CN204198463U - A kind of continuum micromeehanics formula solid state electrolyte electric tank cathode system - Google Patents
A kind of continuum micromeehanics formula solid state electrolyte electric tank cathode system Download PDFInfo
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- CN204198463U CN204198463U CN201420520870.7U CN201420520870U CN204198463U CN 204198463 U CN204198463 U CN 204198463U CN 201420520870 U CN201420520870 U CN 201420520870U CN 204198463 U CN204198463 U CN 204198463U
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Abstract
Electrochemical advanced oxidation is the effective ways of process difficult for biological degradation organic waste water.But greater energy consumption is unanimously the bottleneck that puzzlement electrooxidation technology is applied to wastewater treatment.The utility model provides a kind of continuum micromeehanics formula solid state electrolyte electric tank cathode system, the fouling and clogging problem caused to solve negative electrode product alkali.Meanwhile, by adopting Ni base material to replace Pt, solve the high cost of cathode material, the final device obtaining a kind of low energy consumption high-efficiency electrochemicial oxidation organic wastewater with difficult degradation thereby.A kind of continuum micromeehanics formula solid state electrolyte electric tank cathode system described in this patent, comprises ion-exchange membrane and at the anolyte compartment of described ion-exchange membrane both sides and cathode compartment; Described anolyte compartment comprises anode end plate, porous anode propping material and anode catalyst layer; Described cathode compartment comprises cathode end plate and porous cathode catalytic material.
Description
Technical field
The utility model relates to field of environment protection water treatment industry technical field, especially relates to a kind of continuum micromeehanics formula solid state electrolyte electric tank cathode system.
Background technology
Many biochemical property of industrial waste waters are poor, comprise numerous inorganic and aromatic series hazardous and noxious substances such as a large amount of ammonia, cyanogen, phenols, pyridine, quinoline in addition, are difficult to biochemical degradation.Electrochemical advanced oxidation is the effective ways of this type of trade effluent of process, the free radical (as hydroxyl radical free radical direct oxidation) that electrochemical oxidation utilizes electrode surface to produce or the oxygenant (as hypochlorous acid indirect oxidation) generated, can the efficient oxidation degraded organic pollutants.In addition, negative electrode can under lower electromotive force, and in negative electrode generation electrical catalyze reduction water, proton produces hydrogen.But greater energy consumption is unanimously the bottleneck that puzzlement electrooxidation technology is applied to wastewater treatment, and due to the open by design of traditional electrolyte groove, negative electrode produces hydrogen and cannot effectively reclaim.Canadian Studies personnel adopt the electrolyzer based on solid polymer dielectric medium (SPE) Curve guide impeller effectively reduce interelectrode distance and reduce energy consumption, evade the cost increase problem that Xiang Yuanshui adds supporting electrolyte, and utilize proton exchange membrane to intercept the anode chamber and the cathode chamber, be effectively separated anode producing chlorine and negative electrode institute hydrogen producing (WO2012/167375).But negative electrode adopts the cathode catalysis layer containing Pt/C greatly to improve electrolyzer cost in this utility model.Because proton exchange membrane cannot avoid positively charged ion from anode to the infiltration of negative electrode, therefore, negative electrode, while generation proton reduction produces hydrogen, has a large amount of OH-ions and Na
+, Mg
2+, Ca
2+generation alkali (reaction formula) is combined Deng positively charged ion.Therefore, utilize on-liquid Cathode Design unavoidably in the fouling of negative electrode generation BS (as Ca (OH)
2, Mg (OH)
2, NaOH etc.), long-play must bring the blocking of cathode gas diffusion layer and the increase of cathodic polarization, energy consumption is increased and reduces cathode life.Therefore, need badly the aspect such as cathode construction, electrode materials of SPE " zero spacing " electrolyzer and operating method are improved.
