CN102079508A - Filler filter device and method for removing alkali fog from hydrogen - Google Patents
Filler filter device and method for removing alkali fog from hydrogen Download PDFInfo
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- CN102079508A CN102079508A CN2010105948303A CN201010594830A CN102079508A CN 102079508 A CN102079508 A CN 102079508A CN 2010105948303 A CN2010105948303 A CN 2010105948303A CN 201010594830 A CN201010594830 A CN 201010594830A CN 102079508 A CN102079508 A CN 102079508A
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- filter
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- filler
- container
- filtration unit
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- 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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Abstract
The invention relates to a filler filter and a filter method, and aims to provide a filler filter device and a filter method for removing alkali fog from hydrogen. The device comprises a container filled with a filler, wherein the filler is a metal filler made of aluminum or zinc; and the container is provided with a hydrogen inlet and a hydrogen outlet. The filter method comprises that the hydrogen led out by a hydrogen production device passes through the filler filter device. When the filter provided by the invention is used, filter units can be randomly connected in series or in parallel to meet the requirements of various purposes; and when the filter eliminates the alkali fog, the hydrogen is produced. For the periodic maintenance, the filter of the most front stage is replaced, and the new filter serving as a secondary tail filter is connected, so the maintenance is simple and convenient. The aluminum and the zinc are quite cheap, so the cost can be greatly reduced, and low-cost hydrogen purification can be realized.
Description
Technical field
The present invention relates to a kind of material filling type strainer and filter method, more particularly, the present invention relates to utilize the reaction of alkali mist and metallic aluminium or zinc, eliminate the alkali mist that produces in electrolytic hydrogen production or the preparing hydrogen by sodium borohydride hydrolysis process, a kind of filtration unit and the method for 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.Patent of invention (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 invention 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 patent of invention (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.
Summary of the invention
The technical problem to be solved in the present invention 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 and the filter method of cleaning, purified hydrogen is provided for Proton Exchange Membrane Fuel Cells.
Be the technical solution problem, solution of the present invention 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.
Among the present invention, this device comprises at least two containers that filler is housed, and by the pipeline serial or parallel connection.
Among the present invention, described container is a tube container.
Among the present invention, 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.
Among the present invention, 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.
Among the present invention, described metallic stuffing is metallic microspheres, steel fiber or metal foam, and wherein metal foam is that voidage is 50%～98% porous material.
Further, the present invention also provides a kind of material filling type filter method that removes contained alkali mist in the hydrogen, is that the hydrogen of will be drawn by device for producing hydrogen passes through the material filling type filtration unit, is filled with the metallic stuffing that aluminium or zinc are made in this filtration unit.
Among the present invention, at least two containers that filler is housed are set in filtration unit, each container is in series or in parallel with each other.
Among the present invention, 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.
Among the present invention, comprise also making the step of hydrogen by filter at last that this filter is formed by aluminium powder or zinc powder compacting back sintering, the micro-pore diameter of filter is between 0.01～1mm.
The present invention 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 present invention 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 invention has the beneficial effects as follows: the filter unit can be gone here and there and take over to strainer provided by the invention 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 among the present invention is applicable to the hydrogen cleaning method of electrolytic hydrogen production and preparing hydrogen by sodium borohydride hydrolysis, and following embodiment describes the present invention.
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 embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (10)
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 of the arbitrary 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.
7. a material filling type filter method that removes contained alkali mist in the hydrogen is that the hydrogen of will be drawn by device for producing hydrogen passes through the material filling type filtration unit, is filled with the metallic stuffing that aluminium or zinc are made in this filtration unit.
8. filter method according to claim 7 is characterized in that, at least two containers that filler is housed are set in filtration unit, and each container is in series or in parallel with each other.
9. filter method according to claim 8 is characterized in that, when placed in-line container need be changed, removes the container of prime, and the container of new clothes filler is connected as time final filter.
