CN101177238A - Hydroboron hydrogen generator using soft package - Google Patents

Hydroboron hydrogen generator using soft package Download PDF

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Publication number
CN101177238A
CN101177238A CNA200710156161XA CN200710156161A CN101177238A CN 101177238 A CN101177238 A CN 101177238A CN A200710156161X A CNA200710156161X A CN A200710156161XA CN 200710156161 A CN200710156161 A CN 200710156161A CN 101177238 A CN101177238 A CN 101177238A
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China
Prior art keywords
hydroborate
soft package
hydrogen generator
hydrogen
nabh
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CNA200710156161XA
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Chinese (zh)
Inventor
刘宾虹
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Zhejiang University ZJU
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Zhejiang University ZJU
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Priority to CNA200710156161XA priority Critical patent/CN101177238A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

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  • Fuel Cell (AREA)

Abstract

The invention discloses a borohydride hydrogen generator using soft packaging, comprising a soft packaging bag, a flow regulator, a reactor and a gas-liquid separator, which are connected mutually; wherein, a liquid inlet is arranged on the soft packaging bag; the soft packaging bag comprises a new solution storage cavity and a waste solution storage cavity which are formed with three layers of membranes, borohydride solid compounds; borohydride solid mixture or water solution of borohydride mixture is arranged in the new solution storage cavity of the soft packaging bag, and hydrogen generation catalyst is arranged in the generator. As membrane is adopted to divide the soft packaging bag into two cavities, the invention not only meets the requirement of reaction, but also enables the reactant to share space with the resultants, so as to save the space; thereby the system reaches minimum volume at any time, and the sodium borohydride hydrogen generator is more superior than other hydrogen generation systems in weight, volume and hydrogen storage density.

