CN115007168B - Preparation method of catalyst for converting short-chain fatty acid into hydrocarbon cleaning agent - Google Patents

Preparation method of catalyst for converting short-chain fatty acid into hydrocarbon cleaning agent Download PDF

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CN115007168B
CN115007168B CN202210702085.2A CN202210702085A CN115007168B CN 115007168 B CN115007168 B CN 115007168B CN 202210702085 A CN202210702085 A CN 202210702085A CN 115007168 B CN115007168 B CN 115007168B
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catalyst
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niobium
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CN115007168A (en
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张震威
乐传俊
刘宝亮
吴泽颖
魏雪娇
马小诗
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Changzhou Institute of Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/889—Manganese, technetium or rhenium
    • B01J23/8892—Manganese
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/207—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms from carbonyl compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/24—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/24—Hydrocarbons
    • C11D7/241—Hydrocarbons linear
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock

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  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention relates to the technical field of chemical industry, in particular to a preparation method of a catalyst for converting short-chain fatty acid into hydrocarbon cleaning agent, which solves the problems of harsh catalytic reaction conditions, longer process route, overhigh investment cost and the like in the process of preparing long-chain alkane by using waste short-chain fatty acid; comprising the following steps: step 1) uniformly mixing a nickel salt compound with an organic reagent according to a certain proportion, and stirring at a certain temperature to prepare a solution a; step 2) mixing manganese salt and water in a certain proportion, stirring at a certain temperature to prepare a solution b, and then adding the solution b into a reaction kettle to be uniformly mixed with the solution a; step 3) mixing niobium salt and water in a certain proportion, and stirring at a certain temperature to prepare a solution c; step 4) introducing the solution c into a reaction kettle at a certain temperature and flow rate, and stirring and reacting to obtain a mixture d; step 5) continuously increasing the temperature of the reaction kettle; and 6) calcining the solid e obtained by filtering in the step 6) in a high-temperature atmosphere furnace to obtain the target catalyst.

Description

Preparation method of catalyst for converting short-chain fatty acid into hydrocarbon cleaning agent
Technical Field
The invention relates to the technical field of chemical industry, in particular to a preparation method of a catalyst for converting short-chain fatty acid into hydrocarbon cleaning agent.
Background
The cleaning of the surface of the metal parts is an indispensable process for mechanical manufacture, and the main purpose of the cleaning is to clean the pollutants such as greasy dirt, dust and the like on the metal surfaces. If a small amount of oxygen and other pollutants are mixed in the cleaning liquid, etching points are generated on the surface of the workpiece to influence the quality of the parts. At present, the hydrocarbon cleaning agent can effectively prevent metal corrosion and can keep the appearance of metal parts bright and clean. The main component of the latest hydrocarbon cleaning agent is saturated alkane compound and contains C of carbon number 9 -C 12 In the past, the material is obtained by converting petrochemical raw materials through a series of procedures. However, the process has the disadvantages of high equipment investment cost and complex procedures; sulfur, aromatic hydrocarbon and other impurities in the product can influence the environment and human health; the main component of the catalyst has a plurality of types of isomers of alkane and a wider distillation range.
Petrochemical raw materials are non-renewable resources, and along with the increasing exhaustion of global petrochemical resources, the development of conversion and upgrading of biomass raw materials into other chemical products becomes one of ideal choices. The fatty acid is a typical biomass platform compound, is a renewable resource with wide sources, and can be converted into hydrocarbon compounds to effectively solve the problems. At present, grease or long-chain fatty acid is used at home and abroad to obtain alkane compounds through high-temperature catalytic hydrogenation, for example, lauric acid is used for hydrogenation to directly obtain C 12 Alkanes, however, are costly in raw materials.
The current preparation process mainly comprises the following steps: step 1, two molecules of fatty acid undergo a C-C coupling reaction (also called ketone decarboxylation) under the action of a catalyst to generate one fatty ketone molecule; and step 2, performing saturated hydrodeoxygenation on the aliphatic ketone to form alkane.
