CN201971630U - Filler type filtration device for desorbing alkali fume contained in hydrogen - Google Patents
Filler type filtration device for desorbing alkali fume contained in hydrogen Download PDFInfo
- Publication number
- CN201971630U CN201971630U CN 201020667696 CN201020667696U CN201971630U CN 201971630 U CN201971630 U CN 201971630U CN 201020667696 CN201020667696 CN 201020667696 CN 201020667696 U CN201020667696 U CN 201020667696U CN 201971630 U CN201971630 U CN 201971630U
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- CN
- China
- Prior art keywords
- hydrogen
- filter
- type filtration
- filtration unit
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 74
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 74
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000003513 alkali Substances 0.000 title claims abstract description 28
- 238000001914 filtration Methods 0.000 title claims abstract description 17
- 239000000945 filler Substances 0.000 title claims abstract description 12
- 239000003517 fume Substances 0.000 title abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 35
- 239000011701 zinc Substances 0.000 claims abstract description 19
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 14
- 239000004411 aluminium Substances 0.000 claims description 32
- 239000003595 mist Substances 0.000 claims description 23
- 238000011049 filling Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 6
- 238000009954 braiding Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000006262 metallic foam Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004005 microsphere Substances 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 4
- 229910000033 sodium borohydride Inorganic materials 0.000 description 22
- 239000012279 sodium borohydride Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 20
- 230000007062 hydrolysis Effects 0.000 description 17
- 238000006460 hydrolysis reaction Methods 0.000 description 17
- 238000004140 cleaning Methods 0.000 description 14
- 238000005187 foaming Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 8
- 238000009833 condensation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 230000008676 import Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052987 metal hydride Inorganic materials 0.000 description 2
- 150000004681 metal hydrides Chemical class 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001996 bearing alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Chemical group 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
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- Fuel Cell (AREA)
Abstract
The utility model relates to filler type filters and aims to provide a filler type filtration device for desorbing the alkali fume contained in hydrogen. The device comprises a container containing metallic filler made of aluminum or zinc; and a hydrogen inlet and a hydrogen outlet are formed on the container. The filters provided by the utility model can be jointed in series or in parallel with filtration units at will so as to meet the requirements of various uses; and the filters can generate hydrogen while eliminating the alkali fume. Periodical maintenance of the filler type filtration device only requires simple replacement of the filter at the first stage, and a new filter is connected as a last-stage filter for connection, so that the maintenance is convenient. As aluminum and zinc are fairly low-cost, the cost can be greatly lowered, so as to realize the low-cost hydrogen purification.
Description
Technical field
The utility model relates to a kind of material filling type strainer, more particularly, the utility model relates to and utilizes alkali mist and metallic aluminium or zinc reaction, eliminate the alkali mist that produces in electrolytic hydrogen production or the preparing hydrogen by sodium borohydride hydrolysis process, a kind of filtration unit of cleaning, purified hydrogen is provided for Proton Exchange Membrane Fuel Cells.
Background technology
Electrolytic hydrogen production is the byproduct of chlorine industry, when obtaining NaOH, obtains chlorine and hydrogen by electrolysis NaCl solution, and the hydrogen that is produced is carried part solution secretly and formed droplet.Sodium borohydride is the higher complex metal hydride of hydrogen content (hydrogen content 10.8wt%), is a kind of solid of white.United States Patent (USP) (US 6 358 488) has been reported the method that adopts nickel, cobalt or hydrogen-bearing alloy powder catalysis sodium borohydride hydrolysis generation hydrogen.Reaction equation is as follows:
NaBH
4+?2H
2O→4H
2?+NaBO
2
Compare with other storage hydrogen modes, the hydrogen-storage amount height of fuel is 5 times of common metal hydride hydrogen storage; In reaction process, do not need the external energy just can be NaBH
4And the hydrogen release in the water is come out.In recent years, sodium borohydride has been caused the extensive concern of scientist and enterprise as the technology that hydrogen storage material is used for hydrogen supply.