Utility model content
The purpose of this utility model is to design a kind of novel continuum micromeehanics formula solid state electrolyte electric tank cathode system, solves the problem.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of continuum micromeehanics formula SPE electric tank cathode system, comprises ion-exchange membrane and at the anolyte compartment of described ion-exchange membrane both sides and cathode compartment;
Described anolyte compartment comprises anode end plate, porous anode propping material and anode catalyst layer, described anode end plate is provided with anode flow field groove towards the side of described ion-exchange membrane, the feed-water end of described anode flow field groove is provided with anode water-in, and the water side of described anode flow field groove is provided with anode water outlet; Described anode catalyst layer and the sealing of described porous anode propping material are arranged between described anode end plate and described ion-exchange membrane; Described anode catalyst layer between described ion-exchange membrane and described porous anode propping material, and is close on described porous anode propping material; Described porous anode propping material is provided with anode collector, and described anode collector sealing is stretched out outside described anode end plate and described ion-exchange membrane;
Described cathode compartment comprises cathode end plate and porous cathode catalytic material, described cathode end plate is provided with cathode flow field groove towards the side of described ion-exchange membrane, the feed-water end of described cathode flow field groove is provided with negative electrode water-in, and the water side of described cathode flow field groove is provided with negative electrode water outlet; Described porous cathode catalytic material sealing is arranged between described cathode end plate and described ion-exchange membrane; Described porous cathode catalytic material is provided with cathode current collector, and described cathode current collector sealing is stretched out outside described cathode end plate and described ion-exchange membrane; Described ion exchange membrane material is cationic exchange membrane.
Described porous anode propping material is corrosion resistant order number is 50-400 object wire establishment net, or be corrosion resistant porosity >40%, the expanded metal of aperture >1 micron, or the punch metal net being >1 × 2, corrosion resistant aperture millimeter;
Described anode catalyst layer is RuO
2-TiO
2, PbO
2, SnO
2-Sb
2o
3, Nb
2o
5-SnO
2, SnO
2-In
2o
3, IrO
2-Ta
2o
5, or rare-earth oxide/Sb
2o
5-SnO
2in one or more mixture;
Described corrosion resistant wire comprises tungsten filament, titanium silk, molybdenum filament or niobium silk.
Described corrosion resistant wire establishment net to be thickness the be titanium net of 300 microns-2000 microns; Or described corrosion resistant expanded metal is POROUS TITANIUM PLATE, the thickness of described POROUS TITANIUM PLATE is 500 microns-3000 microns, and porosity is greater than 40%; Described punch metal net is punching titanium metal net, and aperture is greater than 1 × 2 millimeter, thickness 1-2 millimeter.
Described cathode end plate is that nickel or stainless steel nickel plating are made;
The design of described cathode flow field groove is consistent with described anode flow field groove, is laterally or longitudinally snakelike, comb Installed groove arrangement, groove width 1-3 millimeter, groove depth 0.5-2.0 millimeter, and two or three flow path groove walks abreast setting, and flow field conduit terminates to water outlet from water-in;
Described porous cathode catalytic material is the cathode for hydrogen evolution electrocatalysis material be applicable in alkaline water electrolytic cell.
Described cathode for hydrogen evolution electrocatalysis material comprises Ni, Raney Ni, Ni-S, Ni-Mo, or Ni-Mo-S.
Described cathode compartment is closely connected with described anolyte compartment, and only intercepted separately by described ion-exchange membrane, the thickness of described ion exchange membrane material is 50 microns-150 microns
Described ion exchange membrane material is cationic exchange membrane or anion-exchange membrane.
Also comprise silicon sealing-ring, sealed by described silica gel sealing ring between described anode end plate and described ion-exchange membrane, also sealed by described silica gel sealing ring between described cathode end plate and described ion-exchange membrane.
The so-called SPE of the utility model, i.e. solid polymer electrolyte, solid polymer electrolyte.The utility model object is to provide a kind of based on solid state electrolyte " zero spacing " cathode material of electrolyzer and the Curve guide impeller of operation scheme, the fouling and clogging problem that the replacement of solution high cost cathode material and negative electrode produce alkali and cause, the final device obtaining a kind of low energy consumption high-efficiency electrochemicial oxidation organic wastewater with difficult degradation thereby.
The beneficial effects of the utility model can be summarized as follows:
Adopt Ni net to instead of the noble metal catalysts such as the Pt of negative electrode in SPE electrolyzer in the utility model, replace graphite endplates etc. with Ti cardinal extremity plate, significantly can reduce the cost of waste disposal plant.
Accompanying drawing explanation
Fig. 1 is the structural representation of the main apparent direction of the utility model SPE electrooxidation system
Fig. 2 is the stretch-out view of the utility model SPE electrooxidation system.
Wherein: 1. anode end plate 1,2. anode flow field groove 2; 3. silica gel sealing ring 3; 4. porous anode propping material 4; 5. anode catalyst layer 5; 6. anode collector 6; 7. ion-exchange membrane 7; 8. cathode current collector 8; 9. porous cathode catalytic material 9; 10. cathode flow field groove 10; 11. cathode end plate 11; 101. anode water-ins 101 (waste water); 102. anode water outlets 102 (process water); 201. negative electrode water-ins 201 (tap water); 202. negative electrode water outlets 202.
