CN104128185B - The catalyst and preparation method and application of a kind of tetrahydrobiopterin synthesis naphthalene - Google Patents
The catalyst and preparation method and application of a kind of tetrahydrobiopterin synthesis naphthalene Download PDFInfo
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- CN104128185B CN104128185B CN201410317690.3A CN201410317690A CN104128185B CN 104128185 B CN104128185 B CN 104128185B CN 201410317690 A CN201410317690 A CN 201410317690A CN 104128185 B CN104128185 B CN 104128185B
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Abstract
A kind of catalyst of tetrahydrobiopterin synthesis naphthalene includes nickel and auxiliary agent, it is characterised in that catalyst quality percentage is that nickel element content is 3%~30%, and auxiliary element content is 0%~5%, and remaining is carrier.The present invention has preparation technology simple, the low advantage of cost.
Description
Technical field
The present invention relates to a kind of catalyst of tetrahydrobiopterin synthesis naphthalene and preparation method thereof and application method.
Background technology
Naphthane（It is called tetrahydronaphthalene, tetralin）, it is a kind of alicyclic aromatic hydrocarbon.Naphthane is water insoluble, with it is many often
Use solvent（Ethanol, ether, acetone, acetic acid, benzene and petroleum ether etc.）It is miscible, it is preferable high boiling solvent, can be widely applied to
The industrial circles such as paint, coating, ink, hard alloy, medicine, papermaking.Naphthane is mainly used as producing tetralone, also serves as
Grease, wax, the solvent of resin and paint, and can with benzene and ethanol with resulting mixture as the fuel of internal combustion engine, also serve as glazing
Terebinthine substitute in agent and coating.It has recently been demonstrated that in a fuel cell, naphthane is a kind of good hydrogen atom
Donor, its ability for quickly supplying hydrogen atom is that decahydronaphthalene is incomparable, thus very likely turn into a new generation it is cheap,
High efficient energy sources.
The seventies, due to the development of pesticide producing, in the urgent need to the naphthane that purity is high, sulfur content is low.Fushun oil is ground
Study carefully and carried out naphthalene hydrogenation and produce the research of naphthane, and small-scale test will be completed in the end of the year 1974.Then, by Dalian grease
Learn factory and completed scale-up in 1976, build up 100 tons/year and 30 tons/year of experimental rigs.Naphthane is largely used to manufacture and killed
The intermediate alpha naphthol of worm agent sevin（Alpha naphthol is also known as 1- naphthols, alpha-Naphthol）.Alpha naphthol is a kind of important fine chemistry industry
Intermediate, is widely used in medicine, agricultural chemicals, dyestuff, spices manufacture, in terms of chiral catalyst synthesis.Due to developing in recent years
The new application of many alpha naphthols, causes market demand to be continuously increased.
The production of naphthane mainly comes from the hydrogenation of naphthalene in the market, but is due to that naphthalene hydrogenation is that a consecutive is anti-
Should：The step of naphthalene one hydrogenation obtains naphthane, and naphthane is further hydrogenated to decahydronaphthalene, and the product of hydrogenation reaction is typically naphthane
With the mixture of decahydronaphthalene, it is necessary to which an additional step distillation operation comes into operation after two kinds of materials are separated, it is cumbersome complicated and
Operating cost is high.At present for naphthalene be hydrogenated with produce decahydronaphthalene research it is more, but for naphthalene be hydrogenated with produce naphthane research compared with
It is few, and the selectivity of naphthane is preferable not enough.The patent of the naphthalene hydrogenation synthesis naphthane of current domestic applications only has Fushun
Petroleum Chemical Engineering Institute（201110170289.8）And Dalian University of Technology（201210007610.5）Two, what is be respectively adopted is
Sulphided state（Nickel molybdenum si molecular sieves）With carbonization state（Nickel molybdenum tungsten）Catalyst.In addition, noble metal and transition metal etc. also may be used
It is used as the catalyst of naphthalene hydrogenation synthesis naphthane.As above the catalyst preparation process of sulphided state and carbonization state is complicated in patent, and
It is existing studies have reported that noble metal catalyst price it is high, therefore the application of transition-metal catalyst has broad prospects.
