.8mol / L, adopts equal volume impregnation method then, the aluminum oxide (γ-Al 2 o 3 ) membrane-coated activated carbon support is immersed in a nickel nitrate aqueous solution and a metal co...

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Abstract

The invention discloses a liquid-phase hydrofining method of poly DCPD petroleum resin based on a modified nickel supported catalyst. In the method, a two-step mode is adopted to meet the requirementsof hydrofining of poly DCPD petroleum resin, and the method comprises the following steps: 1, a pretreatment process: removing colloids and organic sulfur in poly DCPD petroleum resin by adopting a fixed bed technology; and 2, a liquid phase hydrofining process: taking pretreated poly DCPD petroleum resin as a hydrogenation raw material, adopting a liquid phase hydrogenation technology, and carrying out the liquid phase hydrofining process on a fixed bed hydrogenation device. In the liquid phase hydrogenation process, the adopted catalyst is the modified nickel supported catalyst. According to the method, the required hydrogen is provided for the reaction in a liquid circulating material manner, no expensive hydrogen circulating compressor is needed to be arranged in the device, and a material passing through the reactor is a single liquid-phase material, so that the production cost is reduced, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of organic catalysis, and in particular relates to a liquid-phase hydrogenation refining method of polydicyclopentadiene (polyDCPD) petroleum resin based on a modified nickel-based supported catalyst. Background technique [0002] Petroleum resin is widely used in coatings, adhesives, sealants, paper additives and other fields. With the continuous development of technology in various fields, the requirements for the quality of petroleum resin are getting higher and higher. The raw materials for preparing petroleum resin mainly come from petroleum cracking The by-products of ethylene / propylene production, due to the complex composition of cracking raw materials and the influence of the petroleum resin production process, there are double bonds or aromatic ring double bonds in the prepared petroleum resin, and contain impurities such as halides and sulfides. Some processes also have Gel formation leads to deep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755C08F240/00
CPCB01J23/755C08F240/00
Inventor 常慧黄勇方玲叶军明孙骏陆鑫瞿卫国
Owner CHINA PETROLEUM & CHEM CORP
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