The choice of catalyst is particularly important in this process, as are the early, strongly basic catalysts in the ketonization reaction: mgO, caO, baO, etc., have relatively high catalyst activity but relatively poor stability. Another class of amphoteric oxides such as: tiO (titanium dioxide) 2 、CeO 2 、ZrO 2 And the like, in the catalytic reaction, the activity, the selectivity and the stability are higher, but the reaction condition is more severe, the higher reaction temperature is needed, and the energy consumption is higher. In the second step of hydrodeoxygenation reaction, noble metal catalysts such as Pd, pt, ru and the like are usually used, so that the investment cost is excessive, and the reaction process route is longer.
In conclusion, it can be seen that a catalyst with better properties is lacking in the current preparation process.
Disclosure of Invention
In view of the problems mentioned in the background, it is an object of the present invention to provide a process for converting short chain fatty acids to hydrocarbonsThe preparation method of the catalyst of the cleaning agent effectively solves the problems of harsh catalytic reaction conditions, longer process route, overhigh investment cost and the like in the process of preparing long-chain alkane by using waste short-chain fatty acid, and the catalyst prepared by the method has higher activity, stability and selectivity, simplicity, practicability and lower cost, has a nano structure, and can convert short-chain fatty acids such as valeric acid, caproic acid and the like into C in one step 9 -C 12 And the like.
The technical aim of the invention is realized by the following technical scheme: a method for preparing a catalyst for converting short chain fatty acids into hydrocarbon cleaning agents, comprising the following steps:
A. preparation of the catalyst:
step 1) uniformly mixing a nickel salt compound with an organic reagent according to a certain proportion, stirring at a certain temperature to prepare a solution a, and adding the solution a into a reaction kettle;
step 2) mixing manganese salt and water in a certain proportion, stirring at a certain temperature to prepare a solution b, and then adding the solution b into a reaction kettle to be uniformly mixed with the solution a;
step 3) mixing niobium salt and water in a certain proportion, and stirring at a certain temperature to prepare a solution c;
step 4) introducing the solution c into a reaction kettle at a certain temperature and flow rate, and stirring and reacting to obtain a mixture d;
step 5) after the mixture d is stable, continuously increasing the temperature of the reaction kettle to accelerate the formation of the catalyst structure;
after the reaction of the step 6), placing the solid e obtained by filtering into a high-temperature atmosphere furnace for calcining to obtain a target catalyst;
wherein, the proportion of the solution a in the step 1) is as follows: 1-5 parts of nickel salt compound; 95-99 parts of organic reagent;
the proportion of the solution b in the step 2) is as follows: 10-20 parts of manganese salt; 80-90 parts of water solvent;
the proportion of niobium salt in the step 3) is as follows: 10-40 parts of niobium salt; 60-90 parts of water solvent.
2. The method of claim 1, wherein the nickel salt compound in step 1) is at least one of nickel acetylacetonate, nickel acetate, nickel octoate, and nickel benzoate.
3. The method for preparing a catalyst for converting short chain fatty acids into hydrocarbon cleaning agent according to claim 1, wherein at least one of valeric acid, caproic acid, heptanoic acid and caprylic acid is used as the organic reagent in step 1).
4. The method for preparing a catalyst for converting short chain fatty acids into hydrocarbon cleaning agent according to claim 1, wherein the manganese salt in step 2) is at least one of potassium permanganate, manganese nitrate, manganese acetate, manganese chloride and manganese sulfate.
5. The method for preparing a catalyst for converting short chain fatty acids into hydrocarbon cleaning agent according to claim 1, wherein the niobium salt in step 3) is at least one of niobium pentachloride, niobium tartrate, niobium oxalate and niobium citrate.
6. The method for preparing a catalyst for converting short chain fatty acids into hydrocarbon cleaning agents according to claim 1, wherein the reaction temperature in step 4) is controlled to be 0-100 ℃; the dropping speed is 0.1-10 ml/min; the stirring speed is 20-300 rpm; the reaction time is 30 min-4 h after the dripping is completed.
7. The method for preparing a catalyst for converting short chain fatty acids into hydrocarbon cleaning agents according to claim 1, wherein in step 5), the temperature is 120-200 ℃ and the time is 6-36 h.
8. The method for preparing a catalyst for converting short chain fatty acids into hydrocarbon cleaning agents according to claim 1, wherein the temperature rising rate of the treatment in the high temperature atmosphere furnace in step 6) is 1-10 ℃/min, the calcination temperature is 500-800 ℃ and the time is 3-10 h.
