CN102306812A - Method for recycling electrolyte substrate waste material of molten carbonate fuel cell - Google Patents
Method for recycling electrolyte substrate waste material of molten carbonate fuel cell Download PDFInfo
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- CN102306812A CN102306812A CN201110257157A CN201110257157A CN102306812A CN 102306812 A CN102306812 A CN 102306812A CN 201110257157 A CN201110257157 A CN 201110257157A CN 201110257157 A CN201110257157 A CN 201110257157A CN 102306812 A CN102306812 A CN 102306812A
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- electrolyte plate
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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
- Y02E60/50—Fuel cells
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Abstract
The invention discloses a method for recycling an electrolyte substrate waste material of a molten carbonate fuel cell. The method comprises the following steps of: (1) drying the electrolyte substrate waste material in a drying oven for 5 to 10 hours, and volatilizing an organic solvent in an electrolyte substrate; (2) cutting the electrolyte substrate waste material into fragments, adding a proper amount of absolute ethanol, and soaking for 5 to 10 hours; (3) supplementing an organic solvent of which the component and the mass are the same as those of the organic solvent volatilized from the electrolyte substrate in the step (1), and performing ball milling; and (4) after the ball milling is finished, performing vacuum pumping and the like on the obtained slurry, performing curtain coating to prepare a membrane, and thus obtaining a new electrolyte substrate which can be utilized. By the method, the substrate waste material is effectively utilized, energy sources are saved, and environmental pollution is reduced.
Description
Technical field
The invention belongs to the molten carbonate fuel cell technical field, particularly a kind of recovery method of molten carbonate fuel cell electrolyte substrate waste material.
Background technology
Molten carbonate fuel cell is a kind of TRT that the chemical energy of fuel is directly become electric energy without burning and with the electrochemical reaction mode; Has the generating efficiency height; Pollutant emission is low, but the advantage of modular arrangement is one of the forms of electricity generation in following distributed cleaning power station.
The elementary cell of molten carbonate fuel cell is made up of negative electrode, electrolyte and substrate and anode; Electrolyte plate is one of the most key core component that constitutes MCFC; In battery, play effects such as electronic isolation, ionic conduction, choke sealing, just seeming when therefore preparing electrolyte plate is even more important.Yet; In concrete experimental study; Especially in the powerful molten carbonate fuel cell assembling process of large tracts of land; Owing to will the electrolyte plate that make be carried out cutting according to test requirements document, and substrate prepares the waste product that produces in the process, will produce the waste material of a lot of electrolyte plate like this.These waste materials generally can sinter LiAlO in high temperature furnace
2Powder utilizes again, not only power consumption but also environment caused certain pollution.
Summary of the invention
In order to overcome the deficiency that above-mentioned prior art exists, the object of the present invention is to provide a kind of recovery method that melts carbonate fuel cell electrolyte substrate waste material, realized effectively utilizing substrate waste material, energy savings and reduced pollution environment.
In order to achieve the above object, the technical scheme that the present invention adopted is:
A kind of recovery method that melts carbonate fuel cell electrolyte substrate waste material, step is following:
Step 1:, the organic solvent in the electrolyte plate is vapored away with electrolyte plate waste material in drying box dry 5～10 hours;
Step 2: the fragment that the electrolyte plate waste material that will vapor away organic solvent cuts into the ball grinder of packing into is packed in the ball grinder, adds the fragment 5～10 hours that absolute ethyl alcohol soaks the electrolyte plate waste material in the ball grinder, realizes the dissolving of electrolyte plate waste material;
Step 3: preparation is with the composition of the organic solvent that vapors away in the electrolyte plate in the step 1 and the organic solvent of uniform quality; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 12～18 hours, the rotating speed of ball milling is 350～400r/min;
Step 4: ball milling obtains slurry after finishing, and the slurry that obtains is vacuumized handle the back casting film, promptly obtains the new electrolyte plate that can utilize.
Require the ball grinder sealing in the realization electrolyte plate waste material course of dissolution of described step 2.
Described electrolyte plate waste material is melted carbonate fuel cell electrolyte salt sheet and substitutes.
In the step 1 of the present invention, with electrolyte plate waste material in drying box dry 5～10 hours, with the organic solvent in the substrate and vapor away, so that the calculating of follow-up additive addition; In the step 2, the electrolyte plate waste material is cut into fragment, so that the organic principle of substrate dissolves, in course of dissolution, guarantee the ball grinder sealing in absolute ethyl alcohol, preventing that ethanol from vaporing away influences solute effect; Preparation is with the composition of the organic solvent that vapors away in the electrolyte plate in the step 1 and the organic solvent of uniform quality; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 12～18 hours, the rotating speed of ball milling is 350～400r/min; In the step 4; The slurry that ball milling obtains carries out casting film after need passing through and processing such as vacuumizing, and the evaporation rate of the strict control of film-forming process Chinese medicine solvent makes solvent slowly volatilization in the atmosphere of a relative saturation; Thereby guarantee that the substrate that makes does not have crackle, better performances.The method of the recovery substrate that the present invention adopts is simple, and the substrate waste material has been obtained utilizing fully again, has reduced the cost of molten carbonate fuel cell, reduces its problem such as pollution to environment.
