CN112299369A - Hydrogen production system - Google Patents
Hydrogen production system Download PDFInfo
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- CN112299369A CN112299369A CN202011141549.4A CN202011141549A CN112299369A CN 112299369 A CN112299369 A CN 112299369A CN 202011141549 A CN202011141549 A CN 202011141549A CN 112299369 A CN112299369 A CN 112299369A
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- hydrogen production
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 78
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 78
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 239000000654 additive Substances 0.000 claims abstract description 39
- 230000000996 additive effect Effects 0.000 claims abstract description 37
- 230000008014 freezing Effects 0.000 claims abstract description 27
- 238000007710 freezing Methods 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 25
- 239000007864 aqueous solution Substances 0.000 claims abstract description 24
- 239000012279 sodium borohydride Substances 0.000 claims abstract description 11
- 229910000033 sodium borohydride Inorganic materials 0.000 claims abstract description 11
- 229910012375 magnesium hydride Inorganic materials 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 23
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000003054 catalyst Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 7
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 7
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L magnesium chloride Substances [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 7
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 7
- 239000001630 malic acid Substances 0.000 claims description 7
- 235000011090 malic acid Nutrition 0.000 claims description 7
- 229910021580 Cobalt(II) chloride Inorganic materials 0.000 claims description 6
- 229910021592 Copper(II) chloride Inorganic materials 0.000 claims description 6
- 229910021577 Iron(II) chloride Inorganic materials 0.000 claims description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical group [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 6
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 150000003841 chloride salts Chemical class 0.000 claims description 6
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 6
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 6
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical group [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 6
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims description 5
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- -1 Cuo Substances 0.000 claims description 3
- GTTSNKDQDACYLV-UHFFFAOYSA-N Trihydroxybutane Chemical compound CCCC(O)(O)O GTTSNKDQDACYLV-UHFFFAOYSA-N 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000001802 infusion Methods 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 claims 1
- 150000001298 alcohols Chemical class 0.000 claims 1
- 125000001309 chloro group Chemical class Cl* 0.000 claims 1
- 150000002431 hydrogen Chemical class 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 239000011232 storage material Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 150000001804 chlorine Chemical class 0.000 description 2
- 238000001595 flow curve Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
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
- C01B3/065—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 from a hydride
-
- 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)
- Fuel Cell (AREA)
Abstract
The invention discloses a hydrogen production system, which comprises a reactor, a water pump and a liquid storage tank, wherein the reactor is provided with a liquid inlet and a gas outlet and is used for containing hydrogen production substances capable of reacting with water to produce hydrogen, the liquid storage tank is provided with a liquid supplementing opening and a liquid outlet, the liquid outlet of the liquid storage tank is communicated with the water inlet of the water pump, the water outlet of the water pump is communicated with the liquid inlet of the reactor, the liquid storage tank is used for containing aqueous solution of an additive, the freezing point of the aqueous solution of the additive is lower than that of water, and the hydrogen production substances are MgH2And/or NaBH4The additive is added into the water in the liquid storage tank, so that the freezing point of the aqueous solution of the additive is reduced to be lower than 0 ℃, the hydrogen production system can be started at any time under the low-temperature environment, and the liquid in the liquid storage tank does not need to be heated to be liquefied before hydrogen production reaction.
Description
Technical Field
The invention belongs to the field of hydrogen fuel cells, and particularly relates to a hydrogen production system.
Background
MgH2And NaBH4All belong to chemical adsorption type hydrogen storage materials, but the chemical adsorption type hydrogen storage materials are restricted by kinetics and thermodynamics, so that MgH is generated2And NaBH4The production of hydrogen by pyrolysis, MgH, is severely limited2The pyrolysis temperature of (A) is 300 ℃, NaBH4The pyrolysis temperature is up to 475 ℃, the hydrolysis needs to be carried out at normal temperature or higher temperature to release hydrogen efficiently, but under the condition of negative temperature (below 0 ℃), on one hand, water is solidified, and the solid is causedHydrogen storage material MgH2And NaBH4The hydrolysis of the hydrogen storage material cannot be carried out, and hydrogen production is proposed by utilizing the gas-solid reaction of water vapor and a solid hydrogen storage material, so that a power supply and heating device with high power is additionally required, high heat is required for changing the aqueous solution from a solidification state to a gas state, the power consumption is high, on the other hand, the hydrogen storage material has slow hydrogen kinetics at a negative temperature, and the problems can cause the difficulty in using the hydrogen storage material in a low-temperature environment (below 0 ℃).
