Petroleum resin hydrogenation catalyst and preparation method thereof

A petroleum resin and catalyst technology, applied in the field of petroleum resin hydrogenation catalysts, can solve the problems of poor activity stability, low activity, poor impurity resistance, etc., to improve hydrogenation activity, improve resin hydrogenation activity, and reduce the proportion of micropores Effect

Inactive Publication Date: 2017-08-18
QINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing catalysts for hydrogenation of petroleum resins have the problems of low activity of nickel-based hydrogenation catalysts, poor resistance to impurities, and poor activity stability

Method used

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  • Petroleum resin hydrogenation catalyst and preparation method thereof
  • Petroleum resin hydrogenation catalyst and preparation method thereof
  • Petroleum resin hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] First, 8.0 g of the water-soluble chitosan pore-enlarging agent was added to deionized water at 50° C., and then acetic acid was added dropwise until the chitosan was completely dissolved to obtain an acid solution containing the pore-enlarging agent. Weigh a certain amount of phosphoric acid and potassium nitrate respectively, completely dissolve the phosphoric acid and potassium nitrate in 70 g of distilled water to prepare an aqueous solution containing phosphorus and potassium. Weigh 350g of pseudo-boehmite powder and 20.0g of fenugreek powder into the kneader and mix evenly, then add the mixed solution of phosphoric acid and potassium nitrate, and finally add the chitosan-containing acid solution to the pseudo-boehmite The powder is evenly kneaded, and then kneaded-extruded into a clover shape. Dry at 120° C. for 8 hours, and calcined at 700° C. for 4 hours to obtain phosphorous and potassium-containing alumina carrier 1 . vector 1 P 2 o 5 0.5wt%, K 2 O 1.8 wt...

Embodiment 2

[0034] Add 8.0 g of the water-soluble chitosan pore-enlarging agent into deionized water at 50° C., and then add acetic acid dropwise until the chitosan is completely dissolved to obtain an acid solution containing the pore-enlarging agent. Weigh a certain amount of phosphoric acid and potassium nitrate respectively, completely dissolve the phosphoric acid and potassium nitrate in 70 g of distilled water to prepare an aqueous solution containing phosphorus and potassium. Weigh 350g of pseudo-boehmite powder and 20.0g of fennel powder into the kneader, mix well, then add the mixed solution of phosphoric acid and potassium nitrate, and finally add the acid solution containing chitosan to the pseudo-boehmite The stone powder is evenly kneaded, and then kneaded-extruded into a clover shape. Dry at 120° C. for 8 hours, and calcined at 700° C. for 4 hours to obtain an alumina carrier 2 containing phosphorus and potassium. carrier 2 P 2 o 5 0.8%, K 2 O 1.0%

[0035] Then use ph...

Embodiment 3

[0038] The preparation method of the carrier was carried out according to Example 1. The difference is that the water-soluble chitosan pore-enlarging agent is replaced by the non-water-soluble chitosan pore-enlarging agent, and the chitosan formic acid solution is stirred with a magnetic stirrer for 30 minutes to obtain the alumina carrier 3 with a macroporous structure. The content of auxiliary components phosphorus and potassium in the carrier accounts for the percentage of the carrier mass, respectively P 2 o 5 1.8wt%, K 2 O2.0 wt%. Its specific surface area and pore size distribution are shown in Table 1.

[0039] Add palladium chloride and nickel phosphide to 30ml of distilled water, add ammonia water to adjust the pH value to 3.0, then dilute with deionized water, make a solution and impregnate 100g of spherical alumina carrier with macroporous structure, the specific steps are the same as the implementation examples 1. The catalyst was dried at 120°C for 6h and th...

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Abstract

The invention discloses a petroleum resin hydrogenation catalyst and a preparation method thereof. In terms of oxide mass, the catalyst comprises components as follows: 75.0wt%-96.0wt% of an alumina supporter with a macroporous structure, 1.0wt%-10.0wt% of an active component palladium oxide and 3.0wt%-15.0wt% of nickel phosphide, wherein chitosan is adopted as a pore-expanding agent of the supporter. The petroleum resin hydrogenation activity is high, the activity stability is good, the loss rate of an active center of the catalyst is low, and the operating cycle is long.

Description

technical field [0001] The invention belongs to the field of petroleum resin hydrogenation catalysts, and relates to a petroleum resin hydrogenation catalyst and a preparation method, more specifically, a petroleum resin hydrogenation catalyst and a preparation method using alumina with a macroporous structure as a carrier. Background technique [0002] Thermoplastic resins produced by polymerization of C5 and C9 fractions in ethylene cracking by-products can generally be divided into: aliphatic hydrocarbon resins (C5), aliphatic hydrocarbon-aromatic resins (C5 / C9), aromatic hydrocarbon resins (C9) and dicyclopentadiene resins Diene resin (DCPD). Because petroleum resin has good water resistance, acid and alkali resistance, weather resistance and light aging resistance, it is widely used in the fields of paint, coating, adhesive and rubber. At present, domestic petroleum resin is affected by the composition of raw materials, and its products are generally light yellow or ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/44B01J27/185B01J32/00B01J37/02B01J37/08C08F240/00C08F8/04
CPCB01J21/04B01J23/44B01J27/1853B01J37/0201B01J37/0207B01J37/084C08F8/04C08F240/00
Inventor 罗祥生晁会霞邓勤
Owner QINZHOU UNIV
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