CN107088435A - A kind of preparation method of Ni Pt bimetallic catalysts - Google Patents
A kind of preparation method of Ni Pt bimetallic catalysts Download PDFInfo
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- CN107088435A CN107088435A CN201710282130.2A CN201710282130A CN107088435A CN 107088435 A CN107088435 A CN 107088435A CN 201710282130 A CN201710282130 A CN 201710282130A CN 107088435 A CN107088435 A CN 107088435A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000007598 dipping method Methods 0.000 claims abstract description 14
- PCLURTMBFDTLSK-UHFFFAOYSA-N nickel platinum Chemical compound [Ni].[Pt] PCLURTMBFDTLSK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 10
- 239000002808 molecular sieve Substances 0.000 claims abstract description 9
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000011148 porous material Substances 0.000 claims abstract description 5
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims abstract description 4
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical compound [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- 238000002803 maceration Methods 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 229910001453 nickel ion Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 238000002386 leaching Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000005984 hydrogenation reaction Methods 0.000 abstract description 12
- 229910000510 noble metal Inorganic materials 0.000 abstract description 5
- 235000014593 oils and fats Nutrition 0.000 abstract description 5
- 238000011160 research Methods 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 239000003863 metallic catalyst Substances 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000007210 heterogeneous catalysis Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- -1 platinum group olefin Chemical class 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/03—Catalysts comprising molecular sieves not having base-exchange properties
- B01J29/0308—Mesoporous materials not having base exchange properties, e.g. Si-MCM-41
- B01J29/0316—Mesoporous materials not having base exchange properties, e.g. Si-MCM-41 containing iron group metals, noble metals or copper
- B01J29/0333—Iron group metals or copper
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/63—Pore volume
- B01J35/635—0.5-1.0 ml/g
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/088—Decomposition of a metal salt
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/16—Reducing
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/12—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by hydrogenation
- C11C3/126—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by hydrogenation using catalysts based principally on other metals or derivates
-
- 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
- B01J2229/186—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Wood Science & Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Catalysts (AREA)
- Fats And Perfumes (AREA)
Abstract
The present invention provides a kind of preparation method of Ni Pt bimetallic catalysts, belongs to catalysis material technical field.The catalyst is to prepare the catalyst of Ni Pt/SBA 15 with dipping method, using the regular pore canal with even aperture distribution, bigger serface and the molecular sieves of pore volume SBA 15 as carrier, the hot conditions such as tolerable roasting and will not cave in causes the catalyst of load to be revealed, the pay(useful) load to metallic catalyst can be achieved, originated using nickel nitrate and platinum nitrate as active metal, prepare the catalyst of bimetallic Ni Pt/SBA 15.Ni Pt Catalyzed by Pt/M Bimetallic Nano better performances prepared by the present invention, compared with single noble metal catalyst, the catalyst noble metal platinum consumptions of Ni Pt/SBA 15 are few, reduce the financial cost of catalyst, simultaneously, the synergy of nickel platinum can improve catalyst service life, and certain Research foundation and theory value is provided for HYDROGENATION OF OILS AND FATS industrialized production.
Description
Technical field
The invention belongs to the preparation of hydrogenation catalyst and application field, specifically a kind of height of Content in Hydrogenated Edible Oils is urged
Change activity and the preparation method of stability Ni-Pt/SBA-15 hydrogenation catalysts.
Background technology
Most of heterogeneous catalysis that HYDROGENATION OF OILS AND FATS is industrially used at this stage be nickel, copper system class synthetic catalyst, this
The reaction temperature and Hydrogen Vapor Pressure that kind heterogeneous catalysis needs when being catalyzed HYDROGENATION OF OILS AND FATS are higher, and temperature is typically in 180-220
DEG C, trans-fatty acid content is generally up to 50% or so in hydrogenated products.In recent years, people are finding Development of Novel catalysis always
Agent, oil hydrogenation catalyst passes through the development of last 100 yearses, via the expensive gold of research steering of monometallic copper, nickel class traditional catalyst
Belong to the research of the effectively catalyst of reduction trans acids such as class catalyst, compound type catalyst.
