CN117466246A - Cracking agent for hydrogen production and preparation method thereof - Google Patents
Cracking agent for hydrogen production and preparation method thereof Download PDFInfo
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- CN117466246A CN117466246A CN202311823668.1A CN202311823668A CN117466246A CN 117466246 A CN117466246 A CN 117466246A CN 202311823668 A CN202311823668 A CN 202311823668A CN 117466246 A CN117466246 A CN 117466246A
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- hydrogen production
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 70
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 70
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 53
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 40
- 238000005336 cracking Methods 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 89
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 37
- 239000000956 alloy Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000000853 adhesive Substances 0.000 claims abstract description 23
- 230000001070 adhesive effect Effects 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000227 grinding Methods 0.000 claims description 44
- 239000011159 matrix material Substances 0.000 claims description 28
- 238000007873 sieving Methods 0.000 claims description 21
- 239000003381 stabilizer Substances 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 21
- 239000012300 argon atmosphere Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 15
- 239000011812 mixed powder Substances 0.000 claims description 14
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 12
- 239000012752 auxiliary agent Substances 0.000 claims description 12
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 claims description 7
- 229910052733 gallium Inorganic materials 0.000 claims description 7
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052700 potassium Inorganic materials 0.000 claims description 7
- 239000011591 potassium Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 239000011701 zinc Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052787 antimony Inorganic materials 0.000 claims description 6
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 6
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 239000001103 potassium chloride Substances 0.000 claims description 6
- 235000011164 potassium chloride Nutrition 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 claims description 5
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims description 5
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000011780 sodium chloride Substances 0.000 claims description 5
- 239000001119 stannous chloride Substances 0.000 claims description 5
- 235000011150 stannous chloride Nutrition 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 229910005102 Ni3Sn Inorganic materials 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 4
- 150000002739 metals Chemical class 0.000 abstract description 4
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 3
- 238000005275 alloying Methods 0.000 abstract description 3
- 239000008358 core component Substances 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000005496 eutectics Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 229930195733 hydrocarbon Natural products 0.000 abstract description 3
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 3
- 229910000765 intermetallic Inorganic materials 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 3
- 239000011800 void material Substances 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/08—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents with metals
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention relates to the technical field of hydrogen production, and discloses a cracking agent for hydrogen production, which comprises the following raw materials: the catalyst carrier is formed by mixing a catalyst carrier main material and a catalyst carrier auxiliary material. According to the cracking agent for hydrogen production and the preparation method thereof, an oxide film formed in the hydrogen production process can be reduced, the contact area is increased through the adhesive, the reaction can be stable and controllable, the hydrogen production proportion is finally greatly improved, common metals such as aluminum and the like and alloys are adopted as core components, and the preparation is convenient and the cost is low; the oxidation film on the surface layer of the metal aluminum is differentiated through alloying, or eutectic or intermetallic compound is formed, and the micro corrosion battery is formed when meeting water, so that hydrogen is continuously generated; the prepared catalyst alloy particles have the advantages of nano size, large void ratio, favorable adsorption of hydrocarbon and precipitation of gas products due to the collocation of the catalyst carrier and the catalyst, and good mechanical stability of the alloy.
Description
Technical Field
The invention relates to the technical field of hydrogen production, in particular to a cracking agent for hydrogen production and a preparation method thereof.
Background
With the rapid development of human society, disposable fossil energy is consumed in a large amount, so that energy shortage and environmental pollution become major problems facing the world today, and hydrogen energy is one of important new energy sources satisfying sustainable development and environmental friendliness of human society. In the research of various new energy sources, the hydrogen has become the first choice of researchers in a completely clean combustion mode and the advantage of being renewable. Hydrogen is an ideal new energy source, and has the following characteristics: 1. the heat release efficiency of the hydrogen is high, and the heat release of the hydrogen can be 16 ten thousand joules when 1 gram of the hydrogen is combusted, which is about 3 times of the heat release when 1 gram of the gasoline is combusted and 1.6 times of the heat release when 1 gram of the natural gas is combusted. 2. The raw material of the hydrogen is mainly water, and 2 hydrogen atoms exist in 1 water molecule; and the water accounting for 71% of the earth surface is water, so the resources are very rich. 3. In the combustion process of hydrogen, besides releasing huge energy, the combustion product only has water, has no pollution emission and does not cause environmental pollution, so the hydrogen is also called as "clean energy". 4. Hydrogen is extremely versatile in its use, not only to burn to generate heat, but also to provide clean electrical energy through fuel cells;
as a strategic emerging industry, the hydrogen energy industry has a long chain, comprises a plurality of links of hydrogen production, hydrogen storage, hydrogen transportation, hydrogenation, hydrogen utilization and the like, each link has the own product development direction, the links are mutually buckled, and each link on the industry chain is quite available. Hydrogen production paths are various, but different paths have great difference in hydrogen production cost due to different raw material prices. In the hydrogen production technology path, the chemical process of producing hydrogen by reacting metal with water is a green hydrogen production process. However, there are many problems in the reaction of a single metal with water, and some single metals have high reactivity, but because an oxide film is formed on the surface during the reaction process, the continuous reaction of the metal with water is hindered, so in the research of the reaction of the metal with water, the focus is mainly on how to remove the oxide on the surface and inhibit the formation of the oxide film, thereby shortening the time for inducing the reaction, accelerating the reaction, and improving the conversion rate.
