CN115814787A - Metal loss resistant carbon five petroleum resin hydrogenation catalyst - Google Patents

Metal loss resistant carbon five petroleum resin hydrogenation catalyst Download PDF

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CN115814787A
CN115814787A CN202310001921.9A CN202310001921A CN115814787A CN 115814787 A CN115814787 A CN 115814787A CN 202310001921 A CN202310001921 A CN 202310001921A CN 115814787 A CN115814787 A CN 115814787A
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beta
composite carrier
petroleum resin
hydrogenation catalyst
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翟庆阁
黄明志
黄闽岳
蔡俊鑫
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Sinochem Quanzhou Energy Technology Co Ltd
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Sinochem Quanzhou Energy Technology Co Ltd
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    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

The invention discloses a metal loss resistant carbon five petroleum resin hydrogenation catalyst, which is prepared from Pt group active metal and beta-Mg 2 V 2 O 7 /SiO 2 The composite carrier and the auxiliary agent boron. The catalyst can improve the catalytic efficiency of the hydrocarbon-modified petroleum resin and ensure that the active metal is not easy to lose.

Description

Metal loss resistant carbon five petroleum resin hydrogenation catalyst
Technical Field
The invention particularly relates to a metal loss resistant carbon five petroleum resin hydrogenation catalyst.
Background
The main chain of the carbon five petroleum resin is an aliphatic structure, and has the characteristics of low acid value, good miscibility, water resistance, ethanol resistance, chemical corrosion resistance and the like. However, the carbon-five petroleum resin has the defects of high brittleness, dark color, odor, lack of polar groups on the structure and the like due to unsaturated chemical bonds. Unsaturated carbon-carbon double bonds in the resin are subjected to hydrogenation saturation in a catalytic hydrogenation mode, so that the unsaturation degree of the resin can be reduced, and the performances of the resin such as stability, oxidation resistance and the like are improved. The hydrogenated carbon five petroleum resin is colorless, tasteless, high in light oxygen stability, and is an upgrade of common yellow resin additives used in specific fields, especially furniture binder, printing ink, high-grade paper, paint and other fields. With the requirement of human on health and environmental protection, the hydrogenated carbon five resin gradually replaces the carbon five petroleum resin to produce energy, and the hydrogenated carbon five petroleum resin can be applied to more fields.
C5 petroleum resin hydrogenation catalysts are mainly classified into Ni-based catalysts and noble metal-based catalysts, and although Ni-based catalysts have a cost advantage to facilitate industrialization, their activities are relatively low and require high reaction temperatures. In view of the above problems, the use of noble metal-based catalysts in the hydrogenation of hydrocarbon-modified petroleum resins has been increasing in recent years. The noble metal catalyst has higher hydrogenation performance and milder reaction conditions, but the noble metal has poorer dispersibility on the carrier, and chlorine element in resin often causes the loss of active metal in the hydrogenation catalyst. The patent CN 104525198B improves the catalytic activity of the catalyst by adding Ag or VB group elements, and simultaneously has better resistance to the toxicity of impurities such as sulfur, halogen, nitrogen and the like, thereby having longer service life. CN 106268725A uses gamma-alumina as carrier and adopts step-by-step method to load palladium, molybdenum, manganese and other metals, so that the catalyst has better hydrogenation activity. CN 102935367B provides a C5 petroleum resin hydrogenation catalyst, which comprises an alumina-titanium oxide composite carrier, metal palladium loaded on the composite carrier, and auxiliary agents of molybdenum and tungsten, and the catalyst has not only lower hydrogenation activity but also better impurity resistance and good stability when being used in a C5 petroleum resin hydrogenation process.