In theory, sodium borohydride can issue unboiled water in the effect of catalyzer and separate the purified hydrogen of reaction acquisition at normal temperatures and pressures.But, because hydrogen produces sodium borohydride aqueous solution, carry some solution in the hydrogen generating process inevitably secretly, form the alkali mist.When Proton Exchange Membrane Fuel Cells used the hydrogen of sodium borohydride hydrolysis generation to act as a fuel, the alkali mist of carrying secretly in the hydrogen will gather at the positive terminal of fuel cell, forms crystallization, destroys electrode, causes the damage of fuel cell.
Utility model patent (CN201082365) discloses a kind of device that is used for removing " the alkali mist " of electrolytic process hydrogen, oxygen process, comprise closed electrolysis groove, coil tube type capillary condensation pipe, radiator fan and take the water of condensation bin of tracheae out of, described coil tube type capillary condensation Guan Yiduan and described closed electrolysis groove join, the other end and described water of condensation bin join, be provided with first radiator fan in described coil tube type capillary condensation pipe one side, on described escape pipe, be connected in series a semi-conductor condenser, finally reached the purpose that removes the alkali mist.Utility model patent (CN101549855) discloses a kind of alkali-removing method that is used for borohydride hydrogen making.Described method adopts the solid purification medium to remove alkali mist in the hydrogen that sodium borohydride makes, and described solid purification medium is the binding substances of solid super-strong acid or solid super-strong acid and water-absorbing material.The alkali-removing method that this utility model provides have effective saving refining plant volume, remove alkali efficient height, can effectively avoid acid solution to flow backwards, remove the alkali device having the advantage of universal property.
The absorption process of the condensation method of utility model patent (CN201082365) and utility model patent (CN101549855) can purify the hydrogen that the sodium borohydride hydrolysis produces to a certain extent, but the condensation method degree of purification is limited, and there be the limit of absorption agent to alkali mist absorptive capacity in absorption process.
The utility model content
The technical problems to be solved in the utility model is, a kind of utilize alkali mist and metallic aluminium or zinc reaction are provided, and eliminates the alkali mist that produces in the preparing hydrogen by sodium borohydride hydrolysis process, and the filtration unit of cleaning, purified hydrogen is provided for Proton Exchange Membrane Fuel Cells.
Be the technical solution problem, solution of the present utility model is:
A kind of material filling type filtration unit that removes contained alkali mist in the hydrogen is provided, comprises the container that filler is housed, described filler is the metallic stuffing that aluminium or zinc are made; Container is established hydrogen inlet and hydrogen outlet.
In the utility model, this device comprises at least two containers that filler is housed, and by the pipeline serial or parallel connection.
In the utility model, described container is a tube container.
In the utility model, the hydrogen outlet of described container is provided with filter, and this filter is formed by aluminium powder or zinc powder compacting back sintering, and the micro-pore diameter of filter is between 0.01～1mm.
In the utility model, described metallic stuffing is wire or tinsel, perhaps the 3-D solid structure of the arbitrary shape that is formed by any one braiding in wire, the tinsel or arrangement.
In the utility model, described metallic stuffing is metallic microspheres, steel fiber or metal foam, and wherein metal foam is that voidage is 50%～98% porous material.
The utility model is that the hydrogen of will be drawn by device for producing hydrogen passes through the material filling type filtration unit based on the filter method of above-mentioned material filling type filtration unit, is filled with the metallic stuffing that aluminium or zinc are made in this filtration unit.When placed in-line container need be changed, remove the container of prime, the container of new clothes filler is connected as time final filter.
The utility model utilizes aluminium, the zinc characteristics for amphoteric metal, makes the reaction of alkali mist and aluminium or zinc produce hydrogen.
2Al+2H
2O+2NaOH=2NaAlO
2+3H
2
Zn+2H
2O+2NaOH=Na
2Zn(OH)
4+H
2
Its product NaAlO
2And Na
2Zn (OH)
4Be solid.The utility model reaches the purpose of dehumidifying and generation hydrogen, for fuel cell provides cleaning, purified hydrogen when eliminating the alkali mist.
Compared with prior art, the beneficial effects of the utility model are:
The filter unit can be gone here and there and take over to the strainer that the utility model provides in use arbitrarily, and to satisfy the needs of various uses, strainer also produces hydrogen when eliminating the alkali mist.As long as interim maintenance provides for simple replacement of the strainer of prime, new strainer is connected easy maintenance as inferior minor details strainer.Aluminum and zinc is quite cheap, can reduce cost greatly, realizes hydrogen cleaning cheaply.
