WO1994026669B1 - A planar, flow-through, electric, double-layer capacitor and method of treating fluids with the capacitor - Google Patents
A planar, flow-through, electric, double-layer capacitor and method of treating fluids with the capacitorInfo
- Publication number
- WO1994026669B1 WO1994026669B1 PCT/US1994/005364 US9405364W WO9426669B1 WO 1994026669 B1 WO1994026669 B1 WO 1994026669B1 US 9405364 W US9405364 W US 9405364W WO 9426669 B1 WO9426669 B1 WO 9426669B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- capacitor
- activated carbon
- collectors
- flow
- electrical
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract 21
- 239000012530 fluid Substances 0.000 title claims abstract 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 30
- 239000000126 substance Substances 0.000 claims abstract 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract 2
- 230000002441 reversible Effects 0.000 claims abstract 2
- 239000011230 binding agent Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 2
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000006229 carbon black Substances 0.000 claims 1
- 238000005056 compaction Methods 0.000 claims 1
- 239000004020 conductor Substances 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 239000011888 foil Substances 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000000737 periodic Effects 0.000 claims 1
- 229920001568 phenolic resin Polymers 0.000 claims 1
- 239000005011 phenolic resin Substances 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- -1 polytetrafluoroethylene Polymers 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 1
- 239000011780 sodium chloride Substances 0.000 claims 1
Abstract
The object of the invention is to provide a flow-through, electric, double-layer capacitor providing for a high, steady rate of removal of ionic substances and amenable to commercial scale application and a method of treating fluids using the flow-through electric double-layer capacitor. The invention is a planar, flow-through, electric, double-layer capacitor comprising a separator (1) consisting in an electrically-insulating, porous, flow-through sheet, activated carbon layers (2, 2), each comprising a high specific surface area activated carbon as a main component, collectors (3, 3) disposed externally of the active carbon layers (2, 2), and retaining plates (4, 4) disposed externally of the collectors (3, 3). A fluid containing ionic substances is treated by passing the fluid through the planar, flow-through, electric, double-layer capacitor and repeating, in alternate cycles, application of a direct current constant voltage to collectors (3, 3) and short-circuiting or reversal of connection between collectors (3, 3).
Claims
AMENDED CLAIMS
[received by the International Bureau on 14 November 1994 (14.11.94); original claims 1-3 cancelled; new claims 4-17 added (3 pages)]
Claim 4. A planar, flow through, electric, double layer capacitor for the treating of an ionic-containing fluid, which capacitor comprises: a) an electrically-insulating, porous, flow-through separator sheet (1); b) activated carbon layers (2)(2), each comprising a high specific surface area of activated carbon and disposed externally on either side of the separator sheet; c) electrode collector layers (3)(3), each comprising electrically conductive material and disposed externally on either side of the activated carbon layers and in intimate electrical contact with each activated carbon layer to form an anode and cathode electrode;
d) retaining plates (4) (4) disposed externally of said electrical collectors to retain in uniform compaction the separator, activated carbon layers and collector layers together; e) inlet means (6) to permit the introduction of a fluid to be treated; f) outlet means (7) to permit the withdrawal of the treated fluid.
Claim 5. The capacitor of claim 4 which includes frame-shaped gaskets (5)(5) comprising electrically insulating material, said gaskets interposed between the said collectors (3)(3) and the retaining plates (4) (4).
Claim 6. The capacitor of claim 4 wherein the separator comprises a paper, a polymer, a fiber or a cloth material.
Claim 7. The capacitor of claim 4 wherein the activated carbon layers (2)(2) have a BET of not less than lOOOmVg-
Claim 8. The capacitor of claim 4 wherein the activated carbon layers (2)(2) comprise a porous sheet formed from a heat-treated mixture of powdery or granular activated carbon, a binder and a dispersing medium.
Claim 9. The capacitor of claim 8 wherein the said porous, formed sheet comprises activated carbon having a BET of not less than 1500m/9 and polytetrafluoroethylene, phenolic resin or carbon black or combinations thereof as a binder.
Claim 10. The capacitor of claim 4 wherein the electrical collectors have a portion thereof with flow- through orifices (3a).
Claim 11. The capacitor of claim 4 wherein the electrical collectors have outwardly extending, integral terminals (30) for connection to an electrical power source.
Claim 12. The capacitor of claim 4 wherein the electrical connectors (3)(3) comprise copper plates, aluminum plates, carbon-based or graphite foils.
13
Claim 13. The capacitor of claim 4 wherein the thickness of the activated carbon layers ranges from about 0.1mm to 3mm and the thickness of the electrical connector ranges from about 0.1mm to 0.5mm.
Claim 14. The capacitor of claim 4 which includes a direct current, constant voltage electrical power source connected to the electrical connectors to form an anode and a cathode, the power source having a voltage of about 0.5 to
5 volts.
Claim 15. The capacitor of claim 14 which includes means for the periodic short circuiting or reversal of the electrical connection to permit the desorbing and discharging of absorbed ions.
Claim 16. A method of treating a fluid containing an ionic substance which comprises: a) introducing the fluid into the inlet means of the capacitor of claim 1 while applying a direct current, constant voltage to said collectors (3)(3) to absorb ionic substances on the activated carbon layers; b) withdrawing a treated fluid from the outlet means; c) short circuiting or reversing periodically the electrical connectors (3)(3) of said capacitor to desorb ionic substances; and d) withdrawing said desorbed ionic substances from the outlet means.