Disclosure of Invention
Aims to solve the problem that the noble metal catalyst reduces the loss of active metal while maintaining higher hydrogenation activity of the petroleum resin. The invention provides a metal loss resistant carbon five petroleum resin hydrogenation catalyst, which uses beta-Mg 2 V 2 O 7 And SiO 2 Hydrogenation for forming carbon-five petroleum resin by using noble metal loaded composite carrierThe catalyst can not only effectively hydrogenate the petroleum resin, but also utilize beta-Mg 2 V 2 O 7 More oxygen vacancies stabilize the active metal, reduce the loss of the active metal in the reaction, and utilize boron element for modification to help the dispersion of the active metal and reduce the particle size of the active metal.
In order to realize the purpose, the invention adopts the following technical scheme:
one of the purposes of the invention is to provide a metal loss resistant carbon five petroleum resin hydrogenation catalyst, which comprises the following components:
(a) A Pt group active metal;
(b)β-Mg 2 V 2 O 7 /SiO 2 a composite carrier;
(c) And (4) an auxiliary agent boron.
Further, the Pt group active metal is one or more of Pt, pd, ir, ru and Rh.
Further, the loading amount of the Pt group active metal is 0.1-5% of the mass of the composite carrier.
Further, beta-Mg in the composite carrier 2 V 2 O 7 The content of (A) is 30-60% of the total mass of the composite carrier.
Further, the content of the boron additive accounts for 0.01-2% of the mass of the composite carrier.
The invention also aims to provide a preparation method of the carbon five petroleum resin hydrogenation catalyst, which comprises the following steps:
(1)β-Mg 2 V 2 O 7 preparation of
Reacting NH 4 VO 3 Dissolved in hot water at 85 ℃ according to NH 4 VO 3 And Mg (OH) 2 1, adding Mg (OH) 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, grinding thoroughly to obtain beta-Mg 2 V 2 O 7 A powder;
(2)β-Mg 2 V 2 O 7 /SiO 2 preparation of composite Carrier
40 ml of alcohol-water soluble solution was prepared in a volume ratio of 1Heating the solution to 40-90 ℃ under the condition of stirring, and then adding beta-Mg into the catalyst 2 V 2 O 7 And SiO 2 The dosage proportion is that a certain amount of orthosilicic acid alcohol ester and a certain amount of beta-Mg are dripped into the alcohol-water solution 2 V 2 O 7 Stirring and aging at 40-90 deg.C for 8 hr, gelatinizing and aging at room temperature for 24 hr, drying the gel at 120 deg.C for 36 hr, grinding the solid, and calcining at 450 deg.C for 6 hr to obtain beta-Mg 2 V 2 O 7 /SiO 2 A composite carrier;
(3) Preparation of the catalyst:
dissolving Pt group active metal precursor and boric acid in deionized water according to a certain proportion by adopting an impregnation method, and then adding the beta-Mg prepared in the step (2) 2 V 2 O 7 /SiO 2 And (3) stirring and soaking the composite carrier for 6 hours, drying the composite carrier in a water bath at 90 ℃, grinding the product into powder, and roasting the powder for 6 hours at 450 ℃ to obtain the hydrogenation catalyst.
Further, the Pt group active metal precursor in the step 3) is chloride, nitrate, hydrochloride, chloride ammonia complex or nitrate ammonia complex of Pt group active metal, such as PdCl 2 、Pd(NH 3 ) 2 Cl 2 、Pd(NH 3 ) 2 Cl 4 、Pd(NO 3 ) 2 、H 2 PtCl 6 、Pt(NH 3 ) 4 Cl 2 、Pt(NH 3 ) 4 (NO 3 ) 2 、[Pt(NH 3 ) 4 ][PtCl 4 ]。
The invention also aims to provide an application of the hydrogenation catalyst for the carbon five petroleum resin, namely the hydrogenation catalyst is applied to the hydrofining of the carbon five petroleum resin.
