CN109433211A - A kind of preparation method of octanoic acid hydrogenation deoxidation catalyst - Google Patents
A kind of preparation method of octanoic acid hydrogenation deoxidation catalyst Download PDFInfo
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- CN109433211A CN109433211A CN201811396553.8A CN201811396553A CN109433211A CN 109433211 A CN109433211 A CN 109433211A CN 201811396553 A CN201811396553 A CN 201811396553A CN 109433211 A CN109433211 A CN 109433211A
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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
- B01J23/74—Iron group metals
- B01J23/755—Nickel
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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
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/883—Molybdenum and nickel
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- 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
- C07C1/2078—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 by a transformation in which at least one -C(=O)-O- moiety is eliminated
Abstract
The present invention provides a kind of preparation method of sad hydrogenation deoxidation catalyst, obtains the foamed material in macropore range that is, by the way that inorganic salts pore forming agent is added the preparation method is that preparing inorganic salts auxiliary synthesising foam material (S-MCF) carrier first.Then using the mesostructured cellular foam as carrier, using excessive infusion process supported bi-metallic on the material.There is high specific surface area using catalyst prepared by the present invention, carrier duct stable structure, there are bigger pore-size, pore volume and three dimensional pore structures simultaneously, on the one hand the load capacity and dispersion degree of metal can be improved, on the other hand be conducive to improve reactants and products in the diffusion velocity in catalyst duct, the carbon distribution of catalyst is reduced, obtains higher selectivity while improving sad hydrogenation deoxidation reactivity to realize, and increase the stability of catalyst.
Description
Technical field
The present invention relates to a kind of sad hydrogenation deoxidation technical fields.More particularly to a kind of carrier loaded gold of perforated foams
Belong to preparation and its octanoic acid hydrogenation deoxidation performance study of oxide catalyst.
Background technique
The bio oil of biomass resource production is a kind of promising renewable energy.In addition, the biology of biomass derived
Oil has energy density more higher than biomass material.But bio oil is due to its high viscosity and a large amount of nitrogen, oxygen and sulphur without
It can be directly used as liquid transportation fuels.Contain the oxygen of high-content especially from the bio oil of biomass, content is up to 35-
40%, significantly larger than petroleum.The bio oil of elevated oxygen level is the complex mixture of multiple compounds, has lower vapour pressure,
Lower high heating value (HHV), higher water-soluble and higher reactivity.Organic acid and aldehydes for containing in bio oil etc. can increase
The corrosivity and acidity for adding bio oil improve the performance of bio oil therefore, it is desirable to reduce its content by certain method.
It can be divided by the method for oil and fat preparation fuel oil and be divided into the method that is directly used in mixed way, microemulsion method, high temperature pyrolysis
5 kinds of methods such as method, ester-interchange method, catalytic cracking (cracking) method and catalytic hydrogenation method, wherein direct mixing method and microemulsion are owned by France
In physical method, high temperature pyrolytic cracking, ester-interchange method, catalytic cracking (cracking) method and catalytic hydrogenation are owned by France in chemical method.Use object
Logos production product in use easy carbon deposit and also pollution lubricating oil；The major product of high temperature pyrolytic cracking is gasoline,
Diesel oil is its byproduct, and production process energy consumption is higher；The method of Production of Biodiesel Via Transesterification Method, which has been applied, to be compared
Maturation, but there are oxygenatedchemicals in product, oil property is poor；Thermal cracking, catalytic cracking method can remove in grease
Oxygen atom, but the gaseous hydrocarbon comprising a large amount of gasoline component, short chain in product, diesel yield are lower；And the side of hydrogenation deoxidation
Method is also able to maintain the high yield of diesel oil while removing wherein oxygen atom, recent years researchers to this quadrat method into
It has gone and has compared in-depth study.
Currently, the method for the hydrogenation deoxidation liquid fuel was prepared about grease, generally selects long-chain carbon fatty acid (C16-
C22) it is used as model compound.But the physical property of the fatty acid of different carbon chain lengths is different, such as acid, polarity and sky
Between steric hindrance etc..These different physical properties can also make the performance of its required catalyst different.Therefore, Medium chain fatty is studied
Acid, such as the hydrogenation deoxidation performance of octanoic acid have important theory and application value.
