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A hydrogenation catalyst for preparing hydrogenated petroleum resin and its preparation method

A technology for hydrogenation of petroleum resins and hydrogenation catalysts, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of resin hydrogenation catalysts that have not been industrialized Issues such as reports and research started late, to achieve the effects of increasing lifespan, improving dispersion effect, and slowing down poisoning

Active Publication Date: 2016-09-07
HENGHE MATERIALS & SCI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] my country's research on petroleum resin hydrogenation catalysts started relatively late. At present, domestic petroleum resin hydrogenation units all use imported palladium-based catalysts, and there are no reports on the industrialization of domestic resin hydrogenation catalysts.

Method used

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  • A hydrogenation catalyst for preparing hydrogenated petroleum resin and its preparation method
  • A hydrogenation catalyst for preparing hydrogenated petroleum resin and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0024] By weight percentage, the main catalyst Pd, the content is 0.5wt%; the co-catalyst Ag, the content is 0.3wt%; 2 o 3 Is the balance; Catalyst carrier γ-Al 2 o 3 , its specific surface area is 110m 2 / g, pore volume 0.45ml / g, bulk density 0.65g / cm 3 .

[0025] Preparation method: prepare palladium nitrate, silver nitrate, and metal niobium pentachloride of Group VB and dissolve them in hydrochloric acid to obtain a mixed solution;

[0026] γ-Al 2 o 3 Put it in a fluidized bed reactor with a temperature of 110°C, and then spray the above mixed solution evenly on the carrier to obtain a composite carrier, dry it, roast it at 250°C for 3 hours, and reduce it at 250°C for 3 hours under the condition of hydrogen, namely hydrogenation catalyst.

[0027] The parameters of Examples 2-6 are shown in Table 1, and the preparation method is the same as in Example 1.

[0028] Catalyst performance evaluation: Dissolve the petroleum resin to be hydrogenated with the initial Gar...

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Abstract

The invention relates to a hydrogenation catalyst for preparing hydrogenation petroleum resin and a preparation method thereof; the hydrogenation catalyst is a Pd / Ag / group VB metal / gamma-Al2O3 composite catalyst. The preparation comprises the steps: preparing a palladium salt, a silver salt and a group VB metal compound, and dissolving in a solvent, to obtain a mixed solution; and placing a carrier gamma-Al2O3 in a fluidized bed reactor, uniformly spraying the mixed solution onto the carrier to obtain a composite carrier, drying, roasting, reducing, and thus obtaining the product. The catalyst has relatively strong catalytic activity in preparation of the hydrogenation petroleum resin, and has relatively good resistance to toxicity of sulfur, nitrogen, halogen and other impurities, and has a relatively long catalyst service life.

Description

technical field [0001] The invention belongs to the field of hydrogenation catalyst and its preparation, in particular to a hydrogenation catalyst for preparing hydrogenated petroleum resin and its preparation method. Background technique [0002] Petroleum resin is a solid or viscous liquid medium and low molecular weight polymer obtained by thermal polymerization or catalytic polymerization with the by-product C5 / C9 fraction of the ethylene plant as the main raw material. According to the monomer and molecular structure of the resin, it can be roughly divided into aromatic petroleum resin, aliphatic petroleum resin and alicyclic petroleum resin. Because petroleum resin molecules contain a large number of unsaturated bonds and unsaturated ring structures, they will all have a certain color. The Gardner color number of the resin is usually 3 to 18#. At the same time, due to the existence of these unsaturated groups, petroleum resins are deficient in odor, weather resistance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/68C08F240/00C08F8/04
Inventor 王斌孙向东
Owner HENGHE MATERIALS & SCI TECH CO LTD
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