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C5 petroleum resin hydrogenation method

A carbon five petroleum resin, hydrogenation reaction technology, applied in the petroleum industry, chemical instruments and methods, and hydrocarbon oil treatment, etc., can solve the problem of poor impurity resistance of hydrogenation catalysts, harsh hydrogenation process conditions, and softening point of hydrogenation resins Low-level problems, to achieve good diffusion effect in the catalyst, reduce the hydrothermal treatment process, and achieve the effect of large specific surface area

Inactive Publication Date: 2017-07-04
QINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main problems existing in the hydrogenation process of the existing C5 petroleum resin are harsh hydrogenation process conditions, low softening point of the hydrogenation resin, poor impurity resistance and poor activity stability of the hydrogenation catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Dissolve 1.2kg of zinc nitrate in 6L of water to make a solution containing zinc, and dissolve 0.24kg of sodium metaaluminate and 0.30kg of sodium carbonate in 4L of water to make a solution containing aluminum. Divide the zinc-containing solution into 3 equal parts, each 2L. Take 2L of zinc-containing solution, keep the temperature at 80°C, add aluminum-containing mixed solution dropwise to it until the pH value reaches 9.0; stop dropping the aluminum-containing mixed solution, then add 2L of zinc-containing solution dropwise to the mixing system, and continue to drop aluminum-containing solution Mix the solution until the pH value reaches 9.0; titrate the aluminum-containing mixed solution and the zinc-containing solution alternately until all the zinc-containing solutions are added, and add the aluminum-containing mixed solution dropwise until the pH reaches 9.0. The total titration time is 3 hours. The obtained mixture was aged at 80°C for 4h, cooled and washed unti...

Embodiment 2

[0047] The preparation method and steps of the composite carrier containing zinc oxide-alumina are the same as in Example 1, and the zinc oxide containing zinc-aluminum spinel is prepared, and the pH value is adjusted to 8.7. In terms of oxides, the content of zinc oxide is 70%; the specific surface area is 191m 2 / g.

[0048] The composite carrier includes 32wt% of zinc oxide containing zinc-aluminum spinel, 67wt% of alumina, and the contents of phosphorus, potassium and magnesium in the auxiliary components are P 2 o 5 0.6wt%, K 2 O 1.0 wt%, MgO 1.0 wt%. Composite carrier specific surface area 279m 2 / g.

[0049]The difference is that after the composite carrier is obtained, the composite carrier containing zinc oxide-alumina is modified by using potassium and magnesium. , magnesium nitrate, completely dissolved in 30ml of distilled water, and then diluted with deionized water to prepare a solution and spray the composite carrier of zinc oxide-alumina, so that the con...

Embodiment 3

[0054] The preparation method and steps of the composite carrier containing zinc oxide-alumina are the same as in Example 1. Zinc oxide containing zinc aluminum spinel was prepared, and the pH value was adjusted to 9.3. Zinc oxide containing zinc aluminum spinel, calculated as oxide, the content of zinc oxide is 63%; the specific surface area is 214m 2 / g.

[0055] The composite carrier includes 18.3wt% of zinc oxide containing zinc-aluminum spinel, 79wt% of alumina, and the contents of phosphorus, potassium and magnesium in the auxiliary components are P 2 o 5 0.9wt%, K 2 O 2.0wt%, MgO 1.6wt%. Composite carrier specific surface area 242m 2 / g.

[0056] Get palladium chloride, nickel phosphide and lanthanum nitrate and join in 30ml of distilled water, add ammonia water to adjust the pH value at 3.0, then dilute with deionized water, make a solution and impregnate 100g of spherical composite carriers containing zinc oxide-alumina, specifically The steps are the same as ...

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Abstract

The invention discloses a C5 petroleum resin hydrogenation method. According to the invention, a fixed bed reactor is employed, a catalyst is the supported catalyst taking palladium and nickel phosphide as active site, and the hydrogenation process condition is characterized in that the reaction temperature is 180-270 DEG C, the reaction pressure is 6.0-15.0 MPa, and the volume velocity is 0.2-7.0<-h>. The hydrogenation process condition is relatively mild, the performance of the hydrogenation petroleum resin product is good, and the active stability of the catalyst is good.

Description

technical field [0001] The present invention relates to a hydrogenation method of C5 petroleum resin, more specifically, it uses a catalyst for hydrogenation of C5 petroleum resin with a zinc oxide-alumina composite material as a carrier, and is used for the hydrogenation reaction of C5 petroleum resin . 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 even reddish brown, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/185C10G45/10
CPCB01J27/1856C10G45/10C10G2300/202
Inventor 晁会霞罗祥生王伟建
Owner QINZHOU UNIV
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