Description of drawings
Fig. 1 is the hydrogen cleaning flow process and the filter apparatus configuration of the electrolytic hydrogen production of embodiment one.
Fig. 2 is the hydrogen cleaning flow process and the filter apparatus configuration of the preparing hydrogen by sodium borohydride hydrolysis of embodiment two.
Fig. 3 is the hydrogen cleaning flow process and the filter apparatus configuration of the big flow preparing hydrogen by sodium borohydride hydrolysis of embodiment three.
Reference numeral among Fig. 1 is: 101 electrolyzers, 102 prime strainers, 103 final filters, 104 metallic aluminium microballoons, 105 regularly arranged aluminium flake, 106 filters.
Reference numeral among Fig. 2 is: the three-dimensional structure that 201 sodium borohydride hydrolysis reactors, 202 prime strainers, 203 final filters, 204 metallic zinc fibers constitute, 205 foaming aluminium, 206 filters.
Reference numeral among Fig. 3 is: the three dimensional network structure of 301 sodium borohydride hydrolysis reactors, 302 prime strainers, 303 final filters, the braiding of 304 aluminium wires, 305 foaming aluminium, 306 filters, 307 final filters, 308 metallic aluminium microballoons.
Embodiment
Strainer in the utility model is applicable to the hydrogen cleaning method of electrolytic hydrogen production and preparing hydrogen by sodium borohydride hydrolysis, and following embodiment is described in detail the utility model.
Embodiment one: the hydrogen cleaning of electrolytic hydrogen production.
Among Fig. 1, electrolyzer 101, prime strainer 102, final filter 103 connect successively by pipeline, and the hydrogen outlet place of final filter 103 is provided with filter 106; Wherein, filling metal aluminium microballoon 104 in the prime strainer 102, the regularly arranged aluminium flake 105 of filling in the final filter 103.
The concrete steps of the hydrogen cleaning of electrolytic hydrogen production are:
(1) will import from the hydrogen of electrolyzer 101 bottom, be filled with metallic aluminium microballoon 104 in the prime strainer from prime strainer 102; When gas passed through prime strainer 102, alkali mist and metallic aluminium reacted:
2Al+2H
2O+2NaOH=2NaAlO
2+3H
2
(2) will import from final filter 103 bottoms from the gas at the top of prime strainer 102, filter once more, with thorough elimination alkali mist.Final filter 102 is filled with by regularly arranged aluminium flake 105.At last, the filter 106 by there being aluminium powder to fire is thoroughly purified, and the aperture of filter 106 is 0.01 mm.
Embodiment two: the hydrogen cleaning of preparing hydrogen by sodium borohydride hydrolysis.
Among Fig. 2, sodium borohydride hydrolysis reactor 201 links to each other with the bottom of the prime strainer 202 that three shunt filters are formed, and the top of prime strainer 202 links to each other with the bottom of final filter 203, and the hydrogen outlet place of final filter 203 is provided with filter 206.Wherein, the three-dimensional structure 204 that filling metal zinc fiber constitutes in the prime strainer 202, filling foaming aluminium 205 in the final filter 203.
The hydrogen cleaning flow process concrete steps of preparing hydrogen by sodium borohydride hydrolysis are:
(1) bottom of the prime strainer 202 that will form from 3 strainers from the hydrogen of sodium borohydride hydrolysis reactor 201 imports, and is filled with the three-dimensional structure 204 that the metallic zinc fiber constitutes in the prime strainer 202; When gas passed through prime strainer 202, alkali mist and metallic zinc reacted:
Zn+2H
2O+2NaOH=Na
2Zn(OH)
4+H
2
(2) will import from final filter 203 bottoms from the gas at the top of prime strainer 202, filter once more, with thorough elimination alkali mist.Final filter 203 is filled with foaming aluminium 205, and the voidage of foaming aluminium 206 is 50%.Alkali mist and metallic aluminium that prime strainer 202 does not remove react:
2Al+2H
2O+2NaOH=2NaAlO
2+3H
2
At last, the filter 206 by there being aluminium powder to fire is thoroughly purified.The aperture of filter 206 is 1 mm.