The hydrogenation deoxidation of octanoic acid can be carried out by decarboxylation, decarbonylation and direct hydrogenation deoxidation.Decarboxylic reaction generates normal heptane
And carbon dioxide:
C7H15COOH→C7H16+CO2 (1)
Decarbonylation reaction generates 1- heptene, CO and H2O:
C7H15COOH→C7H14+CO+H2O (2)
Subsequent 1- heptene catalytic hydrogenation generates normal heptane:
Direct hydrogenation deoxygenation:
C7H15COOH+H2→C8H8+H2O (4)
Compared with decarboxylation and decarbonylation, sad direct hydrogenation deoxidation process shows more Atom economies, passes through life
Produce H2O rather than CO2Oxygen is eliminated, keeps it more more environmentally friendly than the above two, and cause more to pay close attention to.
As typical reaction, the product of direct hydrogenation deoxygenation technique depends on the catalytic selectivity of catalyst.Mesh
The catalyst system that there are mainly three types of preceding reports for organic acid hydrogenation deoxidation: (1) CoMo or NiMo sulfide/supported catalyst
Agent: (2) Pd- or Pt- carried catalyst；(3) the cheap transition-metal catalyst loaded.However, since sulphur leaches and your gold
It is high to belong to price, first two catalyst system is restricted in practical applications.Load cheap transition-metal catalyst (for example,
Ni, Mo, Co, Fe etc.) have the advantages that high catalytic activity and reduces hydrogenation process.Laszlo B (Laszlo B, Gyoergy O,
Hanna S.et a1.Catalytic hydroconversion of tricaprylin and caprylic acid as
model reaction for biofuel production from triglycerides[J].Applied
CatalysisA:General, 2010,374 (1-2): 158-169) it has studied in Ni/Mo/ β-A12O3It is sad on catalyst to urge
Change hydro-conversion, obtains 70% best sad conversion ratio, C8The yield of alkane is 30%, but this catalytic hydroconversion
Rate is not high.Chen H (Chen H, Wu YL, Qi ST, et al.Deoxygenation of octanoic acid
catalyzed by hollow spherical Ni/ZrO2[J] .Applied Catalysis A:General, 2017,
529:79-90) etc. have studied in hollow sphere Ni/ZrO2The hydrogenation deoxidation of upper octanoic acid, reaction path are mainly decarboxylic reaction, are produced
Object is largely heptane, does not meet Atom economy.Octanoic acid studies medium chain fatty acid hydrogenation deoxidation as model compound at present
Report it is few, and carrier is mostly conventional oxide carrier, and reaction conversion ratio and the not high or reaction process of selectivity are de-
Carboxylic decarbonylation base, does not have Atom economy.
Therefore needing to find has the catalyst of highly selective and high activity green to study sad hydrogenation deoxidation reaction.
The advantages that mesoporous silica molecular sieve has surface area big, and pore volume is big, and aperture is controllable is often used as preparing catalyst load
Body.But the size in aperture is controlled due to use expensive organic pore forming agent, and have the shortcomings that hydrothermal stability is poor
So that using being restricted.It is reported that inorganic salts have strong influence to the soft template synthesis of Metaporous silicon dioxide material.
(Dongyuan Z, Jinyu S, the Quanzhi L et al.Morphological Control of such as Dongyuan Z
Highly Ordered Mesoporous Silica SBA-15 [J] .Chemistry ofMaterials, 2000,12 (2):
275-279.) SBA-15 with different shape is prepared for inorganic salts.(the Ryong R, Shinae such as Ryong R
J.Improvement of hydrothermal stability of MCM-41 using of salt effects
During the crystallization process [J] .Physical Chemistry, 1997,101 (3): 317-
320.) it reports and can change the hydrothermal stability of MCM-41 by the way that inorganic salts are added.