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a hydrogen generator capable of flexibly and conveniently generating hydrogen under a negative temperature condition.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a hydrogen production system, includes reactor, water pump and liquid reserve tank, the reactor has inlet and gas outlet, is used for accommodating the hydrogen production material that can react with water and produce hydrogen in it, the liquid reserve tank has fluid infusion mouth and liquid outlet, the liquid outlet of liquid reserve tank with the water inlet intercommunication of water pump, the delivery port of water pump with the inlet intercommunication of reactor, be used for accommodating the aqueous solution of additive in the liquid reserve tank, the freezing point of the aqueous solution of additive is less than the freezing point of water, hydrogen production material is MgH2And/or NaBH4。
The beneficial effects of the above technical scheme are that: the additive is added into the water in the liquid storage tank, so that the freezing point of the aqueous solution of the additive is reduced to be below 0 ℃, the hydrogen production system can be started at any time under the low-temperature environment, and the liquid in the liquid storage tank does not need to be heated to be liquefied before hydrogen production reaction.
Still include the heater among the above-mentioned technical scheme, the heater has water inlet and delivery port, the delivery port of water pump with the water inlet intercommunication of heater, the delivery port of heater with the inlet of reactor intercommunication.
The beneficial effects of the above technical scheme are that: the liquid entering the reactor can be heated by the heater, so that the reaction speed in the reactor is increased.
In the technical scheme, the additive is one or a mixture of more of chloride salt, acid and alcohol.
The beneficial effects of the above technical scheme are that: the freezing point of the water solution is obviously lower than that of water, so that the whole hydrogen production system can flexibly operate in a lower temperature environment.
In the technical scheme, the chlorine salt is MgCl2The concentration of the additive in the aqueous solution of the additive is 1-70%.
The technical scheme has the beneficial effect that MgCl2Has good effect of reducing the freezing point of water, can ensure that the aqueous solution of the water solution has lower freezing point, and is MgCl2Has obvious promoting effect on the reaction of hydrogen-producing substance and water, and can accelerate the production of hydrogen.
In the technical scheme, the chloride salt is LiCl, KCl, CuCl or CuCl2、FeCl2、FeCl3、CoCl2And NiCl2A mixture of one or more of them.
The beneficial effects of the above technical scheme are that: which can significantly lower the freezing point of water.
In the technical scheme, the acid is HCl and H2SO4And one or more of citric acid, malic acid and acetic acid.
The beneficial effects of the above technical scheme are that: which can significantly lower the freezing point of water.
In the technical scheme, the alcohol is methanol, ethanol or a mixture of the methanol and the ethanol, and the mass ratio of the alcohol to water in the aqueous solution of the additive is 0.01-1: 1.
the beneficial effects of the above technical scheme are that: the freezing point of water is obviously reduced.
In the technical scheme, the alcohol is one or a mixture of more of propanol, butanol, ethylene glycol, propylene glycol, butanediol, glycerol and butanetriol.
The beneficial effects of the above technical scheme are that: which can significantly lower the freezing point of water.
In the technical scheme, the mass ratio of the additive to water in the aqueous solution of the additive is 0.01-1: 1.
the beneficial effects of the above technical scheme are that: the content of the additives in the aqueous additive solution can thus be selected as desired, so that the freezing points of the aqueous additive solutions differ.
In the technical scheme, the reactor is also added with a catalyst, the catalyst is uniformly mixed with a hydrogen production substance, and the catalyst is LiOH, NaOH, KOH, Cuo, MgO, CaO, Al, Mg, citric acid, malic acid, boric acid or FeCl2、FeCl3、CoCl2、CuCl、CuCl2And NiCl2A mixture of one or more of (a); the mass ratio of the catalyst to the hydrogen production substance is 0-0.5: 1.
The beneficial effects of the above technical scheme are that: the substances have catalytic action on the reaction of hydrogen-producing substances and water in the reactor, exist in solid state, and can be prepared into powder and uniformly mixed with the hydrogen-producing substances.
Drawings
FIG. 1 is a schematic structural diagram of a hydrogen production system according to an embodiment of the invention;
FIG. 2 is a hydrogen discharge flow curve diagram after the hydrogen production system is started according to the embodiment of the invention;
FIG. 3 is a diagram of the hydrogen production rate after the hydrogen production system is started according to the embodiment of the invention.