Accordingly, the present invention provides a cracking agent for hydrogen production and a preparation method thereof to solve the above-mentioned problems.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a cracking agent for hydrogen production and a preparation method thereof, which have the following advantages and solve the problems.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: a cracking agent for hydrogen production, which comprises the following raw materials: alloy matrix, catalyst carrier, catalyst, adhesive and assistant.
Preferably, the catalyst carrier is formed by mixing a main material of the catalyst carrier and auxiliary materials of the catalyst carrier.
Preferably, the alloy matrix comprises the following raw materials in parts by weight: 60-70 parts of aluminum, 10-15 parts of zinc, 5-15 parts of manganese, 1-5 parts of gallium, 10-20 parts of ferrocene and 4-12 parts of potassium, and the catalyst is Ni3Sn or Ni3 Fe.
Preferably, the main materials of the catalyst carrier are two or more of sodium chloride, molybdenum disulfide, aluminum oxide, silicon dioxide and titanium dioxide;
the catalyst carrier auxiliary material is one or more of calcium oxide and barium oxide.
Preferably, the adhesive comprises one or more of water glass and paste, and the auxiliary agent comprises argon atmosphere, stabilizer and grinding aid; the stabilizer consists of one or more of organic tin, organic antimony and organic rare earth, and the grinding aid consists of one or more of potassium chloride and stannous chloride.
The invention aims to solve the other technical problem that the preparation method of the cracking agent for hydrogen production comprises the following steps:
step one: weighing raw materials with proper quality according to the proportion, and mixing into an alloy matrix and a catalyst carrier;
step two: mixing the mixed alloy matrix and the catalyst carrier according to a proportion, and then putting the mixture into a grinder for mechanical grinding;
step three: sieving the ground powder by vibration, wherein the specification of a filter screen is 100-300 meshes;
step four: then adding the catalyst into the mixed powder for fully stirring, adding the adhesive for 2-3 times in the stirring process, and keeping the stirring time for 0.5-1h;
step five: placing the mixed powder in the fourth step into a crucible for sintering;
step six: taking out the calcined material in the fifth step, grinding and sieving, wherein the sieving specification is 200-300 meshes, and obtaining the cracking agent for hydrogen production.
Preferably, the grinding machine is kept sealed and argon gas atmosphere is added, and grinding aid and stabilizer are simultaneously put in, and grinding is continued for 0.2-1h.
Preferably, in the fifth step, the crucible is calcined in an argon atmosphere, and the calcining temperature is controlled to be 1000-1600 ℃.
(III) beneficial effects
Compared with the prior art, the invention provides the cracking agent for hydrogen production and the preparation method thereof, and the cracking agent has the following beneficial effects:
1. the cracking agent for hydrogen production can reduce the oxide film formed in the hydrogen production process, increases the contact area through the adhesive, can ensure that the reaction is stable and controllable, and finally greatly improves the hydrogen production proportion, and adopts common metals such as aluminum and the like and alloys as core components, thereby being convenient to prepare and low in cost.
2. The cracking agent for hydrogen production can differentiate an oxide film on the surface layer of metal aluminum through alloying, or form eutectic or intermetallic compounds, and form a micro corrosion battery when meeting water, so that hydrogen is continuously generated; the prepared catalyst alloy particles have the advantages of nano size, large void ratio, favorable adsorption of hydrocarbon and precipitation of gas products due to the collocation of the catalyst carrier and the catalyst, and good mechanical stability of the alloy.
3. The preparation method of the cracking agent for hydrogen production has the advantages of simple and convenient process, easy control of operation and contribution to large-scale production.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, 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.