9. The method for preparing a catalyst for converting short chain fatty acids into hydrocarbon cleaning agent according to claim 1, wherein the gas used in the atmosphere furnace in step 6) is H 2 /Ar，H 2 /N 2 ，H 2 Mixed gas of He, H thereof 2 Mass fraction of (2)The number is 1-10%.
In summary, the invention has the following advantages:
(1) The catalyst used in the invention has both ketonization activity and hydrodeoxygenation activity, can convert short-chain fatty acid into long-carbon-chain alkane in one step, and can shorten the whole process route. The catalyst mechanism is as follows: according to the core-shell structure of the catalyst, the Mn-Nb carrier at the outer layer has more hole oxygen structures, can efficiently catalyze fatty acid to generate ketone, and then the fatty ketone enters the catalyst to contact with Ni active phase for further hydrodeoxygenation reaction to generate alkane; the catalyst can reduce the emission of three wastes, is beneficial to reducing energy consumption and reduces the harm to the environment.
(2) The catalyst prepared by the invention has better performance in the ketonization reaction of fatty acid compared with other patents, for example, the catalyst used in the ketonization reaction is CaO, HAP, ceO as described in the patent CN202010118816.X 2 、ZnO 2 、Al 2 O 3 And ZrO(s) 2 In which the base species are susceptible to corrosion by carboxylic acids to reduce catalytic performance.
The ketonization reaction efficiency of Nb-Mn phase in the invention is far higher than CeO 2 、ZrO 2 And species, the reaction time is shorter. In addition, the hydrogenation reaction of the aliphatic ketone is applicable to catalysts such as noble metals Pd, re and the like, and the Ni catalyst is used in the invention, so that the cost of raw materials can be saved; and the activity of the prepared catalyst is not reduced after the catalyst is repeatedly used for a plurality of times in the fatty acid ketonization reaction, which proves that the catalyst has higher stability.
(3) The catalyst prepared by the invention is also applicable to the reactions of other long-chain fatty acids, such as: the conversion rate of the directional coupling reaction reduction of the n-octanoic acid, the n-decanoic acid, the lauric acid, the myristic acid, the palmitic acid, the stearic acid and the like can reach 100 percent, and the alkane yield can reach more than 50 percent.
Drawings
FIG. 1 is a schematic representation of XRD characterization of the Ni/MnNbOx catalyst of example 1;
FIG. 2 is a TEM characterization schematic of the Ni/MnNbOx catalyst of example 2;
FIG. 3 is a graph of gas chromatographic analysis of n-hexanoic acid to 6-undecone and n-undecane (1 h after reaction in example 1);
FIG. 4 is a mass spectrum of a nonone of the present invention;
FIG. 5 is a mass spectrum of nonane of the present invention;
FIG. 6 is a mass spectrum of undecanone of the present invention;
FIG. 7 is a mass spectrum of undecane of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The fermentation industry produces a large amount of waste organic acids, the main components of which are valeric acid, caproic acid and the like. In order to save the cost and realize sustainable development, the invention prepares long-chain alkane C by using the short-chain fatty acid 9 -C 12 Can effectively reduce the cost and realize the development road of green economy.
[ example 1 ]
Dissolving 5g of nickel acetylacetonate in 95ml of valeric acid, stirring uniformly to prepare a solution a, dissolving 20g of potassium permanganate in 80ml of water, stirring uniformly, and pouring into the solution a to prepare a solution b; dissolving 40g of niobium pentachloride in 60ml of water to prepare a mixture c, dropwise adding 0.1ml/min of solution c into solution b, keeping the temperature of the solution b at 0 ℃, stirring at a speed of 20 revolutions per minute, and reacting for 30min after the dropwise adding is completed to form solution d; after the solution d is stable, the temperature is increased to 120 ℃ and the reaction time is 6 hours, after the reaction is finished, the solution is cooled and filtered to obtain brown solid e, the brown solid e is put into a high-temperature atmosphere furnace, and 1 percent of H is introduced 2 Heating Ar mixed gas to 500 ℃ at a heating rate of 1 ℃/min, and calcining at constant temperature for 3 hours; and cooling and taking out the solid to obtain the Ni/MnNbOx catalyst (shown in figure 1).