The content of the invention
Simple, the catalyst and its system of the low tetrahydrobiopterin synthesis naphthalene of cost it is an object of the invention to provide a kind of preparation technology
Preparation Method and application.
The catalyst of the present invention includes nickel and auxiliary agent, it is characterised in that catalyst quality percentage is that nickel element content is
3%~30%, auxiliary element content is 0%~5%, and remaining is carrier.
Auxiliary element as described above includes the one or more of cobalt, molybdenum, tungsten, zirconium, yttrium, cerium, lanthanum and manganese etc..
Carrier is γ-Al2O3。
The preparation method of the present invention comprises the following steps：
1）The preparation of catalyst precursor：Using incipient impregnation, the solable matter and additive of nickel and auxiliary agent are existed
After being dissolved in water, γ-Al are added to2O3On carrier, after 5~10 h of dipping, clear liquid is poured out, 2~10 are dried at 50~150 DEG C
H, obtains catalyst precursor；
2）The pretreatment of catalyst precursor：Catalyst precursor is calcined or without roasting, then in hydrogen
Reduced under atmosphere.The temperature of roasting is 350~550 DEG C, and the time of roasting is 2~8h；The hydrogen flow rate of reduction be 10~
130mL/min, the temperature of reduction is 300~800 DEG C, and the time of reduction is 10 min~5h.
In catalyst preparation process, the solable matter of nickel includes nickel nitrate and nickel acetate.The solable matter of auxiliary agent point
Wei not cobalt nitrate, ammonium molybdate, ammonium metatungstate, zirconium nitrate, zirconyl nitrate, yttrium nitrate, cerous nitrate, lanthanum nitrate or manganese nitrate.
Additive includes citric acid, tartaric acid, oxalic acid, acetic acid, the one or more of ethanol and ethylenediamine etc..Additive
Addition is 0~3 times of metallic element mole total amount in nickel and auxiliary agent solable matter.
Catalyst application of the present invention：
It is first naphthalene in mass ratio by naphthalene and solvent hexamethylene:Hexamethylene=0.08~0.15:Autoclave is placed in after 1 mixing
In, then according to naphthalene:Catalyst（Mass ratio）=2~4:Catalyst is added rapidly in autoclave by 1 ratio, by autoclave
After middle air is drained, it is passed through hydrogen and boosts to 2~5 MPa, reaction temperature is 80~350 DEG C, and mixing speed is 600~800
Rpm, the reaction time is 0.5~4 h.
The present invention has the following advantages that compared with prior art：
1st, the conversion ratio of naphthalene of the present invention is up to 95%~100%, and the selectivity of naphthane is 97%~99%.
2nd, method for preparing catalyst is simple, and cost is low.
3rd, reaction temperature and pressure are relatively low, and the reaction time is short.
Embodiment
Embodiment 1
Using incipient impregnation, after fully being dissolved in water by the nickel acetate of metal nickel content 10wt% in catalyst, plus
Enter to γ-Al2O3, clear liquid is poured out after 5 h, in drying 5 h at 120 DEG C, without roasting, in 30 mL/min hydrogen flow rate
After 4 h of lower 430 DEG C of reduction, protect down standby with reducing gas.Naphthalene and solvent ring are added in 0.1 L high-pressure stirring reactors
The mass concentration ratio of hexane is 0.09 mL of solution 40 and the g of catalyst 1.5, in the MPa of pressure 2,80 DEG C of reaction temperature, stirring
Under conditions of the rpm of speed 750,2h is reacted.The hydrogenation reaction conversion ratio of naphthalene is up to 99%, and naphthane is selective up to 97%.
