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A kind of C5 petroleum resin hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst, petroleum resin technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of high energy consumption, hydrogenation reaction temperature and pressure High-level problems, to achieve the effect of high low temperature hydrogenation activity and good resistance to impurities

Active Publication Date: 2015-08-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But also in this patent, the hydrogenation reaction temperature and pressure are high, and the energy consumption is large
[0006] my country vs. C 5 The research on petroleum resin hydrogenation catalyst started relatively late, and currently domestic C 5 Petroleum resin hydrogenation uses imported palladium catalysts; therefore, there is an urgent need for C 5 Innovative Research on Petroleum Resin Hydrogenation Catalysts

Method used

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  • A kind of C5 petroleum resin hydrogenation catalyst and preparation method thereof
  • A kind of C5 petroleum resin hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of carrier: 100g specific surface is 180m 2 / g and clover-type alumina with a pore volume of 0.74ml / g is impregnated with 100ml of titanium sulfate in a 0.8g / ml dilute sulfuric acid solution (wherein the weight concentration of the dilute sulfuric acid aqueous solution is about 10%) for 4 hours at a temperature of 120°C After drying for 10 hours and calcining at 700° C. for 6 hours, 126.7 g of alumina-titania composite carrier 1 was obtained, wherein the weight ratio of alumina to titania was 4:1.

[0026] The preparation of catalyst: the composite carrier 1 that 100g pore volume is 0.72ml / g is immersed in 85ml containing palladium chloride 0.51g / ml and in the mixed aqueous solution containing ammonium molybdate 0.006g / ml, after immersion 4 hours, drain moisture, It was reduced with 120ml of 40% hydrazine hydrate for 2 hours, washed with deionized water until there were no chloride ions, then dried at 110°C for 5 hours, and calcined at 700°C for 6 hours to o...

Embodiment 2

[0030] Preparation of the carrier: the specific surface area of ​​180g is 178m 2 / g and clover-type alumina with a pore volume of 0.76ml / g was impregnated with 142ml of cyclohexane solution containing tetraethyl titanate 1.25g / ml for 4 hours, dried at 110°C for 6 hours, and then dried at 700°C Calcined at high temperature for 5 hours; 240 g of alumina-titania composite carrier was obtained, wherein the weight ratio of alumina and titania was 3:1.

[0031] The preparation of catalyst: the composite carrier 2 that 120g pore volume is 0.72ml / g is immersed in 92ml containing palladium chloride 0.64g / ml and in the mixed aqueous solution containing ammonium molybdate 0.007g / ml, after 5 hours of immersion, drain moisture, It was reduced with 120ml of 40% hydrazine hydrate for 2 hours, washed with deionized water until there was no chloride ion, then dried at 110°C for 4 hours, and calcined at 700°C for 6 hours to obtain the catalyst. Wherein the content of palladium is 0.28% of the ...

Embodiment 3

[0033] Preparation of carrier: 175g specific surface is 180m 2 / g and a clover-type alumina with a pore volume of 0.74ml / g was impregnated with 135ml of tetraethyl titanate in a 0.62g / ml cyclohexane solution for 4 hours, dried at a temperature of 120°C for 9 hours, and then dried at a temperature of 500°C Calcined at the bottom for 6 hours to obtain 205 g of alumina-titania composite carrier, wherein the weight ratio of alumina to titania is 6:1.

[0034] Catalyst preparation: immerse 120g of composite carrier 1 with a pore volume of 0.72ml / g into 96ml of a mixed aqueous solution containing palladium chloride 0.64g / ml and ammonium metatungstate 0.005g / ml, and after immersion for 6 hours, drain the water , reduced with 120ml of 40% hydrazine hydrate for 2 hours, washed with deionized water until no chloride ions were present, dried at 120°C for 6 hours, and calcined at 600°C for 7 hours to obtain a catalyst. Wherein the content of palladium is 0.3% of the total weight of the c...

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Abstract

The invention provides a hydrogenation catalyst for a C5 petroleum resin. The catalyst comprises an alumina-titanium oxide compounded carrier and metal palladium and metal molybdenum or metal tungsten which are loaded on the compounded carrier, wherein the weight ratio of alumina to titanium oxide in the compounded carrier is 3 : 1 -6 : 1; the content of metal palladium is 0.2-0.4% based on the weight of the catalyst; and the weight ratio of metal palladium to metal molybdenum or metal tungsten is 1 : 0.8-2. The catalyst has low temperature hydrogenation activity and good impurity resistance and good stability in the hydrogenation process of the C5 petroleum resin. The invention also provides a preparation method of the hydrogenation catalyst for the C5 petroleum resin.

Description

technical field [0001] The present invention relates to a C 5 A petroleum resin hydrogenation catalyst and a preparation method thereof, in particular to a palladium-based hydrogenation catalyst and a preparation method thereof. Background technique [0002] With the continuous development of my country's petrochemical industry, the production capacity of ethylene is also increasing year by year. C 5 Petroleum resin is a by-product of ethylene plant C 5 The distillate is the main raw material, and it is a solid or viscous polymer with a relatively low molecular weight that is polymerized in the presence of a catalyst, and its average relative molecular weight is generally between 1000-3000. The resin is cheap and has excellent properties such as acid resistance, alkali resistance and aging resistance, so it is widely used in adhesive tapes, hot melt adhesives, road coatings, inks and rubbers. Existing C 5 Petroleum resin is generally reddish-brown, with a softening poin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/652C08F240/00C08F8/04
Inventor 季静柴忠义纪玉国任玉梅杜周
Owner CHINA PETROLEUM & CHEM CORP
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