The invention has the following remarkable advantages:
the beta-Mg is used in the metal loss resistant carbon five petroleum resin hydrogenation catalyst provided by the invention 2 V 2 O 7 And SiO 2 As a composite carrier to load noble metal and boron, wherein, beta-Mg 2 V 2 O 7 More oxygen vacancies can stabilize the active metal and promoteAnchoring of the active metal in the support, thereby reducing loss of the active metal in the reaction, siO 2 The surface area of the catalyst can be increased, the adsorption and diffusion effects on raw material molecules are increased, the modification of the boron element is more beneficial to the dispersion of active metal, and the particle size of the active metal is reduced, so that the obtained catalyst has high-efficiency catalytic hydrogenation activity on the carbon five petroleum resin, and the loss of the active metal can be avoided.
Detailed Description
A preparation method of a carbon five petroleum resin hydrogenation catalyst comprises the following steps:
(1)β-Mg 2 V 2 O 7 preparation of (2)
Reacting NH 4 VO 3 Dissolved in hot water at 85 ℃ according to NH 4 VO 3 And Mg (OH) 2 1, adding Mg (OH) 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 A powder;
(2)β-Mg 2 V 2 O 7 /SiO 2 preparation of composite Carrier
Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The dosage proportion is that a certain amount of orthosilicic acid alcohol ester and a certain amount of beta-Mg are dripped into the alcohol-water solution 2 V 2 O 7 Stirring and aging at 40-90 deg.C for 8 hr, gelatinizing and aging at room temperature for 24 hr, drying the gel at 120 deg.C for 36 hr, grinding the solid, and calcining at 450 deg.C for 6 hr to obtain beta-Mg 2 V 2 O 7 /SiO 2 A composite carrier;
(3) Preparation of the catalyst:
dissolving a Pt group active metal precursor and boric acid in deionized water according to a certain proportion by adopting an immersion method, and then adding the beta-Mg prepared in the step (2) 2 V 2 O 7 /SiO 2 The composite carrier is stirred, dipped for 6 hours, dried in water bath at 90 ℃, and the product is groundGrinding into powder, and roasting at 450 ℃ for 6 hours to obtain the hydrogenation catalyst.
Wherein the Pt group active metal precursor is chloride, nitrate, hydrochloride, chloride ammonia complex or nitrate ammonia complex of at least one of Pt, pd, ir, ru and Rh, and the dosage of the Pt group active metal precursor is converted according to the load of the Pt group active metal and 0.1-5% of the mass of the composite carrier.
beta-Mg in the composite carrier 2 V 2 O 7 The content of (A) is 30-60% of the total mass of the composite carrier.
The content of the boron additive accounts for 0.01-2% of the mass of the composite carrier.
In order to make the present invention more comprehensible, the technical solutions of the present invention are further described below with reference to specific embodiments, but the present invention is not limited thereto.
Example 1% Pd-0.03% B/50% beta-Mg 2 V 2 O 7 -50%SiO 2
(1) 17.9 g (0.15 mol) NH were weighed out 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g (0.15 mol) of Mg (OH) are added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for standby;
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) 2 V 2 O 7 Stirring and aging the powder at 85 ℃ for 8h, then gelling and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, and roasting at 450 ℃ for 6 h to obtain 50% beta-Mg 2 V 2 O 7 -50%SiO 2 A composite carrier;
(3) 0.199 g Pd (NH) was weighed out by the dipping method 3 ) 2 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, after which 10g of 50% beta-Mg was added 2 V 2 O 7 -50%SiO 2 The composite carrier is immersed under stirring for 6 hours, dried in a water bath at 90 ℃ and the product is ground to a powder and calcined at 450 ℃ for 6 hours to obtain 1% Pd-0.03% B/50% beta-Mg 2 V 2 O 7 -50%SiO 2 A catalyst.