Embodiment one:
a cracking agent for hydrogen production, which comprises the following raw materials: alloy matrix, catalyst carrier, catalyst, adhesive and auxiliary agent;
the catalyst carrier is formed by mixing a main material of the catalyst carrier and auxiliary materials of the catalyst carrier;
the alloy matrix comprises the following raw materials in parts by weight: 70 parts of aluminum, 15 parts of zinc, 15 parts of manganese, 5 parts of gallium, 20 parts of ferrocene and 12 parts of potassium, and the catalyst is Ni3 Fe;
the main materials of the catalyst carrier are sodium chloride, molybdenum disulfide, aluminum oxide, silicon dioxide and titanium dioxide;
the catalyst carrier auxiliary materials are calcium oxide and barium oxide; the adhesive comprises paste, and the auxiliary agent comprises argon atmosphere, a stabilizer and a grinding aid; the stabilizer consists of organic tin, organic antimony and organic rare earth, and the grinding aid consists of potassium chloride and stannous chloride.
A preparation method of a cracking agent for hydrogen production,
the method comprises the following steps:
step one: weighing raw materials with proper quality according to the proportion, and mixing into an alloy matrix and a catalyst carrier;
step two: mixing the mixed alloy matrix and the catalyst carrier according to a proportion, then placing the mixture into a grinder for mechanical grinding, keeping a seal in the grinder, adding argon atmosphere, and simultaneously placing a grinding aid and a stabilizer for continuous grinding for 1h;
step three: sieving the ground powder by vibration, wherein the specification of a filter screen is 300 meshes;
step four: then adding the catalyst into the mixed powder for fully stirring, adding the adhesive for 3 times in the stirring process, and keeping the stirring time for 1h;
step five: placing the mixed powder in the fourth step into a crucible for sintering, and calcining the crucible in an argon atmosphere, wherein the calcining temperature is controlled at 1600 ℃;
step six: taking out the calcined material in the fifth step, grinding and sieving, wherein the sieving specification is 300 meshes, and obtaining the cracking agent for hydrogen production.
Embodiment two:
a cracking agent for hydrogen production, which comprises the following raw materials: alloy matrix, catalyst carrier, catalyst, adhesive and auxiliary agent;
the catalyst carrier is formed by mixing a main material of the catalyst carrier and auxiliary materials of the catalyst carrier;
the alloy matrix comprises the following raw materials in parts by weight: 66 parts of aluminum, 12 parts of zinc, 6 parts of manganese, 2 parts of gallium, 11 parts of ferrocene and 5 parts of potassium, and the catalyst is Ni3 Sn;
the main material of the catalyst carrier is silicon dioxide and titanium dioxide;
the auxiliary material of the catalyst carrier is calcium oxide; the adhesive comprises water glass, and the auxiliary agent comprises argon atmosphere, a stabilizer and a grinding aid; the stabilizer consists of organic rare earth, and the grinding aid consists of potassium chloride.
A preparation method of a cracking agent for hydrogen production,
the method comprises the following steps:
step one: weighing raw materials with proper quality according to the proportion, and mixing into an alloy matrix and a catalyst carrier;
step two: mixing the mixed alloy matrix and the catalyst carrier according to a proportion, then placing the mixture into a grinder for mechanical grinding, keeping a seal in the grinder, adding argon atmosphere, and simultaneously placing a grinding aid and a stabilizer for continuous grinding for 1h;
step three: sieving the ground powder by vibration, wherein the specification of a filter screen is 100 meshes;
step four: then adding the catalyst into the mixed powder for fully stirring, adding the adhesive for 3 times in the stirring process, and keeping the stirring time for 0.5h;
step five: placing the mixed powder in the fourth step into a crucible for sintering, and calcining the crucible in an argon atmosphere, wherein the calcining temperature is controlled at 1000 ℃;
step six: taking out the calcined material in the fifth step, grinding and sieving, wherein the sieving specification is 300 meshes, and obtaining the cracking agent for hydrogen production.
Embodiment III:
a cracking agent for hydrogen production, which comprises the following raw materials: alloy matrix, catalyst carrier, catalyst, adhesive and auxiliary agent;
the catalyst carrier is formed by mixing a main material of the catalyst carrier and auxiliary materials of the catalyst carrier;
the alloy matrix comprises the following raw materials in parts by weight: 60 parts of aluminum, 15 parts of zinc, 5 parts of manganese, 5 parts of gallium, 10 parts of ferrocene and 12 parts of potassium, wherein the catalyst is Ni3Sn or Ni3 Fe;
the main material of the catalyst carrier is silicon dioxide and titanium dioxide;
the catalyst carrier auxiliary material is barium oxide; the adhesive comprises water glass, and the auxiliary agent comprises argon atmosphere, a stabilizer and a grinding aid; the stabilizer consists of organic tin, organic antimony and organic rare earth, and the grinding aid consists of stannous chloride.