Summary of the invention
Technical problem: in order to solve the problems, such as that sad hydrogenation deoxidation catalyst activity and selectivity is not high in the prior art,
The present invention provides a kind of preparation method for being different from prior art perforated foams metal oxide supporting catalyst.This method
The catalyst of preparation is used in sad hydrogenation deoxidation reaction, has good reactivity and higher selectivity.
Technical solution: a kind of preparation method of sad hydrogenation deoxidation catalyst of the invention is prepared according to the following steps:
Step 1: the preparation of perforated foams S-MCF
Triblock copolymer polyethers P123 is weighed, is add to deionized water, and acid and inorganic salts are added thereto, in room
Temperature is lower to stir 4-6h, until obtaining uniform solution, is then vigorously stirred at 48-60 DEG C；In the case where being vigorously stirred, add
Enter silica precursor solution and deionized water, occurring white precipitate after a few minutes, temperature drops to 40-45 DEG C simultaneously；Continue
It is warming up to 48-60 DEG C and stirs 24-48h；Gained mixture is added in hydrothermal synthesis kettle at 100-150 DEG C of progress hydro-thermal
Reason, is filtered, washed, is dried overnight；Powder after being dried overnight is roasted to 6-10h at 550-600 DEG C and removes P123 template,
Perforated foams S-MCF can be obtained；
Step 2: infusion process supported bi-metallic
The perforated foams S-MCF of step 1 preparation is weighed as carrier, and metal salt solution is added, gold contained therein
Category has Ni, Cu, Co, Ag, Fe, Mo；It is stirred overnight under the conditions of existing for the excessive deionized water；Then gained mixed solution is existed
40-60 DEG C rotates, and is dried overnight at 80-100 DEG C, roasts 3-5h at 500-550 DEG C.
Wherein,
Acid described in step 1 is one or more of hydrochloric acid, sulfuric acid or acetic acid.
Inorganic salts described in step 1 are one or more of potassium chloride, sodium chloride or calcium chloride.
Silica precursor solution described in step 1 is one or both of tetraethyl orthosilicate or sodium metasilicate.
P123 template, acid, inorganic salts, silica precursor, deionized water described in step 1, mass ratio P123
Template: acid: inorganic salts: silica precursor: deionized water=5:2.2:0.5~5:5:200.
Metal salt described in step 2 is appointing in nickel nitrate, copper nitrate, cobalt nitrate, silver nitrate, ferric nitrate or ammonium molybdate
Two kinds of meaning.
The method that the present invention carries out deoxidation using the sad hydrogenation deoxidation catalyst of preparation, comprising the following steps:
Step 1: by the sad hydrogenation deoxidation catalyst H2It is put into autoclave after reduction, octanoic acid and oneself is added
Alkane is uniformly mixed, envelope kettle, and wherein the quality of hexane is 1-30 times of octanoic acid, and the quality of catalyst is 0.1-1 times of octanoic acid；
Step 2: using N2The air in autoclave is replaced, then uses H2Replace the N in autoclave2, it is filled with 1-3MPa's later
H2, 4-10h is reacted at 240-300 DEG C.
The utility model has the advantages that the hydrogenation deoxidation catalyst prepared using this method, carrier is multi-stage porous foamed material, relatively rich
Grade duct can be improved the diffusion velocity of reactant and product in the catalyst, and be controlled by the amount of control addition inorganic salts
The size in drilling road can increase the selectivity of target product while improving conversion ratio.
Specific embodiment
Below by embodiment come the present invention is further elaborated, it should be noted that following instance be merely to illustrate and
It is not used in and limits the scope of the invention.All technical solutions obtained by the way of equivalent substitution or equivalent transformation, are in
Within protection scope of the present invention.
Embodiment 1:
1) 5g P123,5g KCl, 2.2mL acetic acid and 100mL water is taken to be sufficiently mixed stirring, after obtaining homogeneous solution, 60
1h is stirred at DEG C, the sodium metasilicate for using the water-reducible 8ml of 100mL is added, temperature can drop to 40 DEG C at this time.White is formed after a few minutes
Precipitating, is continuously heating to 60 DEG C, and stir 20h.Hydro-thermal process for 24 hours, obtained sediment is filtered and is used in combination at 80 DEG C
Except desalting, to obtain powder, for 24 hours, roasting obtains S-MCF foamed material at 550 DEG C for drying at 80 DEG C for deionized water washing.