Claim 17. The method of claim 15 wherein the fluid comprises an aqueous sodium chloride solution.
U
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/379,493 US5538611A (en) | 1993-05-17 | 1994-05-12 | Planar, flow-through, electric, double-layer capacitor and a method of treating liquids with the capacitor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5/139354 | 1993-05-17 | ||
| JP13935493A JP3302443B2 (en) | 1993-05-17 | 1993-05-17 | Flat-plate flow-through type electric double layer capacitor and liquid processing method using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1994026669A1 WO1994026669A1 (en) | 1994-11-24 |
| WO1994026669B1 true WO1994026669B1 (en) | 1995-01-12 |
Family
ID=15243380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/005364 WO1994026669A1 (en) | 1993-05-17 | 1994-05-12 | A planar, flow-through, electric, double-layer capacitor and method of treating fluids with the capacitor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3302443B2 (en) |
| WO (1) | WO1994026669A1 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5620597A (en) * | 1990-04-23 | 1997-04-15 | Andelman; Marc D. | Non-fouling flow-through capacitor |
| US5425858A (en) * | 1994-05-20 | 1995-06-20 | The Regents Of The University Of California | Method and apparatus for capacitive deionization, electrochemical purification, and regeneration of electrodes |
| GB2332210B (en) * | 1997-12-10 | 2000-07-19 | Toshiba Kk | Processing method of waste water and processing apparatus thereof |
| WO2002029836A1 (en) | 2000-10-02 | 2002-04-11 | Andelman Marc D | Fringe-field capacitor electrode for electrochemical device |
| JP2003039070A (en) * | 2001-07-27 | 2003-02-12 | Kurita Water Ind Ltd | Device and method for producing desalted water |
| CN101291880B (en) | 2005-09-27 | 2011-09-07 | 棚氏处理有限公司 | Ion concentration regulation method and ion concentration regulation apparatus |
| JP2010517746A (en) * | 2007-02-01 | 2010-05-27 | ゼネラル・エレクトリック・カンパニイ | Desalination method and apparatus including supercapacitor electrode |
| CN101980968B (en) | 2008-03-25 | 2012-10-31 | 棚氏处理有限公司 | Portable hardness regulating device for regulating hardness of potable water |
| CN101615512B (en) | 2008-06-24 | 2013-02-06 | 通用电气公司 | Super-capacitor device and manufacturing method thereof |
| GB0822816D0 (en) * | 2008-12-15 | 2009-01-21 | Enpar Technologies Inc | Electrostatic water filtration (esf) system and methid |
| WO2010150534A1 (en) * | 2009-06-23 | 2010-12-29 | クラレケミカル株式会社 | Flow-through capacitor, method for producing deionized water, and device for producing deionized water |
| GB0921953D0 (en) * | 2009-12-16 | 2010-02-03 | Enpar Technologies Inc | Flow-through electro static water filter |
| CN102060359B (en) * | 2010-11-12 | 2012-02-08 | 北京化工大学 | Capacitive desalination module |
| NL2007600C2 (en) * | 2011-10-14 | 2013-04-16 | Voltea Bv | Method of producing an apparatus for removal of ions and apparatus for removal of ions. |
| CA2880444C (en) * | 2012-08-03 | 2018-01-02 | Mitsubishi Heavy Industries Mechatronics Systems, Ltd. | De-ionization treatment device and method for operating de-ionization treatment device |
| JP5622294B2 (en) * | 2012-12-26 | 2014-11-12 | 和弘 林 | Mass transfer process between electrodes in electrolyte is accelerated by voltage application |
| JP2016135459A (en) * | 2013-05-15 | 2016-07-28 | シャープ株式会社 | Functional water generator |
| EP3037389B1 (en) | 2014-12-24 | 2018-05-16 | IDROPAN DELL'ORTO DEPURATORI S.r.l. | Apparatus for purifying a fluid and method for the attainment thereof |
| CN107635639B (en) * | 2015-05-20 | 2019-04-09 | 埃迪普·巴伊拉姆 | Production method |
| TR201506030A1 (en) * | 2015-05-20 | 2016-12-21 | Edip Bayram | A water purification system |
| JP6395952B1 (en) | 2016-11-02 | 2018-09-26 | 三菱電機株式会社 | Water treatment apparatus and water treatment method |
| WO2018179717A1 (en) | 2017-03-28 | 2018-10-04 | 三菱電機株式会社 | Water treatment device, water treatment system, method for assembling water treatment device, and water treatment method |
| JPWO2020039676A1 (en) * | 2018-08-23 | 2021-08-12 | 株式会社寿ホールディングス | Water treatment equipment and manufacturing method of ion concentration adjusted water |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658674A (en) * | 1966-02-28 | 1972-04-25 | Standard Oil Co Ohio | Process for demineralization of water |
| US5200068A (en) * | 1990-04-23 | 1993-04-06 | Andelman Marc D | Controlled charge chromatography system |
| US5192432A (en) * | 1990-04-23 | 1993-03-09 | Andelman Marc D | Flow-through capacitor |
-
1993
- 1993-05-17 JP JP13935493A patent/JP3302443B2/en not_active Expired - Fee Related
-
1994
- 1994-05-12 WO PCT/US1994/005364 patent/WO1994026669A1/en active Application Filing
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