In the figure: 1 reactor, 2 water pump, 3 liquid storage tank, 4 heater.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in figure 1, the invention provides a hydrogen production system, which comprises a reactor 1, a water pump 2 and a liquid storage tank 3, wherein the reactor 1 is provided with a liquid inlet and a gas outlet and is used for containing hydrogen production substances capable of reacting with water to generate hydrogen, the liquid storage tank 3 is provided with a liquid supplementing opening and a liquid outlet, the liquid outlet of the liquid storage tank 3 is communicated with a water inlet of the water pump 2, a water outlet of the water pump 2 is communicated with the liquid inlet of the reactor 1, and the liquid storage tank 3 is internally provided with a liquid supplementing opening and a liquid outletThe additive is contained in an aqueous solution, the freezing point of the aqueous solution of the additive is lower than that of water, and the hydrogen-generating substance is MgH2And/or NaBH4(wherein the hydrogen-generating substance is MgH2And NaBH4During, two kinds of substances are in but the layering distributes or the two misce bene in the casing), through adding the additive to the water the inside in the liquid reserve tank to make the freezing point of additive aqueous solution reduce to below 0 ℃, thereby make whole hydrogen production system can start hydrogen production at any time under low temperature environment, need not to heat the liquid in the liquid reserve tank earlier and just can carry out the hydrogen production reaction after liquefying.
Still include the heater among the above-mentioned technical scheme, the heater has water inlet and delivery port, the delivery port of water pump with the water inlet intercommunication of heater, the delivery port of heater with the inlet intercommunication of reactor, so accessible heater comes to heat the liquid that enters into in the reactor for reaction speed in the reactor accelerates.
In the technical scheme, the additive is a mixture of one or more of chloride, acid and alcohol, and the freezing point of the aqueous solution of the additive is obviously lower than that of water, so that the whole hydrogen production system can flexibly operate in a lower temperature environment.
In the technical scheme, the chloride salt is LiCl, KCl, CuCl or CuCl2、FeCl2、FeCl3、CoCl2And NiCl2The freezing point of water can be obviously reduced, and partial chloride salt in the mixture has an effect of promoting the hydrogen production reaction in the reactor.
In the technical scheme, the acid is HCl and H2SO4One or more of citric acid, malic acid and acetic acid, which can lower the freezing point of water obviously, and the citric acid or malic acid has the function of promoting the hydrogen production reaction in the reactor.
In the technical scheme, the alcohol is methanol, ethanol or a mixture of the methanol and the ethanol, and the mass ratio of the alcohol to water in the aqueous solution of the additive is 0.01-1: 1, the freezing point of the hydrogen-generating substance is obviously reduced, and the hydrogen-generating substance can be promoted to react with water to generate hydrogen.
In the technical scheme, the alcohol is one or a mixture of more of propanol, butanol, ethylene glycol, propylene glycol, butanediol, glycerol and butanetriol, and can obviously lower the freezing point of water.
In the technical scheme, the mass ratio of the additive to water in the aqueous solution of the additive is 0.01-1: 1, the content of the additives in the aqueous additive solution can be selected as desired, so that the freezing points of the aqueous additive solutions are different.
In the technical scheme, the reactor is also added with a catalyst, the catalyst is uniformly mixed with a hydrogen production substance, and the catalyst is LiOH, NaOH, KOH, Cuo, MgO, CaO, Al, Mg, citric acid, malic acid, boric acid or FeCl2、FeCl3、CoCl2、CuCl、CuCl2And NiCl2The catalyst has a catalytic effect on the reaction of the hydrogen-producing substance in the reactor and water, exists in a solid state, can be prepared into powder and is uniformly mixed with the hydrogen-producing substance, and preferably, the mass ratio of the catalyst to the hydrogen-producing substance is 0-0.5: 1.
Of course, the chlorine salt in the above technical scheme can be MgCl2The concentration of which in the aqueous additive solution is 1-70%, MgCl2Has good effect of reducing the freezing point of water, can ensure that the water solution of the hydrogen-generating substance has lower freezing point, and has remarkable promoting effect on the reaction of the hydrogen-generating substance and the water.
Examples
Filling reaction powder A and reaction powder B into a fuel tank in a layered manner (wherein the lower layer is the reaction powder A, and the upper layer is the reaction powder B), wherein the mass ratio of the reaction powder A to the reaction powder B in the reactor is 1:5, the reaction powder A is magnesium hydride powder, the reaction powder B is mixed powder of sodium hydroxide, sodium borohydride and magnesium hydride, and the mass ratio of the mass of the sodium hydroxide in the reaction powder B to the sum of the mass of the sodium borohydride and the mass of the magnesium hydride is 0-0.5:1 (reaction powder B should be carried out in a nitrogen-protected glove box during mixing).
Wherein, the liquid storage tank contains 30 wt% of MgCl2An aqueous solution of (a).
During the start-up, squeeze into the reactor through the solution of water pump in with the receiver tank, the reaction starts hydrogen production promptly, and the structure diagram of this embodiment hydrogen production system is shown in FIG. 1.