[ example 2 ]
1g of nickel acetate was dissolved in 99ml of hexanoic acid and stirredSolution a is prepared uniformly, 10g of manganese nitrate is dissolved in 90ml of water, stirred uniformly and poured into solution a to prepare solution b. 10g of niobium tartrate was dissolved in 90ml of water to prepare a mixture c, and the solution c was added dropwise to the solution b at 10ml/min while maintaining the temperature of the solution b at 100℃and the stirring rate at 300 rpm, and the reaction time was 4 hours after the completion of the dropwise addition to form a solution d. After the solution d is stable, the temperature is increased to 200 ℃, the reaction time is 36 hours, after the reaction is finished, the mixture is cooled and filtered to obtain brown solid e, the brown solid e is put into a high-temperature atmosphere furnace, and 5 percent of H is introduced 2 /N 2 The temperature of the mixed gas is increased to 800 ℃ at a speed of 10 ℃/min, and the mixed gas is calcined for 10 hours at constant temperature. And cooling and taking out the solid to obtain the Ni/MnNbOx catalyst (shown in figure 2).
[ example 3 ]
3g of nickel octoate is dissolved in 97ml of heptanoic acid and stirred uniformly to prepare a solution a, 15g of manganese chloride is dissolved in 85ml of water and stirred uniformly, and then the solution a is poured into the solution a to prepare a solution b. 20g of niobium oxalate was dissolved in 80ml of water to prepare a mixture c, and the solution c was added dropwise to the solution b at 5ml/min while maintaining the temperature of the solution b at 50℃and the stirring rate at 150 rpm, and the reaction time was 2 hours after the completion of the dropwise addition, to form a solution d. After the solution d is stable, the temperature is increased to 150 ℃ and the reaction time is 20 hours, after the reaction is finished, the solution is cooled and filtered to obtain brown solid e, the brown solid e is put into a high-temperature atmosphere furnace, and 10 percent of H is introduced 2 And heating the mixture of the catalyst and the He at a heating rate of 5 ℃/min to 600 ℃, and calcining for 5 hours at constant temperature. And cooling and taking out the solid to obtain the Ni/MnNbOx catalyst.
[ example 4 ]
2g of nickel benzoate is dissolved in 98ml of octanoic acid and stirred uniformly to prepare a solution a, 20g of manganese sulfate is dissolved in 80ml of water and stirred uniformly, and then the solution a is poured into the solution a to prepare a solution b. 20g of niobium citrate is dissolved in 80ml of water to prepare a mixture c, and the solution c is added into the solution b dropwise at a rate of 5ml/min while keeping the temperature of the solution b at 100 ℃, the stirring rate is 200 rpm, and the reaction time is 1h after the completion of the dropwise addition, so as to form a solution d. After the solution d is stable, the temperature is increased to 180 ℃, the reaction time is 15 hours, after the reaction is finished, the mixture is cooled and filtered to obtain brown solid e, the brown solid e is put into a high-temperature atmosphere furnace, and 2 percent of H is introduced 2 Heating Ar mixed gas to 700 ℃ at a heating rate of 8 ℃/min, and keeping the temperature constantCalcining for 8h. And cooling and taking out the solid to obtain the Ni/MnNbOx catalyst.
[ example 5 ]
5g of nickel acetylacetonate is dissolved in 95ml of caproic acid and stirred uniformly to prepare a solution a, 20g of manganese sulfate is dissolved in 80ml of water and stirred uniformly, and then the solution a is poured into the solution a to prepare a solution b. 25g of niobium citrate was dissolved in 75ml of water to prepare a mixture c, and the solution c was added dropwise to the solution b at 5ml/min while maintaining the temperature of the solution b at 100℃and the stirring rate at 200 rpm, and the reaction time was 1h after the completion of the dropwise addition to form a solution d. After the solution d is stable, the temperature is increased to 180 ℃, the reaction time is 15 hours, after the reaction is finished, the mixture is cooled and filtered to obtain brown solid e, the brown solid e is put into a high-temperature atmosphere furnace, and 2 percent of H is introduced 2 And heating Ar mixed gas to 700 ℃ at a heating rate of 8 ℃/min, and calcining at constant temperature for 8 hours. And cooling and taking out the solid to obtain the Ni/MnNbOx catalyst.
