CN114517301A - Method and device for producing hydrogen by electrolyzing seawater and collecting carbon dioxide - Google Patents
Method and device for producing hydrogen by electrolyzing seawater and collecting carbon dioxide Download PDFInfo
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- CN114517301A CN114517301A CN202210020160.7A CN202210020160A CN114517301A CN 114517301 A CN114517301 A CN 114517301A CN 202210020160 A CN202210020160 A CN 202210020160A CN 114517301 A CN114517301 A CN 114517301A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 75
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 75
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000013535 sea water Substances 0.000 title claims abstract description 45
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 21
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 45
- 239000012528 membrane Substances 0.000 claims abstract description 18
- 239000000243 solution Substances 0.000 claims abstract description 12
- 239000012670 alkaline solution Substances 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 7
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- 150000002500 ions Chemical class 0.000 claims description 32
- 239000013505 freshwater Substances 0.000 claims description 26
- 238000006386 neutralization reaction Methods 0.000 claims description 21
- 239000003546 flue gas Substances 0.000 claims description 20
- 238000005341 cation exchange Methods 0.000 claims description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 230000001502 supplementing effect Effects 0.000 claims description 12
- 239000003011 anion exchange membrane Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 150000001450 anions Chemical class 0.000 claims description 6
- 150000001768 cations Chemical class 0.000 claims description 6
- -1 hydrogen ions Chemical class 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 239000003929 acidic solution Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 238000010612 desalination reaction Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000003204 osmotic effect Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 1
- 125000001453 quaternary ammonium group Chemical group 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 14
- 230000008859 change Effects 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 238000005381 potential energy Methods 0.000 abstract description 3
- 230000008929 regeneration Effects 0.000 abstract description 3
- 238000011069 regeneration method Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/50—Processes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
- C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a method and a device for combining seawater electrolysis hydrogen production with carbon dioxide capture, wherein electrolytes in seawater are fully utilized to generate acid and alkali solutions under the reasonable layout of a cation-anion membrane, the acid solution generated by an anode environment is utilized to neutralize after the alkaline solution absorbs carbon dioxide, and then the carbon dioxide is released, the carbon dioxide capture is realized, and the potential energy of solution change in the electrolysis process is fully utilized; the generation of green energy hydrogen is accompanied in the electrolysis process, and the input of energy in the regeneration process is reasonably utilized.
Description
Technical Field
The invention relates to a method and a device for capturing carbon dioxide, in particular to a method and a device for capturing carbon dioxide while electrolyzing seawater, belonging to the technical field of environment-friendly gas treatment.
Background
With the development of the world industrial economy, resource and environmental problems caused by carbon emissions have attracted extensive worldwide attention, and carbon dioxide has now been proven to be a major cause of global warming. To cope with global climate change, reducing carbon emissions has become a new consensus worldwide and a "new norm" for the world economy. Meanwhile, along with the development of hydrogen energy, the technology of hydrogen production by water electrolysis also becomes one of the main ways of obtaining hydrogen, and meanwhile, 12 billion people live in water resource-deficient areas worldwide, and the shortage of fresh water resources is also a big problem faced by people worldwide.
However, the existing carbon dioxide capture process is complex and has severe applicable conditions, and meanwhile, a large amount of energy supplement in the regeneration process is one of the reasons for restricting the development of the carbon capture technology; meanwhile, the hydrogen production process by water electrolysis generally mainly aims at hydrogen production at the present stage, the potential energy existing in solution change in the electrolysis process cannot be fully utilized, and seawater resources are rich but complex components of the seawater are difficult to be effectively utilized.
Disclosure of Invention
The invention provides a method and a device for combining seawater electrolysis and hydrogen production with carbon dioxide capture, aiming at the defects of the existing carbon dioxide capture process and the water electrolysis and hydrogen production process.