1% of Pd-0.03% as described above, B/50% of beta-Mg 2 V 2 O 7 -50%SiO 2 After the catalyst is compacted and formed, the catalyst is crushed and sieved into 40-mesh granular catalyst for testing the catalytic performance. The test was carried out on a high-pressure fixed-bed reactor with a catalyst loading mass of 10.0 ml. Before reaction, the catalyst needs to be reduced for 2 hours at the temperature of 450 ℃ under normal pressure, so that the loaded active component exists in a simple substance form, and when the temperature is reduced to the reaction temperature, a solution containing 20 wt% of carbon penta resin-cyclohexane is introduced to react with hydrogen. The reaction conditions are as follows: the reaction temperature is 250 ℃, the reaction pressure is 8.0 MPa, and the mass space velocity of the raw material is 1.0 h -1 The molar ratio of hydrogen to carbon pentaresin-cyclohexane solution was 600. Bromine number analysis was performed by iodometry (SWB 2301-62) to calculate the conversion of petroleum resin hydrogenation (5 # resin for carbon five resin used in hydrogenation, bromine number 5.93 gBr/100 g), which is calculated as follows:
Figure DEST_PATH_IMAGE002
the active metal content in the catalyst was measured using ICP-MS. The dispersion degree of active metal in the catalyst is H 2 -O 2 And (4) testing a titration method. The reaction results are shown in Table 1.
Comparative example 1% Pd/50% beta-Mg 2 V 2 O 7 -50% SiO 2
(1) beta-Mg was prepared as in example 1 2 V 2 O 7
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) 2 V 2 O 7 Powder, 85 deg.CStirring and aging for 8h, gelatinizing and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, and roasting at 450 ℃ for 6 h to obtain 50% beta-Mg 2 V 2 O 7 -50%SiO 2 A composite carrier;
(3) 0.199 g Pd (NH) was weighed out by the dipping method 3 ) 2 Cl 2 Dissolved in 30 ml of deionized water, followed by addition of 10g of 50% beta-Mg 2 V 2 O 7 -50%SiO 2 The composite carrier is stirred, dipped for 6 hours, dried in water bath at 90 ℃, ground into powder and roasted for 6 hours at 450 ℃ to obtain 1 percent Pd/50 percent beta-Mg 2 V 2 O 7 -50%SiO 2 A catalyst.
Mixing the above 1% Pd/50% beta-Mg 2 V 2 O 7 - 50%SiO 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
Comparative example 2% Pd-0.03% 2
(1) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 A carrier;
(2) 0.199 g Pd (NH) was weighed out by the dipping method 3 ) 2 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, after which 10g of SiO was added 2 Stirring and immersing for 6 hours, drying in water bath at 90 ℃, grinding the product into powder, and roasting at 450 ℃ for 6 hours to obtain 1% Pd-0.03% B/SiO% 2 A catalyst.
The above 1% Pd-0.03% 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
Comparative example 3% Pd-0.03% 2 V 2 O 7
(1) 17.9 g NH were weighed 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g of Mg (OH) were added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for standby;
(2) 0.199 g Pd (NH) was weighed out by the dipping method 3 ) 2 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, after which 10g of beta-Mg was added 2 V 2 O 7 The composite carrier is stirred and dipped for 6 hours, then dried in water bath at 90 ℃, the product is ground into powder and roasted for 6 hours at 450 ℃, and the 1 percent Pd-0.03 percent B/beta-Mg is obtained 2 V 2 O 7 A catalyst.
1% of Pd-0.03% as described above B/beta-Mg 2 V 2 O 7 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
Comparative example 4% Pd-0.12% 2 V 2 O 7 -50%SiO 2
(1) 17.9 g NH were weighed 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g of Mg (OH) were added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for standby;
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) 2 V 2 O 7 Stirring and aging the powder at 85 ℃ for 8h, then gelling and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, roasting at 450 ℃ for 6 h,obtaining 50% beta-Mg 2 V 2 O 7 -50%SiO 2 A composite carrier;
(3) By dipping method, 0.199 g Pd (NH) is weighed 3 ) 2 Cl 2 And 0.069 g of boric acid was dissolved in 30 ml of deionized water, followed by addition of 10g of 50% beta-Mg 2 V 2 O 7 -50%SiO 2 The composite carrier is immersed under stirring for 6 hours, dried in a water bath at 90 ℃ and the product is ground to a powder and calcined at 450 ℃ for 6 hours to obtain 1% Pd-0.12% B/50% beta-Mg 2 V 2 O 7 -50%SiO 2 A catalyst.