2) solid powder obtained in step 1) is weighed into 3g and 0.743g nickel nitrate and 0.741g cobalt nitrate excessive
It is sufficiently mixed in deionized water, 12h is stirred at room temperature, roast 4h through 550 DEG C of Muffle furnaces.
3) catalyst after roasting in step 2) is weighed into 1g, under an atmosphere of hydrogen, flow velocity 60-80min/mL, 450 DEG C
3.3h is restored, bimetallic catalyst is obtained.
The catalyst for taking the 1g above method to prepare is put into the autoclave of 100mL, and 1g octanoic acid and 26g hexane, mixing is added
Uniformly, kettle is sealed, N is used2Air 3 times in gas displacement kettle, then use H2Replace N in kettle23 times, it is filled with the H of 3MPa later2, open stirring
600rpm is heated to 270 DEG C of reaction 7h.Gained feed liquid is gone out catalyst, is formed with gas chromatographic analysis product, sad conversion ratio
80%, octane selectivity 70%.
Embodiment 2:
1) 5g P123,5g KCl, 2.2mL acetic acid and 100mL water is taken to be sufficiently mixed stirring, after obtaining homogeneous solution, 60
1h is stirred at DEG C, the sodium metasilicate for using the water-reducible 8ml of 100mL is added, temperature can drop to 40 DEG C at this time.White is formed after a few minutes
Precipitating, is continuously heating to 60 DEG C, and stir 20h.Hydro-thermal process for 24 hours, obtained sediment is filtered and is used in combination at 80 DEG C
Except desalting, to obtain powder, for 24 hours, roasting obtains S-MCF foamed material at 550 DEG C for drying at 80 DEG C for deionized water washing.
2) solid powder obtained in step 1) 3g and 0.743g nickel nitrate and 0.57g copper nitrate is weighed to go excessive
It is sufficiently mixed in ionized water, 12h is stirred at room temperature, roast 4h through 550 DEG C of Muffle furnaces.
3) catalyst after roasting in step 2) is weighed into 1g, under an atmosphere of hydrogen, flow velocity 60-80min/mL, 450 DEG C
3.3h is restored, bimetallic catalyst is obtained.
The catalyst for taking the 1g above method to prepare is put into the autoclave of 100mL, and 1g octanoic acid and 26g hexane, mixing is added
Uniformly, kettle is sealed, N is used2Air 3 times in gas displacement kettle, then use H2Replace N in kettle23 times, it is filled with the H of 3MPa later2, open stirring
600rpm is heated to 270 DEG C of reaction 7h.Gained feed liquid is gone out catalyst, is formed with gas chromatographic analysis product, sad conversion ratio
78%, octane selectivity 62%.
Embodiment 3:
1) 5g P123,5g KCl, 2.2mL acetic acid and 100mL water is taken to be sufficiently mixed stirring, after obtaining homogeneous solution, 60
1h is stirred at DEG C, the sodium metasilicate for using the water-reducible 8ml of 100mL is added, temperature can drop to 40 DEG C at this time.White is formed after a few minutes
Precipitating, is continuously heating to 60 DEG C, and stir 20h.Hydro-thermal process for 24 hours, obtained sediment is filtered and is used in combination at 80 DEG C
Except desalting, to obtain powder, for 24 hours, roasting obtains S-MCF foamed material at 550 DEG C for drying at 80 DEG C for deionized water washing.
2) solid powder obtained in step 1) is weighed into 3g and 0.743g nickel nitrate and 1.932g ammonium molybdate excessive
It is sufficiently mixed in deionized water, 12h is stirred at room temperature, roast 4h through 550 DEG C of Muffle furnaces.
3) catalyst after roasting in step 2) is weighed into 1g, under an atmosphere of hydrogen, flow velocity 60-80min/mL, 450 DEG C
3.3h is restored, bimetallic catalyst is obtained.