A preparation method of a cracking agent for hydrogen production,
the method comprises the following steps:
step one: weighing raw materials with proper quality according to the proportion, and mixing into an alloy matrix and a catalyst carrier;
step two: mixing the mixed alloy matrix and the catalyst carrier according to a proportion, then placing the mixture into a grinder for mechanical grinding, keeping a seal in the grinder, adding argon atmosphere, and simultaneously placing a grinding aid and a stabilizer for continuous grinding for 0.6h;
step three: sieving the ground powder by vibration, wherein the specification of a filter screen is 150 meshes;
step four: then adding the catalyst into the mixed powder for fully stirring, adding the adhesive for 3 times in the stirring process, and keeping the stirring time for 0.7h;
step five: placing the mixed powder in the fourth step into a crucible for sintering, and calcining the crucible in an argon atmosphere, wherein the calcining temperature is controlled at 1200 ℃;
step six: taking out the calcined material in the fifth step, grinding and sieving, wherein the sieving specification is 250 meshes, and obtaining the cracking agent for hydrogen production.
Embodiment four:
a cracking agent for hydrogen production, which comprises the following raw materials: alloy matrix, catalyst carrier, catalyst, adhesive and auxiliary agent;
the catalyst carrier is formed by mixing a main material of the catalyst carrier and auxiliary materials of the catalyst carrier;
the alloy matrix comprises the following raw materials in parts by weight: 60 parts of aluminum, 10 parts of zinc, 15 parts of manganese, 1 part of gallium, 10 parts of ferrocene and 4 parts of potassium, and the catalyst is prepared from Ni3 Fe;
the main materials of the catalyst carrier are sodium chloride, molybdenum disulfide and aluminum oxide;
the catalyst carrier auxiliary materials are calcium oxide and barium oxide; the adhesive comprises one or more of water glass and paste, and the auxiliary agent comprises argon atmosphere, a stabilizer and a grinding aid; the stabilizer consists of organic tin, organic antimony and organic rare earth, and the grinding aid consists of potassium chloride and stannous chloride.
A preparation method of a cracking agent for hydrogen production,
the method comprises the following steps:
step one: weighing raw materials with proper quality according to the proportion, and mixing into an alloy matrix and a catalyst carrier;
step two: mixing the mixed alloy matrix and the catalyst carrier according to a proportion, then placing the mixture into a grinder for mechanical grinding, keeping a seal in the grinder, adding argon atmosphere, and simultaneously placing a grinding aid and a stabilizer for continuous grinding for 0.2h;
step three: sieving the ground powder by vibration, wherein the specification of a filter screen is 100 meshes;
step four: then adding the catalyst into the mixed powder for fully stirring, adding the adhesive for 3 times in the stirring process, and keeping the stirring time for 0.5h;
step five: placing the mixed powder in the fourth step into a crucible for sintering, and calcining the crucible in an argon atmosphere, wherein the calcining temperature is controlled at 1600 ℃;
step six: taking out the calcined material in the fifth step, grinding and sieving, wherein the sieving specification is 200 meshes, and obtaining the cracking agent for hydrogen production.
Fifth embodiment:
a cracking agent for hydrogen production, which comprises the following raw materials: alloy matrix, catalyst carrier, catalyst, adhesive and auxiliary agent;
the catalyst carrier is formed by mixing a main material of the catalyst carrier and auxiliary materials of the catalyst carrier;
the alloy matrix comprises the following raw materials in parts by weight: 60 parts of aluminum, 10 parts of zinc, 5 parts of manganese, 5 parts of gallium, 10 parts of ferrocene and 12 parts of potassium, wherein the catalyst is Ni3 Sn;
the main material of the catalyst carrier is prepared by mixing sodium chloride and molybdenum disulfide;
the catalyst carrier auxiliary materials are calcium oxide and barium oxide; the adhesive comprises water glass, and the auxiliary agent comprises argon atmosphere, a stabilizer and a grinding aid; the stabilizer consists of organic tin and organic antimony, and the grinding aid consists of potassium chloride.
A preparation method of a cracking agent for hydrogen production,
the method comprises the following steps:
step one: weighing raw materials with proper quality according to the proportion, and mixing into an alloy matrix and a catalyst carrier;
step two: mixing the mixed alloy matrix and the catalyst carrier according to a proportion, then placing the mixture into a grinder for mechanical grinding, keeping a seal in the grinder, adding argon atmosphere, and simultaneously placing a grinding aid and a stabilizer for continuous grinding for 0.2h;
step three: sieving the ground powder by vibration, wherein the specification of a filter screen is 300 meshes;
step four: then adding the catalyst into the mixed powder for fully stirring, adding the adhesive for 3 times in the stirring process, and keeping the stirring time for 1h;
step five: placing the mixed powder in the fourth step into a crucible for sintering, and calcining the crucible in an argon atmosphere, wherein the calcining temperature is controlled at 1600 ℃;
step six: taking out the calcined material in the fifth step, grinding and sieving, wherein the sieving specification is 300 meshes, and obtaining the cracking agent for hydrogen production.