Fig. 2 is a hydrogen discharge flow curve corresponding to the present embodiment, and it can be seen from fig. 2 that a large amount of hydrogen can be stably collected after about 2min after the water pump is started, the reaction is rapid, and the hydrogen can be continuously supplied for about 1.3 h; FIG. 3 is a hydrogen production rate curve corresponding to example 1, and the hydrogen evolution rate is 89% and approaches 90% at the end of the reaction, and the hydrogen conversion rate is high.
The invention reduces the freezing point of the solution in the liquid storage tank by adding the aqueous solution of the additive into the liquid storage tank, so that the whole hydrogen production reaction system can be conveniently used at the ambient temperature above the freezing point of the solution, and the hydrogen production substance and water can react more easily by adding the catalyst into the reactor.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a hydrogen production system, its characterized in that, includes reactor (1), water pump (2) and liquid reserve tank (3), reactor (1) has inlet and gas outlet, is used for holding the hydrogen production material that can produce hydrogen with the water reaction in it, liquid reserve tank (3) have fluid infusion mouth and liquid outlet, the liquid outlet of liquid reserve tank (3) with the water inlet intercommunication of water pump (2), the delivery port of water pump (2) with the inlet intercommunication of reactor (1), be used for holding the aqueous solution of additive in liquid reserve tank (3), the freezing point of the aqueous solution of additive is less than the freezing point of water, hydrogen production material is MgH2And/or NaBH4。
2. The hydrogen production system according to claim 1, further comprising a heater (4), wherein the heater (4) is provided with a water inlet and a water outlet, the water outlet of the water pump (2) is communicated with the water inlet of the heater (4), and the water outlet of the heater (4) is communicated with the liquid inlet of the reactor (1).
3. The hydrogen-generation system of claim 1, wherein the additive is a mixture of one or more of chloride salts, acids, and alcohols.
4. The hydrogen generation system of claim 3, wherein the chlorine salt is MgCl2The concentration of the additive in the aqueous solution of the additive is 1-70%.
5. The hydrogen generation system of claim 3, wherein the chloride salt is LiCl, KCl, CuCl2、FeCl2、FeCl3、CoCl2And NiCl2A mixture of one or more of them.
6. The hydrogen generation system of claim 3, wherein the acids are HCl, H2SO4And one or more of citric acid, malic acid and acetic acid.
7. The hydrogen production system according to claim 3, wherein the alcohol is methanol, ethanol or a mixture of the methanol and the ethanol, and the mass ratio of the alcohol to the water in the aqueous solution of the additive is 0.01-1: 1.
8. the hydrogen-generation system of claim 3, wherein the alcohol is a mixture of one or more of propanol, butanol, ethylene glycol, propylene glycol, butylene glycol, glycerol, and butanetriol.
9. The hydrogen generation system according to any one of claims 5 to 8, wherein the mass ratio of the additive to water in the aqueous solution of the additive is 0.01 to 1: 1.
10. the hydrogen generation system of claim 7, wherein the hydrogen production systemThe reactor is also added with a catalyst, the catalyst is uniformly mixed with a hydrogen production substance, and the catalyst is LiOH, NaOH, KOH, Cuo, MgO, CaO, Al, Mg, citric acid, malic acid, boric acid and FeCl2、FeCl3、CoCl2、CuCl、CuCl2And NiCl2The mass ratio of the catalyst to the hydrogen-producing substance is 0-0.5: 1.
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| CN202011141549.4A CN112299369A (en) | 2020-10-22 | 2020-10-22 | Hydrogen production system |
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| CN202011141549.4A CN112299369A (en) | 2020-10-22 | 2020-10-22 | Hydrogen production system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US20050135996A1 (en) * | 2003-12-19 | 2005-06-23 | Ortega Jeffrey V. | Triborohydride salts as hydrogen storage materials and preparation thereof |
| US20070041897A1 (en) * | 2005-07-12 | 2007-02-22 | Eickhoff Steven J | Low temperature hydrogen generator |
| WO2008132986A1 (en) * | 2007-04-12 | 2008-11-06 | Hiromaito Co., Ltd. | Hydrogen-generating agent, method for production thereof, and hydrogen generation apparatus |
| WO2014198948A1 (en) * | 2013-06-14 | 2014-12-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Device and method for the hydrolytic production of hydrogen, device for producing electrical energy and possibilities for usage |
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2020
- 2020-10-22 CN CN202011141549.4A patent/CN112299369A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030014917A1 (en) * | 2001-07-09 | 2003-01-23 | Ali Rusta-Sallehy | Chemical hydride hydrogen generation system and an energy system incorporating the same |
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