Description

A kind of hydroborate hydrogen generator that uses soft package
Technical field
The present invention relates to a kind of hydroborate hydrogen generator that uses soft package.
Background technology
Hydrogen Energy is a kind of secondary energy of cleaning.Foundation is the problem that the renewable energy source system of carrier can solve present energy shortage and these two big serious restriction Economic developments of environmental pollution effectively with hydrogen.In recent years the leap raising of fuel cell on performance also provides wide prospect for the use of Hydrogen Energy.But also do not find a kind of energy economical, efficient at present, store the method for hydrogen safely, thereby hindered the commercialization process of fuel cell to a great extent.
Under this background, hydroborate (M (BH 4) n, M=Li, Na, K, Mg, Al etc.) especially sodium borohydride is because of its hydrogen content up to 10.6wt%, and under the effect of catalyzer, can emit whole hydrogen at normal temperatures and gazed at:
NaBH 4+2H 2O=NaBO 2+4H 2
In above-mentioned reaction, can generate the weight that the hydrogen amount accounts for reactant and reach 10.8wt%.In addition, the gas resultant of sodium borohydride hydrolysis reaction has only hydrogen, does not contain the impurity that carbon monoxide etc. might be poisoned fuel battery performance.Therefore, sodium borohydride is particularly suitable as the hydrogen source of fuel cell.
Consider the Commercial Prospect of sodium borohydride as the portable hydrogen source of small-sized and micro fuel cell (power is less than 100W), be energy safety, use easily, it is principle that the present invention produces hydrogen with the sodium borohydride catalyzing hydrolyzation reaction, make a kind of safety easy to carry, the hydrogen-storage density height uses simple portable apparatus for forming hydrogen.
Summary of the invention
The purpose of this invention is to provide a kind of hydroborate hydrogen generator that uses soft package.
Use the hydroborate hydrogen generator of soft package to have soft package bag, flow regulator, reactor, the gas-liquid separator that is connected, on the soft package bag, be provided with fluid inlet, the soft package bag is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, the aqueous solution of hydroborate solid chemical compound, hydroborate solid mixture or hydroborate mixture is housed in the soft package bag new soln liquid storage space, hydrogen generation catalyzer is housed in the reactor.
Described soft package bag 1 volume is 5-500ml.The material of borohydride fuel soft package bag 1 is a polyethylene, polypropylene, poly-third ethene, polystyrene, polyvinylidene chloride, polymeric amide, polyvinyl alcohol, the composite membrane of these materials or aluminum-plastic composite membrane.The hydroborate solid chemical compound is LiBH 4, NaBH 4Or KBH 4The hydroborate solid mixture is LiBH 4, NaBH 4Or KBH 4Mixture with stablizer.The hydroborate solid mixture aqueous solution is LiBH 4, NaBH 4Or KBH 4The aqueous solution with stablizer.With LiBH 4, NaBH 4Or KBH 4Corresponding stablizer is LiOH, NaOH or KOH, and the weight ratio of hydroborate solid chemical compound and stablizer is 1: 0.1-1.LiBH 4, NaBH 4Or KBH 4With LiBH in the aqueous solution of stablizer 4, NaBH 4Or KBH 4Weight percent concentration be 1-50%, the stablizer weight percent concentration is 1-10%.Hydrogen generation catalyzer is transition metal Fe, Co, Ni, Cu, Pd, Pt, Ru and alloy thereof, or the thunder Buddhist nun type catalyzer of these elements and alloy thereof.Hydrogen generation catalyzer is held in Al by load 2O 3, molecular sieve, various carbon materials are on resin or the foam metal carrier material.
The present invention is producing, and in the processes such as accumulating, the mixture of sodium borohydride or sodium borohydride and stablizer is encapsulated in the soft packaging bag with solid form.The volume of hydrogen production bioreactor minimizes before using like this.And owing in preservation and storage and transport process, do not make solution, eliminated the possibility of sodium borohydride hydrolysis in this process, improved security and high efficiency in the storage process greatly.Because though sodium borohydride solution has certain stability under catalyst-free and the situation that has stablizer such as sodium hydroxide to exist, but still with faint speed and water reaction, so have certain potential safety hazard.In addition, big too with solution form accumulating volume.Sodium borohydride is encapsulated in the soft packaging separately or after sodium borohydride and the few stable agent mixing, and the water wiring solution-forming reinjects before the use.The volume of producer remains at minimum before can using like this, does not also have any inconvenience during use.Compare with rigid container, soft package can make device not account for unnecessary volume all along.
On the other hand, because hydrolysis reaction speed is subjected to the influence of sodium borohydride concentration in the solution, concerning big multi-catalyst, reaction is first order reaction kinetics, i.e. speed of response and the proportional relation of sodium borohydride concentration.For making speed of response reach invariable, be necessary to make that sodium borohydride solution is disposable promptly finishes reaction by reactor, enter waste fluid container then.So just need two containers, take one times space.If use the present invention to cut apart two spaces with film, can reach the requirement of reaction, can make the reactant and the resultant communal space again and seldom account for volume.So just make system at any time can both reach volume and minimize, thereby the sodium borohydride hydrogen generator is all had superiority than other hydrogen generation systems on the weight and volume hydrogen-storage density.
Description of drawings
Accompanying drawing is a soft packaging hydrogen generator structural representation, among the figure: soft package bag 1, new soln liquid storage space 1 (a), lean solution liquid storage space 1 (b), flow regulator 2, reactor 3, gas-liquid separator 4, fluid inlet 5.
Embodiment