Ni/MnNbO x The catalyst was used for performance testing: weighing 0.2g of fatty acid, 0.1g of catalyst, 20ml of solvent cyclohexane, filling Ar gas into a reaction kettle for three times to remove redundant oxygen, filling Ar gas into the reaction kettle for 0.1Mpa, heating to react at 200 ℃ for 3 hours, and obtaining the results shown in tables 1 and 2.
TABLE 1 n-valeric acid in Ni/MnNbO x Reaction results under catalysis
Note that: the catalyst amount was 0.1g, n-valeric acid 0.2g, cyclohexane solvent 20ml, temperature 200 ℃ and time 3h, and the mass spectra of the products 5-nonanone and nonane are shown in fig. 4 and 5.
TABLE 2 n-caproic acid in Ni/MnNbO x Reaction results under catalysis
Note that: the catalyst dosage is 0.1g, the n-caproic acid is 0.2g, the solvent is cyclohexane is 20ml, the temperature is 200 ℃ and the time is 3h. * Fig. 3 is an example of a gas chromatographic trace analysis of the catalytic reaction, and fig. 6 and 7 are mass spectrograms characterization of 6-undecone and undecane.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. Use of a catalyst for catalyzing the one-step conversion of n-pentanoic acid or n-hexanoic acid to n-nonane or n-undecane, characterized in that the preparation of the catalyst comprises the steps of:
A. preparation of the catalyst:
step 1) uniformly mixing a nickel salt compound with an organic reagent according to a certain proportion, stirring at a certain temperature to prepare a solution a, and adding the solution a into a reaction kettle;
step 2) mixing manganese salt and water in a certain proportion, stirring at a certain temperature to prepare a solution b, and then adding the solution b into a reaction kettle to be uniformly mixed with the solution a;
step 3) mixing niobium salt and water in a certain proportion, and stirring at a certain temperature to prepare a solution c;
step 4) introducing the solution c into a reaction kettle at a certain temperature and flow rate, and stirring and reacting to obtain a mixture d;
step 5) after the mixture d is stable, continuously increasing the temperature of the reaction kettle to accelerate the formation of the catalyst structure;
after the reaction of the step 6), placing the solid e obtained by filtering into a high-temperature atmosphere furnace for calcining to obtain a target catalyst;
wherein, the proportion of the solution a in the step 1) is as follows: 1-5 parts of nickel salt compound; 95-99 parts of organic reagent;
the proportion of the solution b in the step 2) is as follows: 10-20 parts of manganese salt; 80-90 parts of water solvent;
the proportion of niobium salt in the step 3) is as follows: 10-40 parts of niobium salt; 60-90 parts of water solvent;
the niobium salt in the step 3) is at least one of niobium pentachloride, niobium tartrate, niobium oxalate and niobium citrate;
the reaction temperature in the step 4) is controlled to be 0-100 ℃; the dropping speed is 0.1-10 mL/min; the stirring speed is 20-300 rpm; the reaction time is 30 min-4 h after the dripping is completed;
in the step 5), the temperature is 120-200 ℃ and the time is 6-36 h;
the temperature rising rate of the treatment in the high-temperature atmosphere furnace in the step 6) is 1-10 ℃/min, the calcining temperature is 500-800 ℃ and the time is 3-10 h;
the gas used in the atmosphere furnace in the step 6) is H 2 /Ar，H 2 /N 2 ，H 2 Mixed gas of He, H thereof 2 The mass fraction of (2) is 1-10%.
2. The use according to claim 1, wherein the nickel salt compound in step 1) is at least one of nickel acetylacetonate, nickel acetate, nickel octoate and nickel benzoate.
3. The use according to claim 1, wherein the organic agent of step 1) is at least one of valeric acid, caproic acid, heptanoic acid, octanoic acid.
4. The use according to claim 1, wherein the manganese salt in step 2) is at least one of potassium permanganate, manganese nitrate, manganese acetate, manganese chloride, manganese sulfate.
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CN102850157A (en) * 2012-07-30 2013-01-02 华东理工大学 Novel technique for preparing long-chain alkane efficiently through multifunctional catalyst in one-step method
CN103977796A (en) * 2014-05-18 2014-08-13 华东理工大学 Catalyst used in preparation of long-chain alkane through catalytic hydrodeoxygenation of biomass
CN113663682A (en) * 2021-07-12 2021-11-19 西南林业大学 Non-supported mesoporous hydrodeoxygenation catalyst and preparation and application thereof

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