Embodiment
Below in conjunction with embodiment the present invention is done more detailed explanation.
Embodiment 1
Melt the recovery method of carbonate fuel cell electrolyte substrate waste material, step is following:
Step 1:, the organic solvent in the electrolyte plate is vapored away with electrolyte plate waste material in drying box dry 6 hours;
Step 2: the fragment that the electrolyte plate waste material that will vapor away organic solvent cuts into the ball grinder of packing into is packed in the ball grinder; Add absolute ethyl alcohol in the ball grinder and soak the fragment 6 hours of electrolyte plate waste material; Realize the dissolving of electrolyte plate waste material, realize requiring in the electrolyte plate waste material course of dissolution ball grinder sealing;
Step 3: preparation is with the composition of the organic solvent that vapors away in the electrolyte plate in the step 1 and the organic solvent of uniform quality; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 13 hours, the rotating speed of ball milling is 360r/min;
Step 4: ball milling obtains slurry after finishing, and the slurry that obtains is vacuumized handle the back casting film, promptly obtains the new electrolyte plate that can utilize.
Embodiment 2
Melt the recovery method of carbonate fuel cell electrolyte substrate waste material, step is following:
Step 1:, the organic solvent in the electrolyte plate is vapored away with electrolyte plate waste material in drying box dry 7 hours;
Step 2: the fragment that the electrolyte plate waste material that will vapor away organic solvent cuts into the ball grinder of packing into is packed in the ball grinder; Add absolute ethyl alcohol in the ball grinder and soak the fragment 7 hours of electrolyte plate waste material; Realize the dissolving of electrolyte plate waste material, realize requiring in the electrolyte plate waste material course of dissolution ball grinder sealing;
Step 3: preparation is with the consistent organic solvent of the one-tenth component of the organic solvent that vapors away in the electrolyte plate in the step 1; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 15 hours, the rotating speed of ball milling is 370r/min;
Step 4: ball milling obtains slurry after finishing, and the slurry that obtains is vacuumized handle the back casting film, promptly obtains the new electrolyte plate that can utilize.
Embodiment 3
Melt the recovery method of carbonate fuel cell electrolyte substrate waste material, step is following:
Step 1:, the organic solvent in the electrolyte plate is vapored away with electrolyte plate waste material in drying box dry 9 hours;
Step 2: the fragment that the electrolyte plate waste material that will vapor away organic solvent cuts into the ball grinder of packing into is packed in the ball grinder; Add absolute ethyl alcohol in the ball grinder and soak the fragment 9 hours of electrolyte plate waste material; Realize the dissolving of electrolyte plate waste material, realize requiring in the electrolyte plate waste material course of dissolution ball grinder sealing;
Step 3: preparation is with the composition of the organic solvent that vapors away in the electrolyte plate in the step 1 and the organic solvent of uniform quality; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 17 hours, the rotating speed of ball milling is 390r/min;
Step 4: ball milling obtains slurry after finishing, and the slurry that obtains is vacuumized handle the back casting film, promptly obtains the new electrolyte plate that can utilize.
Claims (6)
1. recovery method that melts carbonate fuel cell electrolyte substrate waste material is characterized in that step is following:
Step 1:, the organic solvent in the electrolyte plate is vapored away with electrolyte plate waste material in drying box dry 5～10 hours;
Step 2: the fragment that the electrolyte plate waste material that will vapor away organic solvent cuts into the ball grinder of packing into is packed in the ball grinder, adds the fragment 5～10 hours that absolute ethyl alcohol soaks the electrolyte plate waste material in the ball grinder, realizes the dissolving of electrolyte plate waste material;
Step 3: preparation is with the composition of the organic solvent that vapors away in the electrolyte plate in the step 1 and the organic solvent of uniform quality; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 12～18 hours, the rotating speed of ball milling is 350～400r/min;
Step 4: ball milling obtains slurry after finishing, and the slurry that obtains is vacuumized handle the back casting film, promptly obtains the new electrolyte plate that can utilize.
2. the recovery method that melts carbonate fuel cell electrolyte substrate waste material according to claim 1 is characterized in that, requires the ball grinder sealing in the realization electrolyte plate waste material course of dissolution of described step 2.