Embodiment 2
Using incipient impregnation, after fully being dissolved in water by the nickel acetate of metal nickel content 10wt% in catalyst, plus
Enter to γ-Al2O3, clear liquid is poured out after 5 h, in drying 2h at 150 DEG C, without roasting, under 30 mL/min hydrogen flow rate
After 430 DEG C of 4 h of reduction, protect down standby with reducing gas.Naphthalene and solvent hexamethylene are added in 0.1 L high-pressure stirring reactors
The mass concentration ratio of alkane is 0.15 mL of solution 40 and the g of catalyst 1.5, in the MPa of pressure 3,130 DEG C of reaction temperature, stirring speed
Spend under conditions of 800 rpm, react 2h.The hydrogenation reaction conversion ratio of naphthalene is up to 95%, and naphthane is selective up to 99%.
Embodiment 3
Using incipient impregnation, by the nickel acetate of metal nickel content 20wt% in catalyst, auxiliary agent W content 5wt%'s is inclined
Ammonium tungstate, after nickel acetate and ammonium metatungstate are fully dissolved in water, is added to γ-Al2O3, clear liquid is poured out after 10 h, in 150
Dried at DEG C after 8 h, 450 DEG C of 4 h of roasting, 430 DEG C of 4 h of reduction, are protected with reducing gas under 30 mL/min hydrogen flow rate
It is standby under shield.It is 0.09 solution 40 that the mass concentration ratio of naphthalene and solvent hexamethylene is added in 0.1 L high-pressure stirring reactors
The mL and g of catalyst 1.5, in the MPa of pressure 4,130 DEG C of reaction temperature under conditions of the rpm of mixing speed 750, reacts 2 h.Naphthalene
Hydrogenation reaction conversion ratio up to 100%, naphthane selectivity is up to 99%.
Embodiment 4
Using incipient impregnation, by metal nickel content 20wt% nickel acetate in catalyst, auxiliary agent W content 4.5wt%
Ammonium metatungstate and auxiliary agent zirconium content 0.5wt% zirconium nitrates, after nickel acetate, ammonium metatungstate and zirconium nitrate are fully dissolved in water, plus
Enter to γ-Al2O3, clear liquid is poured out after 8 h, in being dried at 150 DEG C after 8 h, 450 DEG C of 4 h of roasting, in 30 mL/min hydrogen
Flow velocity 4 h of lower 430 DEG C of reduction, protect down standby with reducing gas.Naphthalene and solvent are added in 0.1 L high-pressure stirring reactors
The mass concentration ratio of hexamethylene is 0.08 mL of solution 40 and the g of catalyst 1.5, in the MPa of pressure 4,130 DEG C of reaction temperature,
Under conditions of the rpm of mixing speed 750,2 h are reacted.The hydrogenation reaction conversion ratio of naphthalene is up to 100%, and naphthane is selective up to 99%.
Embodiment 5
Using incipient impregnation, by the nickel nitrate of metal nickel content 6.5wt% in catalyst, additive ethanol is nickel mole
0.5 times, additive tartaric acid is 0.5 times of nickel mole, by nickel nitrate, ethanol and tartaric acid in water fully dissolving after, plus
Enter to γ-Al2O3, clear liquid is poured out after 5 h, in being dried at 120 DEG C after 5 h, 300 DEG C of 8 h of roasting, in 30 mL/min hydrogen
Catalyst is obtained after 5 h of the lower 300 DEG C of reduction of flow velocity, catalyst protects down standby with reducing gas.It is anti-in 0.1 L high-pressure stirrings
The mL of solution 40 and the g of catalyst 1.5 that the mass concentration ratio that naphthalene and solvent hexamethylene are added in kettle is 0.09 are answered, in pressure 3
Under conditions of MPa, 110 DEG C of reaction temperature, the rpm of mixing speed 650,2h is reacted.The hydrogenation reaction conversion ratio of naphthalene up to 100%,
Naphthane is selective up to 98%.
Embodiment 6
Using incipient impregnation, by the nickel nitrate of metal nickel content 10wt% in catalyst, additive ethylenediamine is that nickel rubs
Your 2 times, after nickel nitrate and ethylenediamine are fully dissolved in water, are added to γ-Al2O3, clear liquid is poured out after 5 h, in 50 DEG C
After the lower h of drying 10,450 DEG C of 4 h of roasting, 430 DEG C of 5 h of reduction, are protected with reducing gas under 10 mL/min hydrogen flow rate
It is standby under shield.It is 0.09 solution 40 that the mass concentration ratio of naphthalene and solvent hexamethylene is added in 0.1 L high-pressure stirring reactors
The mL and g of catalyst 1.5, in the MPa of pressure 3,130 DEG C of reaction temperature under conditions of the rpm of mixing speed 650, reacts 2h.Naphthalene
Hydrogenation reaction conversion ratio up to 100%, naphthane selectivity is up to 98%.