The catalyst for taking the 1g above method to prepare is put into the autoclave of 100mL, and 1g octanoic acid and 26g hexane, mixing is added
Uniformly, kettle is sealed, N is used2Air 3 times in gas displacement kettle, then use H2Replace N in kettle23 times, it is filled with the H of 3MPa later2, open stirring
600rpm is heated to 270 DEG C of reaction 7h.Gained feed liquid is gone out catalyst, is formed with gas chromatographic analysis product, sad conversion ratio
90%, octane selectivity 76%.
Embodiment 4:
1) 10g P123,5g KCl, 2.2mL acetic acid and 100mL water is taken to be sufficiently mixed stirring, after obtaining homogeneous solution,
1h is stirred at 60 DEG C, the sodium metasilicate for using the water-reducible 8ml of 100mL is added, temperature can drop to 40 DEG C at this time.It is formed after a few minutes white
Color precipitating, is continuously heating to 60 DEG C, and stir 20h.For 24 hours, obtained sediment is filtered simultaneously for hydro-thermal process at 80 DEG C
It is washed with deionized except desalting, to obtain powder drying at 80 DEG C and for 24 hours, be roasted at 550 DEG C and obtain S-MCF foam material
Material.
2) solid powder obtained in step 1) is weighed into 3g and 0.743g nickel nitrate and 1.932g ammonium molybdate excessive
It is sufficiently mixed in deionized water, 12h is stirred at room temperature, roast 4h through 550 DEG C of Muffle furnaces.
3) catalyst after roasting in step 2) is weighed into 1g, under an atmosphere of hydrogen, flow velocity 60-80min/mL, 450 DEG C
3.3h is restored, bimetallic catalyst is obtained.
The catalyst for taking the 1g above method to prepare is put into the autoclave of 100mL, and 1g octanoic acid and 26g hexane, mixing is added
Uniformly, kettle is sealed, N is used2Air 3 times in gas displacement kettle, then use H2Replace N in kettle23 times, it is filled with the H of 3MPa later2, open stirring
600rpm is heated to 270 DEG C of reaction 7h.Gained feed liquid is gone out catalyst, is formed with gas chromatographic analysis product, sad conversion ratio
87%, octane selectivity 69%.
Embodiment 5:
1) 15g P123,5g KCl, 2.2mL acetic acid and 100mL water is taken to be sufficiently mixed stirring, after obtaining homogeneous solution,
1h is stirred at 60 DEG C, the sodium metasilicate for using the water-reducible 8ml of 100mL is added, temperature can drop to 40 DEG C at this time.It is formed after a few minutes white
Color precipitating, is continuously heating to 60 DEG C, and stir 20h.For 24 hours, obtained sediment is filtered simultaneously for hydro-thermal process at 80 DEG C
It is washed with deionized except desalting, to obtain powder drying at 80 DEG C and for 24 hours, be roasted at 550 DEG C and obtain S-MCF foam material
Material.
2) solid powder obtained in step 1) is weighed into 3g and 0.743g nickel nitrate and 1.932g ammonium molybdate excessive
It is sufficiently mixed in deionized water, 12h is stirred at room temperature, roast 4h through 550 DEG C of Muffle furnaces.
3) catalyst after roasting in step 2) is weighed into 1g, under an atmosphere of hydrogen, flow velocity 60-80min/mL, 450 DEG C
3.3h is restored, bimetallic catalyst is obtained.
The catalyst for taking the 1g above method to prepare is put into the autoclave of 100mL, and 1g octanoic acid and 26g hexane, mixing is added
Uniformly, kettle is sealed, N is used2Air 3 times in gas displacement kettle, then use H2Replace N in kettle23 times, it is filled with the H of 3MPa later2, open stirring
600rpm is heated to 270 DEG C of reaction 7h.Gained feed liquid is gone out catalyst, is formed with gas chromatographic analysis product, sad conversion ratio
63%, octane selectivity 56%.