The catalytic activity of metal platinum is most under metal surface area the same terms, in conventional platinum group olefin hydrogenation catalyst
Height, the good catalytic activity of metal platinum and mithridatism are highly important, but the economy of noble metal platinum for hydrogenation catalyst
Cost is too high, is that it is widely used in catalyst industry and brings difficulty.But by a small amount of noble metal platinum and conventional large catalyst
Nickel combines impregnated technique and is made after catalyst, compared with single noble metal catalyst, the expensive gold of Ni-Pt/SBA-15 catalyst
Belong to platinum consumption few, reduce the financial cost of catalyst.
Meanwhile, the synergy of nickel platinum can improve catalyst service life, reduce hydrogenated oil and fat TFAs contents, and
SBA-15 molecular sieves can make two kinds of catalyst high degree of dispersion as the skeleton of two kinds of metallic catalysts of load, increase catalyst
Specific surface area, improves the catalytic activity of catalyst.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of preparation method of Ni-Pt bimetallic catalysts.Existing nickel
Be that hydrogenation catalyst has service life shorter, the shortcomings of trans-fatty acid content is high in grease after hydrogenation, restriction HYDROGENATION OF OILS AND FATS industry
Development, thus the new excellent catalyst of research and development is needed badly, to reduce the content of TFAs in oil and fat product.This patent is to adsorb
The stronger mesoporous molecular sieve SBA-15 of ability prepares Ni-Pt/SBA-15 catalyst as catalyst carrier, it is found that bimetallic is urged
Agent architectural feature is better than monometallic ni-loaded catalyst, and catalyst service life is long.
It is as follows that the present invention prepares catalyst concrete operation step：
Step one：The preparation of catalyst：Using immersion reduction method, using SBA-15 as carrier, using nickel nitrate and platinum nitrate as
Active metal is originated, and prepares Ni-Pt/SBA-15 mesoporous supports catalyst；
Step 2：The phenetic analysis of catalyst：The load capacity of nickel is 17.3%, and the load capacity of platinum is 5.7%.Ni-Pt/
The specific surface area of SBA-15 catalyst is 426.82m2/ g, pore volume are 0.53cm3/ g and aperture are 3.5nm.
Embodiment：
Embodiment one：
It is an object of the invention to provide a kind of for Ni-Pt bimetallic catalysts of HYDROGENATION OF OILS AND FATS and preparation method thereof：
First, Ni-Pt/SBA-15 catalyst is prepared using dipping method, using SBA-15 molecular sieves as carrier, using nickel nitrate and platinum nitrate as
Active metal is originated, and prepares Ni-Pt/SBA-15 catalyst, basic by 0.20mol/L of nickel ion impregnation concentration, and configuration is originally
The maceration extract of required different platinum nickel mol ratios in method；Two and then dry SBA-15 molecular sieves are weighed in 500mL beakers
It is interior, the maceration extract of different platinum nickel mol ratios is slowly added in beaker, maceration extract volume is slightly larger than the apparent body of SBA-15 molecular sieves
Product, and control maceration extract to be certain pH；3rd, dipping is then stirred under certain dipping temperature, it is certain when reaching
After dip time, all substances in beaker are subjected to evaporated under reduced pressure, after 120 DEG C of oven for drying in 450 DEG C of Muffle furnaces
5h is calcined, is down to after room temperature and grinds to form uniformed powder, obtain catalyst n i-Pt/SBA-15；4th, the phenetic analysis of catalyst：Nickel
Load capacity be 17.3%, the load capacity of platinum is 5.7%.The specific surface area of Ni-Pt/SBA-15 catalyst is 426.82m2/g、
Pore volume is 0.53cm3/ g and aperture are 3.5nm.
Embodiment two：
Difference of the present embodiment from embodiment one is in step one that maceration extract platinum nickel mol ratio is 0.10-
0.30.Other steps are identical with embodiment one.