Embodiment 7
Using incipient impregnation, by the nickel acetate of metal nickel content 3wt% in catalyst, auxiliary agent W content 1wt% inclined tungsten
Sour ammonium and auxiliary agent lanthanum content 0.5wt% lanthanum nitrates, after nickel acetate, ammonium metatungstate and lanthanum nitrate are fully dissolved in water, are added to
γ-Al2O3, clear liquid is poured out after 5 h, in being dried at 120 DEG C after 8 h, 550 DEG C of 2 h of roasting, in 30 mL/min hydrogen flow rate
After 10 min of lower 800 DEG C of reduction, protect down standby with reducing gas.Naphthalene and solvent are added in 0.1 L high-pressure stirring reactors
The mass concentration ratio of hexamethylene is 0.09 mL of solution 40 and the g of catalyst 1.5, in pressure 5MPa, 80 DEG C of reaction temperature, stirring
Under conditions of the rpm of speed 750,4 h are reacted.The hydrogenation reaction conversion ratio of naphthalene is up to 97%, and naphthane is selective up to 99%.
Embodiment 8
Using incipient impregnation, by the nickel nitrate of metal nickel content 20wt% in catalyst, additive oxalic acid is nickel mole
2 times, by nickel nitrate and oxalic acid in water fully dissolving after, be added to γ-Al2O3, clear liquid is poured out after 8 h, in being done at 120 DEG C
After dry 8 h, 450 DEG C of 4 h of roasting, 430 DEG C of 5 h of reduction, protect down standby with reducing gas under 30 mL/min hydrogen flow rate
With.The mass concentration ratio of addition naphthalene and solvent hexamethylene is 0.09 in 0.1 L high-pressure stirring reactors the mL of solution 40 and urge
The g of agent 1.0, in the MPa of pressure 4,350 DEG C of reaction temperature under conditions of the rpm of mixing speed 750, reacts 0.5 h.Naphthalene plus
Hydrogen reaction conversion ratio is up to 100%, and naphthane is selective up to 97%.
Embodiment 9
Using incipient impregnation, by the nickel acetate of metal nickel content 20wt% in catalyst, auxiliary agent W content 5wt%'s is inclined
Ammonium tungstate and additive citric acid are 3 times of nickel and tungsten mole total amount, by nickel acetate, ammonium metatungstate and citric acid in water fully
After dissolving, γ-Al are added to2O3, clear liquid is poured out after 10 h, in being dried at 120 DEG C after 8 h, 450 DEG C of 4 h of roasting, 30
ML/min hydrogen flow rate 4 h of lower 430 DEG C of reduction, protect down standby with reducing gas.In 0.1 L high-pressure stirring reactors
The mass concentration ratio for adding naphthalene and solvent hexamethylene is 0.09 mL of solution 40 and the g of catalyst 0.7, in the MPa of pressure 4, is reacted
Under conditions of 130 DEG C of temperature, the rpm of mixing speed 750,1 h is reacted.The hydrogenation reaction conversion ratio of naphthalene is up to 100%, and naphthane is selected
Selecting property is up to 99%.
