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Method for preparing hydrogenated C9 petroleum resin

A technology for petroleum resin and resin, applied in the field of preparing hydrogenated C9 petroleum resin, can solve the problems of poor economic benefit and low product grade, and achieve the effects of improved catalyst life, wide range of raw materials and less reduction

Active Publication Date: 2015-09-02
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a method for preparing high-grade resin by hydrogenation, which solves the problems of low product grade and poor economic benefit in the process of resin conversion

Method used

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  • Method for preparing hydrogenated C9 petroleum resin
  • Method for preparing hydrogenated C9 petroleum resin
  • Method for preparing hydrogenated C9 petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Using zinc nitrate and nickel nitrate as precursors, NiO / ZnO with different Ni loadings was prepared by co-precipitation method, and NiO / ZnO was reduced at 350°C for 2 hours to prepare Ni / ZnO catalysts. See Table 1 below for the properties of raw materials and the effects of hydrogenation adsorption desulfurization with different Ni loadings. The reaction conditions are feed temperature 260°C, hydrogen partial pressure 1MPa, volume space velocity 6h -1 , The volume ratio of hydrogen to oil is 200:1, and the resin concentration is 20%. See the following table 1 for resin raw materials and resin properties after hydrogenation adsorption desulfurization.

[0024]

[0025] ① Chromaticity measurement is to compare the color of the resin with 50wt% toluene solution and the standard Fe-Co colorimetric solution.

[0026] It can be seen from Table 1 that when Ni / ZnO is used as the hydrogenation adsorption desulfurization catalyst, the desulfurization effect is obv...

Embodiment 2

[0027] Example 2: Using Ni / ZnO with 20% Ni loading as the hydrogenation adsorption desulfurization catalyst, the influence of reaction conditions on the desulfurization effect was investigated. See Table 2 below for resin properties after desulfurization.

[0028]

Embodiment 3

[0029] Example 3: Using Ni / ZnO with 20% Ni loading as the hydrogenation adsorption desulfurization catalyst, the reaction conditions are feed temperature 260°C, hydrogen partial pressure 1MPa, volume space velocity 6h -1 , The volume ratio of hydrogen to oil is 200:1, and the resin concentration is 20%. See Table 3 below for the product properties obtained after 100 hours of operation.

[0030]

[0031] It can be seen from Table 3 that the 100-hour experimental results show that the sulfur and bromine values ​​on the Ni / ZnO reactive adsorption desulfurization catalyst are basically unchanged compared with the initial test, indicating that this technology has good stability. After running for a long time, the sulfur adsorption capacity of the catalyst reaches 20% of the weight of the catalyst.

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Abstract

The invention discloses a method for preparing hydrogenated C9 petroleum resin, and belongs to the technical field of resin hydrogenation. A Ni / ZnO catalyst serves as a hydrogenation adsorption desulfurization catalyst, a supported metal catalyst serves as a hydrogenation decoloration catalyst, the resin is hydrogenated in a two-section fixed bed continuous hydrogenation mode, and due to the application of the Ni / ZnO hydrogenation adsorption desulfurization catalyst, the service life of the supported metal catalyst is guaranteed. The hue of the prepared hydrogenated resin is improved to be water white, and good heat stability is achieved. The method has the advantages that the process is simple, the activity of the catalysts is high, the chromaticity of the resin is improved, the heat stability of the resin is improved, the softening point is slightly reduced, and good economic benefits and industrial application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of petroleum resin hydrogenation, and relates to a method for preparing hydrogenated C9 petroleum resin. Background technique [0002] Due to the yellowish or brown appearance of traditional resins, its application is largely limited. After hydrogenation modification, its degree of unsaturation is greatly reduced, the resin becomes colorless and has no special smell, and its adhesiveness and stability are improved, which further broadens its application field. In recent years, more emphasis has been placed on the production of weather-resistant resins with high softening points, low-viscosity resins, and copolymer resins, especially hydrogenated resins with light color. Hydrogenation modification is an important method of petroleum resin modification. At present, the representatives of hydrogenation modification of C5 / C9 petroleum resin in foreign countries include American Exxon, Eastman, Japan Arakawa an...

Claims

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Application Information

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IPC IPC(8): C08F240/00C08F8/04
Inventor 梁长海李闯张淼靳少华汪镭
Owner DALIAN UNIV OF TECH
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