Embodiment three: big flow hydrogen cleaning.
Among Fig. 3, sodium borohydride hydrolysis reactor 301 links to each other with the bottom of the prime strainer 302 that two shunt filters are formed, the top of prime strainer 302 links to each other with the bottom of the inferior final filter 307 that two shunt filters are formed, the top of inferior final filter 307 links to each other with the bottom of final filter 303, and the hydrogen outlet place of final filter 303 is provided with filter 306.Wherein, filling metal aluminium microballoon 308 in the prime strainer 302, the three dimensional network structure 304 of filling aluminium wire braiding in the inferior final filter 307, filling foaming aluminium 305 in the final filter 303.
The hydrogen cleaning flow process concrete steps of the big flow hydrogen manufacturing of sodium borohydride hydrolysis are:
(1) bottom of the prime filter 23 02 that will form from 2 strainers from the hydrogen of sodium borohydride hydrolysis reactor 301 imports, and is filled with metallic aluminium microballoon 308 in the prime strainer; When gas passed through prime strainer 302, alkali mist and metallic aluminium reacted:
2Al+2H
2O+2NaOH=2NaAlO
2+3H
2
(2) will import from inferior final filter 307 bottoms from the gas at the top of prime strainer 302, filter once more, import from final filter 303 bottoms, filter once more, with thorough elimination alkali mist from the gas at the top of inferior final filter 307.Inferior final filter 307 is filled with the three dimensional network structure 304 by the aluminium wire braiding, and final filter 303 is filled with foaming aluminium 305, and the voidage of foaming aluminium is 98%.At last, the filter 306 by there being aluminium powder to fire is thoroughly purified.The aperture of filter 306 is 0.5 mm.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (6)
1. remove the material filling type filtration unit of contained alkali mist in the hydrogen, comprise the container that filler is housed, it is characterized in that, described filler is the metallic stuffing that aluminium or zinc are made; Container is established hydrogen inlet and hydrogen outlet.
2. material filling type filtration unit according to claim 1 is characterized in that, this device comprises at least two containers that filler is housed, and by the pipeline serial or parallel connection.
3. material filling type filtration unit according to claim 1 is characterized in that, described container is a tube container.
4. material filling type filtration unit according to claim 1 is characterized in that the hydrogen outlet of described container is provided with filter, and this filter is formed by aluminium powder or zinc powder compacting back sintering, and the micro-pore diameter of filter is between 0.01～1mm.
5. material filling type filtration unit according to claim 1 is characterized in that, described metallic stuffing is wire or tinsel, perhaps the 3-D solid structure that does not limit shape that is formed by any one braiding in wire, the tinsel or arrangement.
6. material filling type filtration unit according to claim 1 is characterized in that, described metallic stuffing is metallic microspheres, steel fiber or metal foam, and wherein metal foam is that voidage is 50%～98% porous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020667696 CN201971630U (en) | 2010-12-18 | 2010-12-18 | Filler type filtration device for desorbing alkali fume contained in hydrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020667696 CN201971630U (en) | 2010-12-18 | 2010-12-18 | Filler type filtration device for desorbing alkali fume contained in hydrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971630U true CN201971630U (en) | 2011-09-14 |
Family
ID=44576736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020667696 Expired - Fee Related CN201971630U (en) | 2010-12-18 | 2010-12-18 | Filler type filtration device for desorbing alkali fume contained in hydrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079508A (en) * | 2010-12-18 | 2011-06-01 | 浙江大学 | Filler filter device and method for removing alkali fog from hydrogen |
-
2010
- 2010-12-18 CN CN 201020667696 patent/CN201971630U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079508A (en) * | 2010-12-18 | 2011-06-01 | 浙江大学 | Filler filter device and method for removing alkali fog from hydrogen |
| CN102079508B (en) * | 2010-12-18 | 2012-12-26 | 浙江大学 | Filler filter device and method for removing alkali fog from hydrogen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20141218 |
|
| EXPY | Termination of patent right or utility model |