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C5 petroleum resin hydrogenation catalyst and preparation method thereof

A technology of hydrogenation catalyst and petroleum resin, which is applied in the field of hydrogenation of oil products, can solve the problems of difficult reduction of tungsten oxide and reduction of catalyst activity, and achieve the effects of easy peptization, improved carrier strength, and avoiding damage to the pore structure of alumina

Active Publication Date: 2021-06-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nickel oxide is easier to reduce than tungsten oxide, and it is easy to cause metal nickel to be wrapped on the surface of tungsten oxide, which makes tungsten oxide more difficult to be reduced, and metal tungsten cannot fully exert its hydrogenation activity, resulting in a decrease in catalyst activity.

Method used

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  • C5 petroleum resin hydrogenation catalyst and preparation method thereof
  • C5 petroleum resin hydrogenation catalyst and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Aluminum sulfate was dissolved in deionized water, formulated into a solution of 0.5 g / ml of aluminum oxide, and was placed in a 1 L of the aluminum sulfate solution, and then dripped with sodium hydroxide solution, pH is constant to 8.2. After the temperature is 60 ° C, the reaction is completed after 60 min, washed three times with deionized water, then add a quantified deionized water to obtain a solid liquid mass ratio of 10% (in alumina gauge)..

[0030] 20g Y molecular sieve (SIO 2 / Al 2 O 3 The molar ratio is 40.0, the cell constant is 15 å, the relative crystallinity is 90%), and 250 g of anhydrous ethanol, then add 250 g of anhydrous ethanol, stir well, then add 100 g of tetraethoxysilane, After continuous stirring is mixed, then a small amount of tetramethylammonium hydroxide is added to adjust the slurry pH to 9.0. In the closed autoclave, after 190 ° C aging for 20 h, the filtration was taken until the filter cake was 39%, and 11.2 g of ethylenediamine and 12...

Embodiment 2

[0032] Solly molybdate is in deionized water, formulated into MOO 3 A solution of a concentration of 0.12 g / ml, impregnated with a solution of 150 g of a molecular sieve modified alumina support, dried at 200 ° C for 3 h, and then reduced treatment, the reduction conditions were: reduction pressure was 1.5 MPa, and the reduction temperature was 500 ° C , The reduction time is 5 hours, the hydrogen flow is 200ml / min, then in N 2 The atmosphere was reduced to room temperature to obtain a catalyst precursor.

[0033] The cobalt nitrate is soluble in deionized water, and the COO content is 0.5 g / ml impregnation liquid, and 60 mL is impregnated into the catalyst precursor, and then in N 2 The atmosphere was dried at 110 ° C for 3 h, and 2 h was calcined at 300 ° C to obtain catalyst C-1.

Embodiment 3

[0035] Solly molybdate is in deionized water, formulated into MOO 3 A solution of a concentration of 0.11 g / ml, impregnated with 150 g of a molecular sieve modified alumina carrier, dried at 200 ° C for 3 h, then recovered treatment, the reduction conditions were: reduction pressure was 1.5 MPa, and the reduction temperature was 500 ° C , The reduction time is 5 hours, the hydrogen flow is 200ml / min, then in N 2 The atmosphere was reduced to room temperature to obtain a catalyst precursor.

[0036] Nitrate is dissolved in deionized water, and it is equipped with a NiO content of 0.5 g / ml impregnation liquid, and 60 mL is impregnated into the catalyst precursor, and then in N 2 The atmosphere was dried at 110 ° C for 3 h, and 2 h was calcined at 300 ° C to obtain catalyst C-2.

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Abstract

The invention discloses a C5 petroleum resin hydrogenation catalyst and a preparation method thereof. The catalyst comprises 2 wt%-12 wt% of reduction-state Mo and / or W, 10 wt%-30 wt% of oxidation-state Co and / or Ni and 58 wt%-88 wt% of a carrier, wherein the carrier is one or more selected from aluminum oxide, zirconium oxide, titanium oxide, magnesium oxide and molecular sieve-modified aluminum oxide. The preparation method comprises the following steps: (1) impregnating the carrier with Mo and / or W active metal impregnation liquid, then conducting drying, and carrying out reduction treatment on a dried material to obtain a catalyst precursor; and (2) impregnating the catalyst precursor obtained in the step (1) with Co and / or Ni active metal impregnation liquid, and then carrying out drying and roasting in an inert atmosphere to obtain the C5 petroleum resin hydrogenation catalyst. The catalyst disclosed by the invention has relatively high hydrogenation activity and capability of resisting poisoning of impurities such as sulfur and chlorine, presents very high stability, and is suitable for C5 petroleum resin hydrogenation reaction.

Description

Technical field [0001] The present invention relates to the field of oil hydrogenation techniques, and more particularly to a petroleum resin hydrotrene hydrocarbon catalyst and a preparation method thereof. Background technique [0002] In order to improve C 5 The use and value of petroleum resins, major companies use Co 5 The petroleum resin is hydrogenated, and the double bonds are saturated, and the residual halogen element is removed, and the chromaticity and light stability of the resin are improved. At present, the fixed bed process and hydrogenation catalyst are mainly achieved, in which the hydrogenation catalyst is very significant. [0003] CN102935367 B discloses a C5 petroleum resin hydrogenation catalyst and a preparation method thereof. The catalyst comprises an alumina-titanium oxide composite carrier and a metal palladium and metal molybdenum or metal tungsten loaded on the composite carrier, which is prepared by co-impregnation with molybdenum or tungsten salt, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/16B01J23/888C10G45/12C10G45/08
CPCB01J29/166B01J23/002B01J23/8885C10G45/12C10G45/08B01J2229/186B01J2523/00B01J2523/31B01J2523/48B01J2523/68B01J2523/69B01J2523/847
Inventor 李娟刘丽姚运海徐学军
Owner CHINA PETROLEUM & CHEM CORP
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