The technical scheme for solving the technical problems is as follows:
a method for producing hydrogen by electrolyzing seawater and collecting carbon dioxide comprises the following steps:
(1) electrolysis: injecting fresh water into an anode electrolytic cell, injecting seawater into a cathode electrolytic cell, a medium cell and a hydrogen storage ion cell, starting electrolysis after a cathode and an anode are powered on, generating oxygen in the anode electrolytic cell, simultaneously changing the fresh water in the anode electrolytic cell into an acidic solution, generating hydrogen in the cathode electrolytic cell, simultaneously changing the seawater in the cathode electrolytic cell into an alkaline solution, respectively collecting the generated oxygen and hydrogen, and stopping electrolysis when the pH value in the cathode electrolytic cell reaches more than 10;
(2) ion and charge balance: hydrogen ions generated in the anode electrolytic cell enter the hydrogen storage ion tank through the cation exchange membrane under the action of osmotic pressure, so that the cations in the hydrogen storage ion tank are excessive, the anions in the cathode electrolytic cell are excessive due to hydroxyl ions generated in the cathode electrolytic cell, the electrolyte in the seawater in the medium tank supplements the anions to the hydrogen storage ion tank through the anion exchange membrane, and simultaneously supplements the cations to the cathode electrolytic cell through the cation exchange membrane, so that the charge balance in the cathode electrolytic cell and the hydrogen storage ion tank is kept;
(3)CO2absorption of (2): the flue gas is dedusted and then introduced into a cathode electrolytic cell, and CO in the flue gas2Reacting and absorbing by alkaline solution in a cathode electrolytic cell until the absorption is saturated, and stopping introducing the flue gas;
(4)CO2the release of (2): leading out the alkaline solution in the cathode electrolytic tank and the acid solution in the hydrogen storage ion tank, mixing, performing neutralization reaction, and absorbing CO2Is released and the trapped CO is collected2；
(5) And (3) circulation: fresh water is supplemented into the anode electrolytic cell, seawater is supplemented into the cathode electrolytic cell, the medium cell and the hydrogen storage ion cell, and the steps (1) to (4) are repeated to realize CO in the flue gas2Continuous trapping of (2).
Further, the cathode and the anode are both inert electrodes, and preferably, the cathode and the anode are both graphite electrodes.
The method provided by the invention has the beneficial effects that:
1) by utilizing the seawater electrolysis hydrogen production technology, the electrolyte in seawater is fully utilized, acid and alkali solutions are generated under the reasonable layout of the anion-cation membrane and the cation-anion membrane, the acid solution generated by the anode environment is utilized for neutralization after the alkali solution absorbs carbon dioxide, so that the carbon dioxide is released, the carbon dioxide is captured, and the potential energy of the solution change in the electrolysis process is fully utilized;
2) the generation of green energy hydrogen is accompanied in the electrolysis process, so that the input of energy in the regeneration process is reasonably utilized;
3) the absorption and the analysis of the carbon dioxide are realized by utilizing the acid-base alternative process of the solution, and the heat is released in the neutralization reaction process, thereby being more beneficial to CO2Analyzing;
4) combining the process of electrolyzing water with CO2The trapping process is combined, the reaction principle is simple, the realization is easy, the batch operation of a plurality of groups of reactions can be realized, and the continuous trapping and releasing of the flue gas can be realized.
The invention also claims a device for realizing the combined carbon dioxide capture method for electrolyzing seawater to prepare hydrogen, which comprises an electrolysis device, a flue gas blowing-in device, a gas collecting device, a neutralization release pool and a liquid supplementing device;
the electrolytic device comprises an anode electrolytic cell, a cathode electrolytic cell, a hydrogen storage ion cell, a medium cell, an anode, a cathode and a power supply, fresh water is filled in the anode electrolytic cell, seawater is filled in the cathode electrolytic cell, the hydrogen storage ion cell and the medium cell, the anode electrolytic cell is separated from the hydrogen storage ion cell by a cation exchange membrane, the hydrogen storage ion cell is separated from the medium cell by an anion exchange membrane, the medium cell is separated from the cathode electrolytic cell by a cation exchange membrane, the fresh water in the anode electrolytic cell is provided with the anode, the seawater in the cathode electrolytic cell is provided with the cathode, and the anode and the cathode are electrically connected with the power supply;
the flue gas blowing device is communicated with the lower part of the cathode electrolytic cell;
the gas collecting device comprises an oxygen collecting device, a hydrogen collecting device and CO2The oxygen collecting device is arranged on the upper part of the anode electrolytic tank, the hydrogen collecting device is arranged on the upper part of the cathode electrolytic tank, and the CO is2The collecting device is arranged at the upper part of the neutralization and release tank;
the neutralization release tank is positioned below the electrolytic device, the bottoms of the hydrogen storage ion tank and the cathode electrolytic tank are respectively communicated with the bottom of the neutralization release tank through pipelines, and the pipelines for communicating the bottoms of the hydrogen storage ion tank and the cathode electrolytic tank with the neutralization release tank are provided with valves;
the liquid supplementing device comprises a fresh water supplementing device and a seawater supplementing device, the fresh water supplementing device is communicated with the lower part of the anode electrolytic cell, and the seawater supplementing device is respectively communicated with the bottoms of the hydrogen storage ion cell, the medium cell and the cathode electrolytic cell.
Preferably, the fresh water replenishing means comprises a seawater desalination plant.
Preferably, the anode and cathode are both inert electrodes, and more preferably, the anode and cathode are both graphite electrodes.
Drawings
FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention;
1. an anodic electrolytic cell; 2. a cathodic electrolysis cell; 3. a hydrogen storage ion tank; 4. a dielectric tank; 5. an anode; 6. a cathode; 7. a power source; 8. a cation exchange membrane; 9. an anion exchange membrane; 10. a flue gas blowing device; 11. a hydrogen gas collecting device; 12. an oxygen collection device; 13. CO 22A collection device; 14. a neutralization release pool; 15. a fresh water replenishing device; 16. a seawater replenishing device; 17. a seawater desalination facility.