Embodiment three：
Difference of the present embodiment from embodiment one is in step one that maceration extract platinum nickel mol ratio is 0.10-
0.30, control dipping pH is respectively 5.0-7.0 in step 2.Other steps are identical with embodiment one.
Embodiment four：
Difference of the present embodiment from embodiment one is in step one that maceration extract platinum nickel mol ratio is 0.10-
0.30, in step 2 control dipping pH be respectively in 5.0-7.0, step 3 dipping temperature be 40-60min.Other steps and tool
Body embodiment one is identical.
Embodiment five：
Difference of the present embodiment from embodiment one is in step one that maceration extract platinum nickel mol ratio is 0.10-
0.30, in step 2 control dipping pH be respectively in 5.0-7.0, step 3 dipping temperature be 40-60min, dip time difference
For 3.0-5.0h.Other steps are identical with embodiment one.
Claims (5)
1. a kind of preparation method of Ni-Pt bimetallic catalysts, represents Ni-Pt/SBA-15, carrier is SBA-15 mesoporous moleculars
Sieve；Constituted characterized in that, catalyst is supported on SBA-15 mesopore molecular sieves by bimetallic nickel and platinum, the load capacity of nickel is
17.3%, the load capacity of platinum is that the specific surface area of 5.7%, Ni-Pt/SBA-15 catalyst is 426.82m2/ g, pore volume are
0.53cm3/ g and aperture are 3.5nm.
2. the preparation method of catalyst according to claim 1, the preparation process of catalyst is as follows：
Step one：Ni-Pt/SBA-15 catalyst is prepared using dipping method, using SBA-15 molecular sieves as carrier, with nickel nitrate and
Platinum nitrate is originated for active metal, Ni-Pt/SBA-15 catalyst is prepared, using nickel ion impregnation concentration as 0.20mol/L bases
The maceration extract of required different platinum nickel mol ratios in plinth, configuration this method；
Step 2：Then dry SBA-15 molecular sieves are weighed in beaker, the maceration extract of different platinum nickel mol ratios is slowly added
Enter in beaker, maceration extract volume is slightly larger than SBA-15 molecular sieve apparent volumes, and controls maceration extract to be certain pH；
Step 3：Dipping is then stirred under certain dipping temperature, after certain dip time is reached, by the institute in beaker
There is material to carry out evaporated under reduced pressure, calcine 5h in 450 DEG C of Muffle furnaces after 120 DEG C of oven for drying, be down to after room temperature and grind to form
Uniformed powder, obtains catalyst n i-Pt/SBA-15.
3. the preparation method of catalyst according to claim 2, it is characterised in that the leaching of different platinum nickel mol ratios in step one
Stain liquid, Pt/Ni mol ratios are 0.10-0.30.
4. the preparation method of catalyst according to claim 2, it is characterised in that control dipping pH is respectively in step 2
5.0-7.0。
5. the preparation method of catalyst according to claim 2, it is characterised in that dipping temperature is 40-60min in step 3,
Dip time is respectively 3.0-5.0h.
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| CN201710282130.2A CN107088435A (en) | 2017-04-26 | 2017-04-26 | A kind of preparation method of Ni Pt bimetallic catalysts |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144629A (en) * | 2017-12-08 | 2018-06-12 | 东北农业大学 | A kind of Ni-Ag/PVP-DB-171/SiO2/Fe3O4The preparation method of catalyst |
| CN117643897A (en) * | 2024-01-29 | 2024-03-05 | 成都岷山绿氢能源有限公司 | Selective semi-hydrogenation catalyst for N-heterocycle and preparation method thereof |
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| CN117643897A (en) * | 2024-01-29 | 2024-03-05 | 成都岷山绿氢能源有限公司 | Selective semi-hydrogenation catalyst for N-heterocycle and preparation method thereof |
| CN117643897B (en) * | 2024-01-29 | 2024-05-03 | 成都岷山绿氢能源有限公司 | Selective semi-hydrogenation catalyst for N-heterocycle and preparation method thereof |
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Application publication date: 20170825 |