Embodiment
The technical problem solved to make the utility model, technical scheme and beneficial effect are clearly understood, below in conjunction with drawings and Examples, are further elaborated to the utility model.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
A kind of continuum micromeehanics formula solid state electrolyte electric tank cathode system as depicted in figs. 1 and 2, comprises ion-exchange membrane 7 and at the anolyte compartment of described ion-exchange membrane 7 both sides and cathode compartment; Described anolyte compartment comprises anode end plate 1, porous anode propping material 4 and anode catalyst layer 5, described anode end plate 1 is provided with anode flow field groove 2 towards the side of described ion-exchange membrane 7, the feed-water end of described anode flow field groove 2 is provided with anode water-in 101, and the water side of described anode flow field groove 2 is provided with anode water outlet 102; Described anode catalyst layer 5 and the sealing of described porous anode propping material 4 are arranged between described anode end plate 1 and described ion-exchange membrane 7; Described anode catalyst layer 5 between described ion-exchange membrane 7 and described porous anode propping material 4, and is close on described porous anode propping material 4; Described porous anode propping material 4 is provided with anode collector 6, and described anode collector 6 sealing is stretched out outside described anode end plate 1 and described ion-exchange membrane 7; Described cathode compartment comprises cathode end plate 11 and porous cathode catalytic material 9, described cathode end plate 11 is provided with cathode flow field groove 10 towards the side of described ion-exchange membrane 7, the feed-water end of described cathode flow field groove 10 is provided with negative electrode water-in 201, and the water side of described cathode flow field groove 10 is provided with negative electrode water outlet 202; Described porous cathode catalytic material 9 sealing is arranged between described cathode end plate 11 and described ion-exchange membrane 7; Described porous cathode catalytic material 9 is provided with cathode current collector 8, and described cathode current collector 8 sealing is stretched out outside described cathode end plate 11 and described ion-exchange membrane 7.
In the embodiment be more preferably, described porous sun propping material is corrosion resistant wire establishment net, and its order number is 50-400 order, and diameter wiry is 10-500 micron, and the thickness of wire cloth is 100 microns-1000 microns; Described anode catalyst layer 5 is RuO
2-TiO
2, PbO
2, SnO
2-Sb
2o
3, Nb
2o
5-SnO
2, SnO
2-In
2o
3, IrO
2-Ta
2o
5, or rare-earth oxide/Sb
2o
5-SnO
2in one or more mixture;
In the embodiment be more preferably, described corrosion resistant wire comprises tungsten filament, titanium silk, molybdenum filament or niobium silk.
In the embodiment be more preferably, described corrosion-resistant porous metal are POROUS TITANIUM PLATE, porosity >40%, aperture >1 micron.
In the embodiment be more preferably, described cathode end plate 11 is made for nickel or stainless steel nickel plating; Described cathode flow field groove 10 designs consistent with described anode flow field groove 2, for horizontal or longitudinally snakelike, Shu Installed groove arrangement, groove width 1-3 millimeter, groove depth 0.5-2.0 millimeter, two or three flow path groove is parallel to be arranged, and flow field conduit terminates to water outlet from water-in; Described porous cathode catalytic material 9 is for being applicable to the cathode for hydrogen evolution electrocatalysis material in alkaline water electrolytic cell.
In the embodiment be more preferably, described cathode for hydrogen evolution electrocatalysis material comprises Ni, Raney Ni, Ni-S, Ni-Mo, or Ni-Mo-S.
In the embodiment be more preferably, described cathode compartment is closely connected with described anolyte compartment, and only intercepted separately by described ion-exchange membrane 7, the thickness of described ion-exchange membrane 7 material is 50 microns-150 microns
In the embodiment be more preferably, described ion-exchange membrane 7 material is cationic exchange membrane 7 or anion-exchange membrane 7.
In the embodiment be more preferably, described continuum micromeehanics formula solid state electrolyte electric tank cathode system also comprises silicon sealing-ring, sealed by described silica gel sealing ring 3 between described anode end plate 1 and described ion-exchange membrane 7, also sealed by described silica gel sealing ring 3 between described cathode end plate 11 and described ion-exchange membrane 7.