1% Pd-0.12% as described above B/50% beta-Mg 2 V 2 O 7 -50%SiO 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
Example 2% Pt-0.03% B/50% beta-Mg 2 V 2 O 7 - 50%SiO 2
(1) 17.9 g NH were weighed 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g of Mg (OH) were added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for standby;
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) 2 V 2 O 7 Stirring and aging the powder at 85 ℃ for 8h, then gelling and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, and roasting at 450 ℃ for 6 h to obtain 50% beta-Mg 2 V 2 O 7 -50%SiO 2 A composite carrier;
(3) 0.181 g of Pt (NH) was weighed out by dipping method 3 ) 4 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, followed by addition10g 50%β-Mg 2 V 2 O 7 -50%SiO 2 The composite carrier is immersed under stirring for 6 hours, dried in a water bath at 90 ℃ and the product is ground to a powder and calcined at 450 ℃ for 6 hours to obtain a 1% Pt-0.03% B/50% beta-Mg 2 V 2 O 7 -50%SiO 2 A catalyst.
1% of the above Pt-0.03% 2 V 2 O 7 -50%SiO 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
Example 3% Pd-0.03% B/40% beta-Mg 2 V 2 O 7 -60%SiO 2
(1) 17.9 g NH were weighed 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g of Mg (OH) were added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for later use;
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) is 2 2 V 2 O 7 Stirring and aging the powder at 85 ℃ for 8h, then gelling and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, and roasting at 450 ℃ for 6 h to obtain 40% beta-Mg 2 V 2 O 7 -60%SiO 2 A composite carrier;
(3) 0.199 g Pd (NH) was weighed out by the dipping method 3 ) 2 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, after which 10g of 50% beta-Mg was added 2 V 2 O 7 -50%SiO 2 Composite carrier, stirring and immersing for 6 hours, drying in water bath at 90 ℃, grinding the product into powder and roasting at 450 ℃ for 6 hours, obtaining 1% Pd-0.03% B/40% beta-Mg% 2 V 2 O 7 -60%SiO 2 A catalyst.
1% of Pd-0.03% as described above, B/40% of beta-Mg 2 V 2 O 7 -60%SiO 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
Example 4.5% Pd-0.03% 2 V 2 O 7 -70%SiO 2
(1) 17.9 g NH were weighed 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g of Mg (OH) were added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for standby;
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) to (7) is 3, 24.3 g of orthosilicic acid alcohol ester and 3.0 g of beta-Mg are dripped into the alcohol-water solution 2 V 2 O 7 Stirring and aging the powder at 85 ℃ for 8h, then gelling and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, and roasting at 450 ℃ for 6 h to obtain 30% beta-Mg 2 V 2 O 7 -70%SiO 2 A composite carrier;
(3) 0.199 g Pd (NH) was weighed out by the dipping method 3 ) 2 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, followed by addition of 10g of 30% beta-Mg 2 V 2 O 7 -70%SiO 2 The composite carrier is immersed under stirring for 6 hours, dried in a water bath at 90 ℃ and the product is ground to a powder and calcined at 450 ℃ for 6 hours to obtain 1% Pd-0.03% B/30% beta-Mg 2 V 2 O 7 -70%SiO 2 A catalyst.
1% of Pd-0.03% as described above, B/30% of beta-Mg 2 V 2 O 7 -70%SiO 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh granules, and the catalyst was evaluated on carbon in the same manner as in example 1Five catalytic performances in the resin hydrofining reaction. The reaction results are shown in Table 1.