As shown in drawings, use the hydroborate hydrogen generator of soft package to have soft package bag 1, flow regulator 2, reactor 3, the gas-liquid separator 4 that is connected, on soft package bag 1, be provided with fluid inlet 5, soft package bag 1 is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, the aqueous solution of hydroborate solid chemical compound, hydroborate solid mixture or hydroborate mixture is housed in the soft package bag 1 new soln liquid storage space, hydrogen generation catalyzer is housed in the reactor 3.
Described soft package bag 1 volume is 5-500ml.The material of borohydride fuel soft package bag 1 is a polyethylene, polypropylene, poly-third ethene, polystyrene, polyvinylidene chloride, polymeric amide, polyvinyl alcohol, the composite membrane of these materials or aluminum-plastic composite membrane.The hydroborate solid chemical compound is LiBH 4, NaBH 4Or KBH 4The hydroborate solid mixture is LiBH 4, NaBH 4Or KBH 4Mixture with stablizer.The hydroborate solid mixture aqueous solution is LiBH 4, NaBH 4Or KBH 4The aqueous solution with stablizer.With LiBH 4, NaBH 4Or KBH 4Corresponding stablizer is LiOH, NaOH or KOH, and the weight ratio of hydroborate solid chemical compound and stablizer is 1: 0.1-1.LiBH 4, NaBH 4Or KBH 4With LiBH in the aqueous solution of stablizer 4, NaBH 4Or KBH 4Weight percent concentration be 1-50%, the stablizer weight percent concentration is 1-10%.Hydrogen generation catalyzer is transition metal Fe, Co, Ni, Cu, Pd, Pt, Ru and alloy thereof, or the thunder Buddhist nun type catalyzer of these elements and alloy thereof.Hydrogen generation catalyzer is held in Al by load 2O 3, molecular sieve, various carbon materials are on resin or the foam metal carrier material.
Embodiment 1
Soft package bag 1 is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, and cumulative volume is 200ml.Wrapping material are polyethylene film.In the new soln liquid storage space of soft package bag 1 sodium borohydride (NaBH is housed 4) 30g and sodium hydroxide 5g.Inject water 165g from fluid inlet, form sodium borohydride solution in new soln liquid storage space.Open flow regulator 2 and make the solution inflow reactor, 5g Ni/Al is housed in the reactor 3 2O 3Hydrogen generation catalyzer, solution produce 0.5 liter/minute hydrogen under the effect of catalyzer, hydrogen separates at gas-liquid separator 4 places with raffinate, and raffinate flows into the lean solution liquid storage space of soft packaging bag.Common property hydrogen 68 standard cube liters.
Embodiment 2
Soft package bag 1 is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, and cumulative volume is 100ml.The packing bag skin is an aluminum-plastic composite membrane, and two liquid storage spatial separate layers are polyvinylidene chloride.In the new soln liquid storage space of soft package bag 1 sodium borohydride (NaBH is housed 4) 15g, sodium hydroxide 5g, water 80g.Open flow regulator 2 and make the solution inflow reactor, 2g Co/Al is housed in the reactor 3 2O 3Hydrogen generation catalyzer, solution produce 0.2 liter/minute hydrogen under the effect of catalyzer, hydrogen separates at gas-liquid separator 4 places with raffinate, and raffinate flows into the lean solution liquid storage space of soft packaging bag.Common property hydrogen 33.8 standard cube liters.
Embodiment 3
Soft package bag 1 is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, and cumulative volume is 500ml.Wrapping material are polyethylene film.In the new soln liquid storage space of soft package bag 1 sodium borohydride (NaBH is housed 4) 75g.Inject water 425g from fluid inlet, form sodium borohydride solution in new soln liquid storage space.Open flow regulator 2 and make the solution inflow reactor, 5g Ni/Al is housed in the reactor 3 2O 3Hydrogen generation catalyzer, solution produce 0.5 liter/minute hydrogen under the effect of catalyzer, hydrogen separates at gas-liquid separator 4 places with raffinate, and raffinate flows into the lean solution liquid storage space of soft packaging bag.Common property hydrogen 168 standard cube liters.
Embodiment 4
Soft package bag 1 is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, and cumulative volume is 200ml.Wrapping material are polyethylene film.In the new soln liquid storage space of soft package bag 1 sodium borohydride (NaBH is housed 4) 40g and sodium hydroxide 5g.Inject water 155g from fluid inlet, form sodium borohydride solution in new soln liquid storage space.Open flow regulator 2 and make the solution inflow reactor, 2g Pt/Al is housed in the reactor 3 2O 3Hydrogen generation catalyzer, solution produce 1 liter/minute hydrogen under the effect of catalyzer, hydrogen separates at gas-liquid separator 4 places with raffinate, and raffinate flows into the lean solution liquid storage space of soft packaging bag.Common property hydrogen 85 standard cube liters.
Embodiment 5
Soft package bag 1 is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, and cumulative volume is 100ml.Wrapping material are polyethylene film.In the new soln liquid storage space of soft package bag 1 lithium borohydride (LiBH is housed 4) 10g and lithium hydroxide 5g.Inject water 85g from fluid inlet, form lithium borohydride solution in new soln liquid storage space.Open flow regulator 2 and make the solution inflow reactor, 2g Pt/Al is housed in the reactor 3 2O 3Hydrogen generation catalyzer, solution produce 0.25 liter/minute hydrogen under the effect of catalyzer, hydrogen separates at gas-liquid separator 4 places with raffinate, and raffinate flows into the lean solution liquid storage space of soft packaging bag.Common property hydrogen 40.5 standard cube liters.
Embodiment 6
Soft package bag 1 is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, and cumulative volume is 100ml.Wrapping material are polyethylene film.In the new soln liquid storage space of soft package bag 1 sodium borohydride (KBH is housed 4) 10g and potassium hydroxide 2g.Inject water 88g from fluid inlet, form sodium borohydride solution in new soln liquid storage space.Open flow regulator 2 and make the solution inflow reactor, 2g Ru/ foam ni-mh generation catalyzer is housed in the reactor 3, solution produces 0.2 liter/minute hydrogen under the effect of catalyzer, hydrogen separates at gas-liquid separator 4 places with raffinate, and raffinate flows into the lean solution liquid storage space of soft packaging bag.Common property hydrogen 15 standard cube liters.