Claims (2)
1. a kind of catalyst of tetrahydrobiopterin synthesis naphthalene, it is characterised in that catalyst includes nickel and auxiliary agent, it is characterised in that catalyst matter
It is that nickel element content is 6.5%~30% to measure percentage, and auxiliary element content is 1.5%~5%, and remaining is carrier；
Described auxiliary element includes the one or more in cobalt, molybdenum, tungsten, zirconium, yttrium, cerium, lanthanum, manganese；
Described carrier is γ-Al2O3；
And prepared by following steps：
1）The preparation of catalyst precursor：Using incipient impregnation, by the solable matter and additive of nickel and auxiliary agent in water
After dissolving, γ-Al are added to2O3On carrier, after 5~10 h of dipping, clear liquid is poured out, 2~10 h are dried at 50~150 DEG C,
Obtain catalyst precursor；
2）The pretreatment of catalyst precursor：By catalyst precursor without roasting, then reduce, reduce in a hydrogen atmosphere
Hydrogen flow rate be 10~130mL/min, the temperature of reduction is 300~800 DEG C, and the time of reduction is 10 min~5h；
Described additive includes the one or more in citric acid, tartaric acid, oxalic acid, acetic acid, ethanol, ethylenediamine；
The addition of the additive is 1~3 times of metallic element mole total amount in nickel and auxiliary agent solable matter；
The solable matter of described nickel is nickel acetate, and the solable matter of auxiliary agent is cobalt nitrate, ammonium molybdate, ammonium metatungstate, nitre
Sour zirconium, zirconyl nitrate, yttrium nitrate, cerous nitrate, lanthanum nitrate or manganese nitrate.
2. a kind of application of the catalyst of tetrahydrobiopterin synthesis naphthalene as claimed in claim 1, it is characterised in that comprise the following steps：
It is first naphthalene in mass ratio by naphthalene and solvent hexamethylene:Hexamethylene=0.08~0.15:It is placed in after 1 mixing in autoclave, so
Afterwards according to naphthalene:Catalyst quality ratio is 2~4:Catalyst is added rapidly in autoclave by 1 ratio, by air in autoclave
After draining, it is passed through hydrogen and boosts to 2~5MPa, reaction temperature is 80~130 DEG C, and mixing speed is 600~800rpm, during reaction
Between be 0.5~4h.
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| CN106076402B (en) * | 2016-06-13 | 2018-11-16 | 北京化工大学 | A kind of preparation method and applications of the grade hole MFI nanometer sheet of high dispersive nickel surface modification |
| CN108325517B (en) * | 2018-01-18 | 2020-10-09 | 中国石油大学(华东) | Catalyst for producing tetrahydronaphthalene by naphthalene selective hydrogenation and preparation method thereof |
| CN109289860B (en) * | 2018-09-29 | 2021-08-20 | 中国科学院山西煤炭化学研究所 | Catalyst for producing refined naphthalene and byproduct tetrahydronaphthalene by hydrofining industrial naphthalene and preparation method and application thereof |
| CN110903154A (en) * | 2019-11-29 | 2020-03-24 | 大连理工大学 | Novel process for preparing tetrahydronaphthalene from double-circulation naphthalene oil |
| CN114471570B (en) * | 2020-10-23 | 2024-01-30 | 中国石油化工股份有限公司 | Naphthalene selective hydrogenation catalyst and preparation method and application thereof |
| CN116037124A (en) * | 2021-10-28 | 2023-05-02 | 中国石油化工股份有限公司 | Preparation method of pre-reduction hydrogenation catalyst containing nickel and zirconium |
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| CN102872875A (en) * | 2012-09-19 | 2013-01-16 | 太原理工大学 | Slurry bed methanation catalyst, preparing method and application |
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| US20050234275A1 (en) * | 2004-04-16 | 2005-10-20 | Shifang Luo | Reduction of naphthalene concentration in aromatic fluids |
| CN102553608A (en) * | 2010-12-24 | 2012-07-11 | 中国石油化工集团公司 | Supported hydrogenation catalyst as well as preparation method and application thereof |
| CN102838438B (en) * | 2011-06-23 | 2014-07-23 | 中国石油化工股份有限公司 | Method for producing tetrahydronaphthalene through naphthalene hydrogenation |
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| CN102872875A (en) * | 2012-09-19 | 2013-01-16 | 太原理工大学 | Slurry bed methanation catalyst, preparing method and application |
Non-Patent Citations (1)
| Title |
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| Naphthalene hydrogenation over a NiMo/g-Al2O3 catalyst: Experimental study and kinetic modelling;Carlos M. Corte´s Romero et al.;《Catalysis Today》;20070830;第130卷;第231-242页 * |
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