Example 5.5% Pd-0.03% 2 V 2 O 7 -40%SiO 2
(1) 17.9 g NH were weighed 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g of Mg (OH) were added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for standby;
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) to (2) is 3, 13.9 g of orthosilicic acid alcohol ester and 6.0 g of beta-Mg are dripped into the alcohol-water solution 2 V 2 O 7 Stirring and aging the powder at 85 ℃ for 8h, then gelling and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, and roasting at 450 ℃ for 6 h to obtain 60% beta-Mg 2 V 2 O 7 -40%SiO 2 A composite carrier;
(3) 0.199 g Pd (NH) was weighed out by the dipping method 3 ) 2 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, after which 10g of 60% beta-Mg was added 2 V 2 O 7 -40%SiO 2 The composite carrier is immersed under stirring for 6 hours, dried in a water bath at 90 ℃ and the product is ground to a powder and calcined at 450 ℃ for 6 hours to obtain 1% Pd-0.03% B/60% beta-Mg 2 V 2 O 7 -40%SiO 2 A catalyst.
1% of Pd-0.03% of B/60% of beta-Mg 2 V 2 O 7 -40%SiO 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
Example 6.5% Pd-0.03% 2 V 2 O 7 -50%SiO 2
(1) 17.9 g of NH were weighed 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g of Mg (OH) were added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for standby;
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) 2 V 2 O 7 Stirring and aging the powder at 85 ℃ for 8h, then gelling and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, and roasting at 450 ℃ for 6 h to obtain 50% beta-Mg 2 V 2 O 7 -50%SiO 2 A composite carrier;
(3) 0.0995 g Pd (NH) was weighed by dipping method 3 ) 2 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, after which 10g of 50% beta-Mg was added 2 V 2 O 7 -50%SiO 2 The composite carrier was immersed under stirring for 6 hours, dried in a water bath at 90 ℃ and the resultant was pulverized and then calcined at 450 ℃ for 6 hours to obtain a content of 0.5% Pd-0.03% B/50% beta-Mg 2 V 2 O 7 -50%SiO 2 A catalyst.
Pd-0.03% by weight of the above-mentioned 0.5%/50% beta-Mg 2 V 2 O 7 -50%SiO 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
Example 7.5% Pd-0.5% Pt-0.03% 2 V 2 O 7 -50%SiO 2
(1) 17.9 g NH were weighed 4 VO 3 Dissolved in hot water at 85 ℃ and then 8.9g of Mg (OH) were added 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder for standby;
(2) Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The mass ratio of (1) 2 V 2 O 7 Stirring and aging the powder at 85 ℃ for 8h, then gelling and aging at room temperature for 24h, drying the obtained gel in an oven at 120 ℃ for 36 h, grinding the obtained solid, and roasting at 450 ℃ for 6 h to obtain 50% beta-Mg 2 V 2 O 7 -50%SiO 2 A composite carrier;
(3) 0.0995 g Pd (NH) was weighed by dipping method 3 ) 2 Cl 2 、0.0855 g Pt(NH 3 ) 4 Cl 2 And 0.0172 g of boric acid was dissolved in 30 ml of deionized water, after which 10g of 50% beta-Mg was added 2 V 2 O 7 -50%SiO 2 Composite carrier, stirring and immersing for 6 hours, drying in 90 ℃ water bath, grinding the product to powder and roasting at 450 ℃ for 6 hours, obtaining 0.5% Pd-0.5% Pt-0.03% B/50% beta-Mg 2 V 2 O 7 -50%SiO 2 A catalyst.
Pd-0.5% of the above-mentioned 0.5% Pt-0.03% 2 V 2 O 7 -50%SiO 2 After the catalyst was compacted and molded, the catalyst was crushed and sieved to 40 mesh, and the catalytic performance of the catalyst in the carbon five resin hydrorefining reaction was evaluated in the same manner as in example 1. The reaction results are shown in Table 1.
TABLE 1
Figure DEST_PATH_IMAGE004
As can be seen from the comparison between example 1 and comparative examples 1 and 4, the modification of a proper amount of B element can improve the dispersion of the active metal in the catalyst, which is advantageous for improving the hydrogenation activity of the resin.
As can be seen from a comparison of example 1 with comparative examples 2 and 3, β -Mg 2 V 2 O 7 And SiO 2 The composite carrier can give consideration to both the surface area of the catalyst and the active metalDispersing, thereby reducing the loss of active metal.
