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Catalyst for C9 petroleum resin hydrogenation reaction and preparation method thereof

A technology of hydrogenation reaction and petroleum resin, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc. Reduce catalyst activity and other problems, achieve the effect of improving sintering resistance, high catalytic activity, and large pore size

Active Publication Date: 2016-06-15
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the addition of the acidic nickel salt solution to the alkaline precipitant solution during the precipitation process of the catalyst, the environment of the precipitation process in the reactor is not uniform, resulting in the uneven size of the precipitated grains, which affects the activity of nickel. The level of performance reduces the activity of the catalyst, and the alumina carrier is added after the precipitation. This process belongs to the mixing of two solid substances, which is not conducive to the dispersion of nickel, reduces the utilization rate of active metals, and the catalyst activity is low.

Method used

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  • Catalyst for C9 petroleum resin hydrogenation reaction and preparation method thereof
  • Catalyst for C9 petroleum resin hydrogenation reaction and preparation method thereof
  • Catalyst for C9 petroleum resin hydrogenation reaction and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of catalyst support

[0026] Weigh 500g of pseudo-boehmite and stir vigorously with 2L of deionized water, then add 0.5mol / L of ZrOCl in 1L volume 2 ·8H 2 O aqueous solution is dripped in the above-mentioned solution with the speed of 5ml / min, then adds 20g pore-enlarging agent sodium stearate in the solution, after the solution mixes and becomes homogeneous system, slowly adds ammoniacal liquor, until the pH value reaches 7-8, The mixture was aged at room temperature for 4 hours and then sonicated for 20 minutes. The resulting solid was washed with deionized water until AgNO 3 The solution detects that there is no Cl in the filtrate -1 ions, and then washed three times with ethanol, then dried the solid at 120°C for 12h, and calcined at 550°C for 4h in an air atmosphere to obtain a composite zirconia-alumina carrier.

[0027] Carriers 2, 3, 4, and 5 were prepared according to the above-mentioned preparation methods with different raw powder ratios. The ...

Embodiment 2

[0031] Loading of active ingredients

[0032] Take by weighing 100g (100ml) of 1-5 carrier among the embodiment 1 respectively, add the Ni(NO of 50ml (0.16gNi / ml) 3 ) 2 Nickel nitrate aqueous solution and 50ml (0.006gPt / ml) tetraammine platinum nitrate (Pt(NH 3 ) 4 (NO 3 ) 2 ) solutions were mixed evenly, put into a vacuum drying oven at room temperature for vacuum impregnation for 12 hours, dried at 120°C, and roasted at 500°C for 4 hours to obtain the corresponding catalysts A-1, A-2, A-3, A-4, and A-5 .

Embodiment 3

[0034] Catalyst activity evaluation

[0035] The mixed C9 petroleum resin is dissolved in a cyclohexane solvent to form a raw material solution with a concentration of 10% (wt), wherein the sulfur content is 300ppm, and the chlorine content is 4375ppm.

[0036] The physical properties of raw material mixed C9 petroleum resin are as follows:

[0037] Table 2 Raw resin physical properties

[0038]

[0039] The catalyst prepared in Example 2 was loaded into a fixed-bed reaction tube, and reduced at 400° C. for 3 hours in a hydrogen atmosphere under normal pressure to activate the catalyst and carry out hydrogenation reaction. Reaction conditions: pressure 8.0Mpa, bed temperature 200°C, liquid space velocity 1.0h -1 , the hydrogen-to-liquid ratio is 400:1, the reaction mixture is washed with alkali and washed with water, and the hydrogenated mixed product is removed by the falling film evaporator to remove the solvent and its byproducts, and the falling film evaporator remove...

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PUM

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Abstract

The invention discloses a catalyst for a C9 petroleum resin hydrogenation reaction and a preparation method thereof and aims to provide a catalyst which not only has excellent hydrogenation catalytic activity but also has impurity resistant stability, can maintain a stable activity even under a high sulfur and chlorine condition, is prolonged in service life and develops the adaptability on the raw material resin. The catalyst can be used for preparing hydrogenated C9 petroleum resin being high in bromine number, light in color and high in softening point. The catalyst includes, by weight, 100 parts of a composite zirconium oxide / alumina carrier, 8-20 parts of Ni and 0.3-2.0 parts of Pt. The invention belongs to the technical field of catalyst.

Description

technical field [0001] The invention relates to a catalyst for hydrogenation reaction, specifically, a catalyst for hydrogenation reaction of C9 petroleum resin, and the invention also relates to a preparation method of the catalyst; it belongs to the technical field of catalysts. Background technique [0002] C9 petroleum resins are widely used in adhesive tapes, hot melt adhesives, road materials, inks and rubbers. The C9 petroleum resin without hydrogenation reduction has a single variety, and the product quality is not high, especially the internal quality indicators such as oil solubility, compatibility and oxidation stability are unstable. Catalytic hydrogenation reduction treatment of C9 petroleum resin can better solve the above problems, improve the product performance, broaden the application range of the product and increase the added value of the product. At present, the hydrogenation reduction of petroleum resin is mainly based on C5, and foreign research on ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89C08F240/00C08F8/04
CPCB01J23/892C08F8/04C08F240/00
Inventor 孙大雷蔡晓兰方岩雄郑育英谭伟阚一群
Owner GUANGDONG UNIV OF TECH
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