The beneficial effects of the invention are as follows: according to the cracking agent for hydrogen production and the preparation method thereof, an oxide film formed in the hydrogen production process can be reduced, the contact area is increased through the adhesive, the reaction can be stable and controllable, the hydrogen production proportion is finally greatly improved, common metals such as aluminum and the like and alloys are adopted as core components, and the preparation is convenient and the cost is low; the oxidation film on the surface layer of the metal aluminum is differentiated through alloying, or eutectic or intermetallic compound is formed, and the micro corrosion battery is formed when meeting water, so that hydrogen is continuously generated; the prepared catalyst alloy particles have the advantages of nano size, large void ratio, favorable adsorption of hydrocarbon and precipitation of gas products due to the collocation of the catalyst carrier and the catalyst, and good mechanical stability of the alloy.
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 (8)
1. A cracking agent for hydrogen production, which is characterized by comprising the following raw materials: alloy matrix, catalyst carrier, catalyst, adhesive and assistant.
2. The cracking agent for hydrogen production according to claim 1, wherein the catalyst carrier is formed by mixing a catalyst carrier main material and a catalyst carrier auxiliary material.
3. The cracking agent for hydrogen production as claimed in claim 2, wherein the alloy matrix comprises the following raw materials in parts by weight: 60-70 parts of aluminum, 10-15 parts of zinc, 5-15 parts of manganese, 1-5 parts of gallium, 10-20 parts of ferrocene and 4-12 parts of potassium, and the catalyst is Ni3Sn or Ni3 Fe.
4. A cracking agent for hydrogen production according to claim 3, wherein the main materials of the catalyst carrier are two or more of sodium chloride, molybdenum disulfide, aluminum oxide, silica, and titania;
the catalyst carrier auxiliary material is one or more of calcium oxide and barium oxide.
5. A cracking agent for hydrogen production according to claim 4, wherein said binder comprises one or more of water glass and paste, and said auxiliary agent comprises an argon atmosphere, a stabilizer and a grinding aid; the stabilizer consists of one or more of organic tin, organic antimony and organic rare earth, and the grinding aid consists of one or more of potassium chloride and stannous chloride.
6. The method for producing a cracking agent for hydrogen production according to any one of claims 1 to 5, comprising the steps of:
step one: weighing raw materials with proper quality according to the proportion, and mixing into an alloy matrix and a catalyst carrier;
step two: mixing the mixed alloy matrix and the catalyst carrier according to a proportion, and then putting the mixture into a grinder for mechanical grinding;
step three: sieving the ground powder by vibration, wherein the specification of a filter screen is 100-300 meshes;
step four: then adding the catalyst into the mixed powder for fully stirring, adding the adhesive for 2-3 times in the stirring process, and keeping the stirring time for 0.5-1h;
step five: placing the mixed powder in the fourth step into a crucible for sintering;
step six: taking out the calcined material in the fifth step, grinding and sieving, wherein the sieving specification is 200-300 meshes, and obtaining the cracking agent for hydrogen production.
7. The method for preparing a cracking agent for hydrogen production according to claim 6, wherein the grinding machine is kept sealed and an argon atmosphere is added while grinding aid and stabilizer are put in, and grinding is continued for 0.2-1h.
8. The method for preparing a cracking agent for hydrogen production according to claim 6, wherein in the fifth step, the crucible is calcined in an argon atmosphere, and the calcining temperature is controlled to be 1000-1600 ℃.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104383935A (en) * | 2014-10-23 | 2015-03-04 | 中国计量学院 | Preparation method of nickel-based catalyst for hydrogen production by methanol decomposition |
| CN115010086A (en) * | 2022-05-20 | 2022-09-06 | 泰州中和氢能源科技有限公司 | Cracking agent for hydrogen production, preparation method thereof and method for preparing hydrogen by using cracking agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104383935A (en) * | 2014-10-23 | 2015-03-04 | 中国计量学院 | Preparation method of nickel-based catalyst for hydrogen production by methanol decomposition |
| CN115010086A (en) * | 2022-05-20 | 2022-09-06 | 泰州中和氢能源科技有限公司 | Cracking agent for hydrogen production, preparation method thereof and method for preparing hydrogen by using cracking agent |
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