Claims (10)

1. hydroborate hydrogen generator that uses soft package, it is characterized in that having the soft package bag 1, flow regulator 2, reactor 3, the gas-liquid separator 4 that are connected, on soft package bag 1, be provided with fluid inlet 5, soft package bag 1 is formed new soln and two liquid storage spaces of lean solution by three-layer thin-film, the aqueous solution of hydroborate solid chemical compound, hydroborate solid mixture or hydroborate mixture is housed in the soft package bag 1 new soln liquid storage space, hydrogen generation catalyzer is housed in the reactor 3.
2. a kind of hydroborate hydrogen generator that uses soft package according to claim 1 is characterized in that described soft package bag 1 volume is 5-500ml.
3. a kind of hydroborate hydrogen generator that uses soft package according to claim 1, it is characterized in that, the material of described borohydride fuel soft package bag 1 is a polyethylene, polypropylene, poly-third ethene, polystyrene, polyvinylidene chloride, polymeric amide, polyvinyl alcohol, the composite membrane of these materials or aluminum-plastic composite membrane.
4. a kind of hydroborate hydrogen generator that uses soft package according to claim 1 is characterized in that described hydroborate solid chemical compound is LiBH 4, NaBH 4Or KBH 4
5. a kind of hydroborate hydrogen generator that uses soft package according to claim 1 is characterized in that described hydroborate solid mixture is LiBH 4, NaBH 4Or KBH 4Mixture with stablizer.
6. a kind of hydroborate hydrogen generator that uses soft package according to claim 1 is characterized in that the described hydroborate solid mixture aqueous solution is LiBH 4, NaBH 4Or KBH 4The aqueous solution with stablizer.
7. a kind of hydroborate hydrogen generator that uses soft package according to claim 5 is characterized in that described and LiBH 4, NaBH 4Or KBH 4Corresponding stablizer is LiOH, NaOH or KOH, and the weight ratio of hydroborate solid chemical compound and stablizer is 1: 0.1-1.
8. a kind of hydroborate hydrogen generator that uses soft package according to claim 6 is characterized in that described LiBH 4, NaBH 4Or KBH 4With LiBH in the aqueous solution of stablizer 4, NaBH 4Or KBH 4Weight percent concentration be 1-50%, the stablizer weight percent concentration is 1-10%.
9. a kind of hydroborate hydrogen generator that uses soft package according to claim 1 is characterized in that described hydrogen generation catalyzer is transition metal Fe, Co, Ni, Cu, Pd, Pt, Ru and alloy thereof, or the thunder Buddhist nun type catalyzer of these elements and alloy thereof.
10. a kind of hydroborate hydrogen generator that uses soft package according to claim 1 is characterized in that described hydrogen generation catalyzer is held in Al by load 2O 3, molecular sieve, various carbon materials are on resin or the foam metal carrier material.
CNA200710156161XA 2007-10-19 2007-10-19 Hydroboron hydrogen generator using soft package Pending CN101177238A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101633492B (en) * 2008-07-22 2013-02-27 汉能科技有限公司 Solid hydroboron hydrogen production method and device thereof
CN108883930A (en) * 2015-11-06 2018-11-23 H2燃料系统有限公司 Obtain method and apparatus, the corresponding mixture for generating the mixture of H2
CN109273741A (en) * 2018-11-01 2019-01-25 上海重塑能源科技有限公司 The hydrogen of fuel cell system is separated from water device and its working method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101633492B (en) * 2008-07-22 2013-02-27 汉能科技有限公司 Solid hydroboron hydrogen production method and device thereof
CN108883930A (en) * 2015-11-06 2018-11-23 H2燃料系统有限公司 Obtain method and apparatus, the corresponding mixture for generating the mixture of H2
CN109273741A (en) * 2018-11-01 2019-01-25 上海重塑能源科技有限公司 The hydrogen of fuel cell system is separated from water device and its working method

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Open date: 20080514