In certain specific embodiment:
(1) in the utility model, anolyte compartment is made up of anode end plate 1, anode flow field groove 10, silica gel sealing ring 3, anode collector 6, porous anode propping material 4, anode catalyst layer 5, wherein porous sun propping material is the corrosion resistant wire establishment such as tungsten filament, titanium silk, molybdenum filament, niobium silk net, its order number is 50-400 order, diameter wiry is 10-500 micron, and the thickness of wire cloth is 100 microns-1000 microns; As with titanium foam net as anode support material, its thickness is about 300 microns-2000 microns; As done support material by POROUS TITANIUM PLATE, expanded metal (porosity >40%, aperture >1 micron); As done propping material with punch metal net, its >1 × 2 millimeter, aperture; Anode catalyst layer 5 is RuO
2-TiO
2, PbO
2, SnO
2-Sb
2o
3, Nb
2o
5-SnO
2, SnO
2-In
2o
3, IrO
2-Ta
2o
5, or rare-earth oxide/Sb
2o
5-SnO
2in one or more mixture.
(2), in the utility model, negative electrode is by cathode end plate 11, cathode flow field groove 10, silica gel sealing ring 3, porous cathode catalytic material 9, and cathode current collector 8 five part forms; Cathode end plate 11 is made for the material such as nickel or stainless steel nickel plating, and cathode flow field 10 designs consistent with anode flow field, is laterally or the snakelike groove arrangement of longitudinal direction, groove width 2-5 millimeter, groove depth 1-3 millimeter, and flow field conduit terminates to water outlet from water-in; Porous cathode catalytic material 9 for being applicable to the cathode for hydrogen evolution electrocatalysis material in alkaline water electrolytic cell, as Ni, Raney Ni, Ni-S, Ni-Mo, Ni-Mo-S etc.;
(3) cathode compartment of the utility model " zero spacing " electrolyzer is closely connected with anolyte compartment, only intercept separately by ion-exchange membrane 7, ion-exchange membrane 7 material used is cationic exchange membrane 7 (as Nafion film) or anion-exchange membrane 7, and the thickness of film is 50-150 micron (μm); On " zero spacing " electrolyzer to apply operating voltage be 2-4 volt, electric tank working current density is 1-20 milliampere/square centimeter;
(4) SPE anode electrolytic cell, negative plate respectively have a water-in in the utility model, water-in is connected with top, flow field bottom pole plate; SPE anode electrolytic cell, negative electrode respectively have a water outlet, and water outlet is located at pole plate upper side, are connected with flow field end.
Adopt Ni net to instead of the noble metal catalysts such as the Pt of negative electrode in SPE electrolyzer in the utility model, replace graphite endplates etc. with Ti cardinal extremity plate, significantly can reduce the cost of waste disposal plant.
The utility model is described in detail in preferred embodiment above by concrete; but those skilled in the art should be understood that; the utility model is not limited to the above embodiment; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a continuum micromeehanics formula solid state electrolyte electric tank cathode system, is characterized in that: comprise ion-exchange membrane and at the anolyte compartment of described ion-exchange membrane both sides and cathode compartment;
Described anolyte compartment comprises anode end plate, porous anode propping material and anode catalyst layer, described anode end plate is provided with anode flow field groove towards the side of described ion-exchange membrane, the feed-water end of described anode flow field groove is provided with anode water-in, and the water side of described anode flow field groove is provided with anode water outlet; Described anode catalyst layer and the sealing of described porous anode propping material are arranged between described anode end plate and described ion-exchange membrane; Described anode catalyst layer between described ion-exchange membrane and described porous anode propping material, and is close on described porous anode propping material; Described porous anode propping material is provided with anode collector, and described anode collector sealing is stretched out outside described anode end plate and described ion-exchange membrane;
Described cathode compartment comprises cathode end plate and porous cathode catalytic material, described cathode end plate is provided with cathode flow field groove towards the side of described ion-exchange membrane, the feed-water end of described cathode flow field groove is provided with negative electrode water-in, and the water side of described cathode flow field groove is provided with negative electrode water outlet; Described porous cathode catalytic material sealing is arranged between described cathode end plate and described ion-exchange membrane; Described porous cathode catalytic material is provided with cathode current collector, and described cathode current collector sealing is stretched out outside described cathode end plate and described ion-exchange membrane; Described ion exchange membrane material is cationic exchange membrane.
2. continuum micromeehanics formula solid state electrolyte electric tank cathode system according to claim 1, it is characterized in that: described porous anode propping material is corrosion resistant order number is 50-400 object wire establishment net, or be corrosion resistant porosity >40%, the expanded metal of aperture >1 micron, or the punch metal net being >1 × 2, corrosion resistant aperture millimeter;
Described anode catalyst layer is RuO
2-TiO
2, PbO
2, SnO
2-Sb
2o
3, Nb
2o
5-SnO
2, SnO
2-In
2o
3, IrO
2-Ta
2o
5, or rare-earth oxide/Sb
2o
5-SnO
2in one.