Claims (7)
1. a kind of preparation method of octanoic acid hydrogenation deoxidation catalyst, which is characterized in that the catalyst is prepared according to the following steps:
Step 1: the preparation of perforated foams S-MCF
Triblock copolymer polyethers P123 is weighed, is add to deionized water, and acid and inorganic salts are added thereto, at room temperature
4-6h is stirred, until obtaining uniform solution, is then vigorously stirred at 48-60 DEG C；In the case where being vigorously stirred, it is added two
Siliconoxide precursor solution and deionized water, occurring white precipitate after a few minutes, temperature drops to 40-45 DEG C simultaneously；Continue to heat up
To 48-60 DEG C and stir 24-48h；Gained mixture is added in hydrothermal synthesis kettle in 100-150 DEG C of progress hydro-thermal process, mistake
It filters, wash, be dried overnight；Powder after being dried overnight is roasted to 6-10h at 550-600 DEG C and removes P123 template
Obtain perforated foams S-MCF；
Step 2: infusion process supported bi-metallic
The perforated foams S-MCF of step 1 preparation is weighed as carrier, and metal salt solution is added, metal contained therein has
Ni,Cu,Co,Ag,Fe,Mo；It is stirred overnight under the conditions of existing for the excessive deionized water；Then by gained mixed solution in 40-
60 DEG C rotate, and are dried overnight at 80-100 DEG C, roast 3-5h at 500-550 DEG C.
2. the preparation method of octanoic acid hydrogenation deoxidation catalyst described in accordance with the claim 1, which is characterized in that described in step 1
Acid is one or more of hydrochloric acid, sulfuric acid or acetic acid.
3. the preparation method of octanoic acid hydrogenation deoxidation catalyst described in accordance with the claim 1, which is characterized in that described in step 1
Inorganic salts are one or more of potassium chloride, sodium chloride or calcium chloride.
4. the preparation method of octanoic acid hydrogenation deoxidation catalyst described in accordance with the claim 1, which is characterized in that described in step 1
Silica precursor solution is one or both of tetraethyl orthosilicate or sodium metasilicate.
5. the preparation method of octanoic acid hydrogenation deoxidation catalyst described in accordance with the claim 1, which is characterized in that described in step 1
P123 template, acid, inorganic salts, silica precursor, deionized water, mass ratio are P123 template: acid: inorganic salts: two
Siliconoxide precursor: deionized water=5:2.2:0.5~5:5:200.
6. the preparation method of octanoic acid hydrogenation deoxidation catalyst described in accordance with the claim 1, which is characterized in that described in step 2
Metal salt is any two kinds in nickel nitrate, copper nitrate, cobalt nitrate, silver nitrate, ferric nitrate or ammonium molybdate.
7. a kind of method that the sad hydrogenation deoxidation catalyst prepared using claim 1 carries out deoxidation, which is characterized in that including
Following steps:
Step 1: by the sad hydrogenation deoxidation catalyst H2It is put into autoclave after reduction, octanoic acid and hexane is added, mixed
Conjunction is uniform, seals kettle, and wherein the quality of hexane is 1-30 times of octanoic acid, and the quality of catalyst is sad 0.1-1 times；
Step 2: using N2The air in autoclave is replaced, then uses H2Replace the N in autoclave2, it is filled with the H of 1-3MPa later2,
4-10h is reacted at 240-300 DEG C.
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| CN112717939A (en) * | 2021-01-06 | 2021-04-30 | 中国船舶重工集团公司第七一九研究所 | Emulsion Ni/ZrO for catalytic hydrogenation upgrading of caprylic acid2Process for preparing catalyst |
| CN112718010A (en) * | 2021-01-06 | 2021-04-30 | 中国船舶重工集团公司第七一九研究所 | Preparation method of Pd/MOF catalyst for catalytic hydrogenation upgrading of caprylic acid |
| CN115739096A (en) * | 2022-12-07 | 2023-03-07 | 中山大学 | Carbon supported metal catalyst, and preparation method and application thereof |
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| CN110227536A (en) * | 2019-05-28 | 2019-09-13 | 东南大学 | It is a kind of for the NiMoW/MCM-41 composite catalyst of sad hydrogenation deoxidation and its preparation and application |
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| CN115739096A (en) * | 2022-12-07 | 2023-03-07 | 中山大学 | Carbon supported metal catalyst, and preparation method and application thereof |
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