As can be seen from comparison of examples 1 and 3 to 5, when beta-Mg 2 V 2 O 7 When the catalyst accounts for 30-60% of the mass of the catalyst, the catalyst has high hydrogenation activity and less loss of active metal after reaction, wherein 50% of beta-Mg is used 2 V 2 O 7 -50%SiO 2 The effect is the best for the composite carrier.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.

Claims (9)

1. A metal loss resistant C-V petroleum resin hydrogenation catalyst is characterized in that: comprises the following components:
(a) A Pt group active metal;
(b)β-Mg 2 V 2 O 7 /SiO 2 a composite carrier;
(c) And (4) an auxiliary agent boron.
2. The carbon five petroleum resin hydrogenation catalyst according to claim 1, characterized in that: the Pt group active metal is one or more of Pt, pd, ir, ru and Rh.
3. The carbon five petroleum resin hydrogenation catalyst according to claim 1, characterized in that: the load capacity of the Pt group active metal is 0.1-5% of the mass of the composite carrier.
4. The carbon five petroleum resin hydrogenation catalyst according to claim 1, characterized in that: beta-Mg in the composite carrier 2 V 2 O 7 The content of (A) is 30-60% of the total mass of the composite carrier.
5. The carbon five petroleum resin hydrogenation catalyst according to claim 1, characterized in that: the content of the boron additive is 0.01-2% of the mass of the composite carrier.
6. A method for preparing the carbon five petroleum resin hydrogenation catalyst according to claim 1, which is characterized in that: the method comprises the following steps:
(1)β-Mg 2 V 2 O 7 preparation of
Reacting NH 4 VO 3 Dissolving in hot water of 85 deg.C, adding Mg (OH) 2 Stirring thoroughly, evaporating to remove water, drying the obtained solid powder at 120 deg.C for 12 hr, calcining at 550 deg.C for 6 hr, and grinding thoroughly to obtain beta-Mg 2 V 2 O 7 Powder;
(2)β-Mg 2 V 2 O 7 /SiO 2 preparation of composite Carrier
Preparing 40 ml of alcohol-water solution according to a volume ratio of 1 2 V 2 O 7 And SiO 2 The dosage proportion is that a certain amount of orthosilicic acid alcohol ester and a certain amount of beta-Mg are dripped into the alcohol-water solution 2 V 2 O 7 Stirring and aging at 40-90 deg.C for 8 hr, gelatinizing and aging at room temperature for 24 hr, drying the gel at 120 deg.C for 36 hr, grinding the solid, and calcining at 450 deg.C for 6 hr to obtain beta-Mg 2 V 2 O 7 /SiO 2 A composite carrier;
(3) Preparation of the catalyst:
dissolving a Pt group active metal precursor and boric acid in deionized water according to a certain proportion by adopting an immersion method, and then adding the beta-Mg prepared in the step (2) 2 V 2 O 7 /SiO 2 And (3) stirring and soaking the composite carrier for 6 hours, drying the composite carrier in a water bath at 90 ℃, grinding the product into powder, and roasting the powder for 6 hours at 450 ℃ to obtain the hydrogenation catalyst.
7. The method for preparing a hydrocarbon five petroleum resin hydrogenation catalyst according to claim 6, wherein: NH used in step 1) 4 VO 3 And Mg (OH) 2 1 is 1.
8. The method for preparing a hydrocarbon five petroleum resin hydrogenation catalyst according to claim 6, wherein: the Pt group active metal precursor in the step 3) is chloride, nitrate, hydrochloride, chloride ammonia complex or nitrate ammonia complex of Pt group active metal.
9. Use of the hydrogenation catalyst of claim 1 in the hydrofinishing of carbon five petroleum resins.
CN202310001921.9A 2023-01-03 2023-01-03 Metal loss resistant carbon five petroleum resin hydrogenation catalyst Pending CN115814787A (en)

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