3. continuum micromeehanics formula solid state electrolyte electric tank cathode system according to claim 2, is characterized in that: described corrosion resistant wire comprises tungsten filament, titanium silk, molybdenum filament or niobium silk.
4. continuum micromeehanics formula solid state electrolyte electric tank cathode system according to claim 2, is characterized in that: described corrosion resistant wire establishment net to be thickness the be titanium net of 300 microns-2000 microns; Or described corrosion resistant expanded metal is POROUS TITANIUM PLATE, the thickness of described POROUS TITANIUM PLATE is 500 microns-3000 microns, and porosity is greater than 40%; Described punch metal net is punching titanium metal net, and aperture is greater than 1 × 2 millimeter, thickness 1-2 millimeter.
5. continuum micromeehanics formula solid state electrolyte electric tank cathode system according to claim 1, is characterized in that: described cathode end plate is that nickel or stainless steel nickel plating are made;
The design of described cathode flow field groove is consistent with described anode flow field groove, is laterally or longitudinally snakelike, comb Installed groove arrangement, groove width 1-3 millimeter, groove depth 0.5-2.0 millimeter, and two or three flow path groove walks abreast setting, and flow field conduit terminates to water outlet from water-in;
Described porous cathode catalytic material is the cathode for hydrogen evolution electrocatalysis material be applicable in alkaline water electrolytic cell.
6. continuum micromeehanics formula solid state electrolyte electric tank cathode system according to claim 5, is characterized in that: described cathode for hydrogen evolution electrocatalysis material selects Ni, Raney Ni, Ni-S, Ni-Mo or Ni-Mo-S.
7. continuum micromeehanics formula solid state electrolyte electric tank cathode system according to claim 1, it is characterized in that: described cathode compartment is closely connected with described anolyte compartment, only intercepted separately by described ion-exchange membrane, the thickness of described ion exchange membrane material is 50 microns-150 microns.
8. continuum micromeehanics formula solid state electrolyte electric tank cathode system according to claim 1, is characterized in that: described ion exchange membrane material is cationic exchange membrane or anion-exchange membrane.
9. continuum micromeehanics formula solid state electrolyte electric tank cathode system according to claim 1, it is characterized in that: also comprise silica gel sealing ring, sealed by described silica gel sealing ring between described anode end plate and described ion-exchange membrane, also sealed by described silica gel sealing ring between described cathode end plate and described ion-exchange membrane.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192950A (en) * | 2014-09-11 | 2014-12-10 | 北京今大禹环保技术有限公司 | Cathodic system of continuous water-inlet-type solid electrolyte electrolytic cell |
| CN105198047A (en) * | 2015-10-26 | 2015-12-30 | 浙江工业大学 | Electrochemical hydrogenation treatment method of fluoroarene-contaminated wastewater |
| CN105461023A (en) * | 2015-11-06 | 2016-04-06 | 北京航空航天大学 | Electrolytic tank apparatus using oxygen reduction cathode |
-
2014
- 2014-09-11 CN CN201420520870.7U patent/CN204198463U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192950A (en) * | 2014-09-11 | 2014-12-10 | 北京今大禹环保技术有限公司 | Cathodic system of continuous water-inlet-type solid electrolyte electrolytic cell |
| CN104192950B (en) * | 2014-09-11 | 2016-06-22 | 北京今大禹环保技术有限公司 | A kind of continuum micromeehanics formula solid electrolyte electric tank cathode system |
| CN105198047A (en) * | 2015-10-26 | 2015-12-30 | 浙江工业大学 | Electrochemical hydrogenation treatment method of fluoroarene-contaminated wastewater |
| CN105461023A (en) * | 2015-11-06 | 2016-04-06 | 北京航空航天大学 | Electrolytic tank apparatus using oxygen reduction cathode |
| WO2017076282A1 (en) * | 2015-11-06 | 2017-05-11 | 北京航空航天大学 | Electrolytic tank apparatus using oxygen reduction cathode |
| CN105461023B (en) * | 2015-11-06 | 2018-08-10 | 北京航空航天大学 | A kind of electrolytic cell assembly using oxygen reduction cathode |
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Address after: 100195 Beijing, Haidian District, West Mountain Creative Park, building four, floor three, floor 304, 305, 6 Patentee after: BEIJING JINDAYU ENVIRONMENT TECHNOLOGY CO., LTD. Address before: 100195 Beijing, Haidian District, West cedar Creative Park, building two, building 1, level 3 to level 4, 04 Patentee before: BEIJING JINDAYU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
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