3. the recovery method that melts carbonate fuel cell electrolyte substrate waste material according to claim 1 is characterized in that step is following:
Step 1:, the organic solvent in the electrolyte plate is vapored away with electrolyte plate waste material in drying box dry 6 hours;
Step 2: the fragment that the electrolyte plate waste material that will vapor away organic solvent cuts into the ball grinder of packing into is packed in the ball grinder; Add absolute ethyl alcohol in the ball grinder and soak the fragment 6 hours of electrolyte plate waste material; Realize the dissolving of electrolyte plate waste material, realize requiring in the electrolyte plate waste material course of dissolution ball grinder sealing;
Step 3: preparation is with the composition of the organic solvent that vapors away in the electrolyte plate in the step 1 and the organic solvent of uniform quality; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 13 hours, the rotating speed of ball milling is 360r/min;
Step 4: ball milling obtains slurry after finishing, and the slurry that obtains is vacuumized handle the back casting film, promptly obtains the new electrolyte plate that can utilize.
4. the recovery method that melts carbonate fuel cell electrolyte substrate waste material according to claim 1 is characterized in that step is following:
Step 1:, the organic solvent in the electrolyte plate is vapored away with electrolyte plate waste material in drying box dry 7 hours;
Step 2: the fragment that the electrolyte plate waste material that will vapor away organic solvent cuts into the ball grinder of packing into is packed in the ball grinder; Add absolute ethyl alcohol in the ball grinder and soak the fragment 7 hours of electrolyte plate waste material; Realize the dissolving of electrolyte plate waste material, realize requiring in the electrolyte plate waste material course of dissolution ball grinder sealing;
Step 3: preparation is with the composition of the organic solvent that vapors away in the electrolyte plate in the step 1 and the organic solvent of uniform quality; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 15 hours, the rotating speed of ball milling is 370r/min;
Step 4: ball milling obtains slurry after finishing, and the slurry that obtains is vacuumized handle the back casting film, promptly obtains the new electrolyte plate that can utilize.
5. the recovery method that melts carbonate fuel cell electrolyte substrate waste material according to claim 1 is characterized in that step is following:
Step 1:, the organic solvent in the electrolyte plate is vapored away with electrolyte plate waste material in drying box dry 9 hours;
Step 2: the fragment that the electrolyte plate waste material that will vapor away organic solvent cuts into the ball grinder of packing into is packed in the ball grinder; Add absolute ethyl alcohol in the ball grinder and soak the fragment 9 hours of electrolyte plate waste material; Realize the dissolving of electrolyte plate waste material, realize requiring in the electrolyte plate waste material course of dissolution ball grinder sealing;
Step 3: preparation is with the composition of the organic solvent that vapors away in the electrolyte plate in the step 1 and the organic solvent of uniform quality; This organic solvent is replenished the electrolyte plate waste material that adds after dissolving form the electrolyte plate mixture; This electrolyte plate mixture is placed on carried out ball milling in the ball mill 17 hours, the rotating speed of ball milling is 390r/min;
Step 4: ball milling obtains slurry after finishing, and the slurry that obtains is vacuumized handle the back casting film, promptly obtains the new electrolyte plate that can utilize.
6. the recovery method of fused carbonate fuel electrolyte plate waste material according to claim 1 is characterized in that described electrolyte plate waste material is melted carbonate fuel cell electrolyte salt sheet and substitutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102571579A CN102306812B (en) | 2011-09-01 | 2011-09-01 | Method for recycling electrolyte substrate waste material of molten carbonate fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102571579A CN102306812B (en) | 2011-09-01 | 2011-09-01 | Method for recycling electrolyte substrate waste material of molten carbonate fuel cell |
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| CN102306812A true CN102306812A (en) | 2012-01-04 |
| CN102306812B CN102306812B (en) | 2013-06-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909276A (en) * | 2021-03-12 | 2021-06-04 | 华能国际电力股份有限公司 | Method for recovering water-based molten carbonate fuel cell diaphragm waste material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1770502A (en) * | 2005-09-15 | 2006-05-10 | 上海交通大学 | Method for preparing melting carbonate fuel cell membrane using water-based flow casting technique |
| CN101071872A (en) * | 2007-06-07 | 2007-11-14 | 上海交通大学 | Integrated preparing method for molten carbonate fuel cell electrolyte membrane |
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- 2011-09-01 CN CN2011102571579A patent/CN102306812B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1770502A (en) * | 2005-09-15 | 2006-05-10 | 上海交通大学 | Method for preparing melting carbonate fuel cell membrane using water-based flow casting technique |
| CN101071872A (en) * | 2007-06-07 | 2007-11-14 | 上海交通大学 | Integrated preparing method for molten carbonate fuel cell electrolyte membrane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909276A (en) * | 2021-03-12 | 2021-06-04 | 华能国际电力股份有限公司 | Method for recovering water-based molten carbonate fuel cell diaphragm waste material |
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Application publication date: 20120104 Assignee: Huaneng Group Technology Innovation Center Assignor: China Huaneng Group Clean Energy Technology Research Institute Co., Ltd. Contract record no.: 2014990000566 Denomination of invention: Method for recycling electrolyte substrate waste material of molten carbonate fuel cell Granted publication date: 20130605 License type: Exclusive License Record date: 20140721 |
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