10. according to the filter method of claim 7 or 8 described in any one, it is characterized in that, also comprise making the step of hydrogen by filter at last that this filter is formed by aluminium powder or zinc powder compacting back sintering, the micro-pore diameter of filter is between 0.01～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010594830 CN102079508B (en) | 2010-12-18 | 2010-12-18 | Filler filter device and method for removing alkali fog from hydrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010594830 CN102079508B (en) | 2010-12-18 | 2010-12-18 | Filler filter device and method for removing alkali fog from hydrogen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102079508A true CN102079508A (en) | 2011-06-01 |
| CN102079508B CN102079508B (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010594830 Expired - Fee Related CN102079508B (en) | 2010-12-18 | 2010-12-18 | Filler filter device and method for removing alkali fog from hydrogen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102079508B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121663A (en) * | 2011-11-18 | 2013-05-29 | 扬光绿能股份有限公司 | Hydrogen generating equipment |
| CN110294457A (en) * | 2018-03-23 | 2019-10-01 | 株式会社东芝 | Washer, hydrogen producing apparatus and power supply system |
| CN110846677A (en) * | 2019-12-06 | 2020-02-28 | 徐州中科氢量医学科技有限公司 | Equipment for producing hydrogen by electrolysis |
| CN113422091A (en) * | 2021-06-18 | 2021-09-21 | 郑州佛光发电设备有限公司 | Combustion hydrogen elimination system for metal-air battery |
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| US20070169412A1 (en) * | 2006-01-26 | 2007-07-26 | Georgia Tech Research Corporation | Sulfur- and alkali-tolerant catalyst |
| CN201082365Y (en) * | 2007-06-13 | 2008-07-09 | 深圳市宝安区西乡镇臣田唐锋电器厂 | Device for removing 'alkali mist' generated during hydrogen and oxygen production by electrolyzing method |
| JP2009120435A (en) * | 2007-11-14 | 2009-06-04 | Toyota Motor Corp | Filter device for removing impurity from hydrogen gas |
| CN101549855A (en) * | 2008-03-31 | 2009-10-07 | 汉能科技有限公司 | Alkali-removing method used for hydrogen production by borohydride |
| CN201971630U (en) * | 2010-12-18 | 2011-09-14 | 浙江大学 | Filler type filtration device for desorbing alkali fume contained in hydrogen |
-
2010
- 2010-12-18 CN CN 201010594830 patent/CN102079508B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070169412A1 (en) * | 2006-01-26 | 2007-07-26 | Georgia Tech Research Corporation | Sulfur- and alkali-tolerant catalyst |
| CN201082365Y (en) * | 2007-06-13 | 2008-07-09 | 深圳市宝安区西乡镇臣田唐锋电器厂 | Device for removing 'alkali mist' generated during hydrogen and oxygen production by electrolyzing method |
| JP2009120435A (en) * | 2007-11-14 | 2009-06-04 | Toyota Motor Corp | Filter device for removing impurity from hydrogen gas |
| CN101549855A (en) * | 2008-03-31 | 2009-10-07 | 汉能科技有限公司 | Alkali-removing method used for hydrogen production by borohydride |
| CN201971630U (en) * | 2010-12-18 | 2011-09-14 | 浙江大学 | Filler type filtration device for desorbing alkali fume contained in hydrogen |
Non-Patent Citations (2)
| Title |
|---|
| 《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅰ辑》 20070515 姜斌 粉末冶金-添加造孔剂法制备开孔泡沫铝及其性能研究 , 第5期 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121663A (en) * | 2011-11-18 | 2013-05-29 | 扬光绿能股份有限公司 | Hydrogen generating equipment |
| CN110294457A (en) * | 2018-03-23 | 2019-10-01 | 株式会社东芝 | Washer, hydrogen producing apparatus and power supply system |
| CN110294457B (en) * | 2018-03-23 | 2023-02-21 | 株式会社东芝 | Scrubber, hydrogen production apparatus, and power supply system |
| CN110846677A (en) * | 2019-12-06 | 2020-02-28 | 徐州中科氢量医学科技有限公司 | Equipment for producing hydrogen by electrolysis |
| CN113422091A (en) * | 2021-06-18 | 2021-09-21 | 郑州佛光发电设备有限公司 | Combustion hydrogen elimination system for metal-air battery |
| CN113422091B (en) * | 2021-06-18 | 2023-05-26 | 郑州佛光发电设备股份有限公司 | Combustion dehydrogenation system for metal-air battery |
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| Publication number | Publication date |
|---|---|
| CN102079508B (en) | 2012-12-26 |
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