Detailed Description
The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in fig. 1, a device combining seawater electrolysis for hydrogen production and carbon dioxide capture comprises an electrolysis device, a flue gas blowing-in device, a gas collecting device, a neutralization release tank, a gas blowing-in device and a liquid supplementing device;
the electrolysis device comprises an anode electrolysis bath 1, a cathode electrolysis bath 2, a hydrogen storage ion bath 3, a medium bath 4, an anode 5, a cathode 6 and a power supply 7, fresh water is filled in the anode electrolysis bath, seawater is filled in the cathode electrolysis bath, the hydrogen storage ion bath and the medium bath, the anode electrolysis bath and the hydrogen storage ion bath are separated by a cation exchange membrane 8, the hydrogen storage ion bath and the medium bath are separated by an anion exchange membrane 9, the medium bath and the cathode electrolysis bath are separated by the cation exchange membrane 8, the fresh water in the anode electrolysis bath is provided with the anode 5, the seawater in the cathode electrolysis bath is provided with the cathode 6, and the anode and the cathode are electrically connected with the power supply;
the flue gas blowing device 10 is communicated with the lower part of the cathode electrolytic cell 2;
the gas collecting device comprises a hydrogen collecting device 11, an oxygen collecting device 12 and CO2A collecting device 13, a hydrogen collecting device 11 arranged at the upper part of the cathode electrolytic tank 2, an oxygen collecting device 12 arranged at the upper part of the anode electrolytic tank 1, and CO2The collecting device 13 is arranged at the upper part of the neutralization and release tank 14;
the neutralization release tank 14 is positioned below the electrolytic device, the bottoms of the hydrogen storage ion tank 3 and the cathode electrolytic tank 2 are respectively communicated with the bottom of the neutralization release tank 14 through pipelines, and the pipelines for communicating the bottoms of the hydrogen storage ion tank and the cathode electrolytic tank with the neutralization release tank are provided with valves;
the liquid replenishing device comprises a fresh water replenishing device 15 and a seawater replenishing device 16, the fresh water replenishing device 15 is communicated with the lower part of the anode electrolytic tank, and the seawater replenishing device 16 is respectively communicated with the hydrogen storage ion tank, the medium tank and the bottom of the cathode electrolytic tank.
Preferably, the fresh water replenishing device comprises a seawater desalting facility 17, and the desalted seawater is replenished into the anode electrolysis cell.
Preferably, the medium tank is provided with a drainage facility, and seawater in the medium tank is drained in time according to the use condition.
The method for combining seawater electrolysis and carbon dioxide capture by using the device comprises the following steps:
(1) electrolysis: injecting fresh water into an anode electrolytic cell, injecting seawater into a cathode electrolytic cell, a medium cell and a hydrogen storage ion cell, starting electrolysis after a cathode and an anode are powered on, generating hydrogen in the cathode electrolytic cell, simultaneously changing the seawater in the cathode electrolytic cell into an alkaline solution, generating oxygen in the anode electrolytic cell, simultaneously changing the fresh water in the anode electrolytic cell into an acidic solution, respectively collecting the generated hydrogen and oxygen, and stopping electrolysis when the pH value in the cathode electrolytic cell reaches more than 10;
(2) ion and charge balance: hydrogen ions generated in the anode electrolytic tank enter the hydrogen storage ion tank through the cation exchange membrane under the action of osmotic pressure to cause surplus of cations in the hydrogen storage ion tank, hydroxyl ions generated in the cathode electrolytic tank cause surplus of anions in the cathode electrolytic tank, and electrolyte in seawater in the medium tank supplements anions to the hydrogen storage ion tank through the anion exchange membrane and supplements cations to the cathode electrolytic tank through the cation exchange membrane to keep charge balance in the cathode electrolytic tank and the hydrogen storage ion tank;
(3)CO2absorption of (2): introducing the flue gas into a cathode electrolytic cell after dust removal, wherein CO in the flue gas2Reacting and absorbing by alkaline solution in a cathode electrolytic cell until the absorption is saturated, and stopping introducing the flue gas;
(4)CO2the release of (2): leading out the alkaline solution in the cathode electrolytic tank and the acid solution in the hydrogen storage ion tank, mixing, performing neutralization reaction, and absorbing CO2Is released and the trapped CO is collected2；
(5) And (3) circulation: fresh water is supplemented into the anode electrolytic cell, seawater is supplemented into the cathode electrolytic cell, the medium cell and the hydrogen storage ion cell, and the steps (1) to (4) are repeated to realize CO in the flue gas2Is continuously trapped.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A method for producing hydrogen by electrolyzing seawater and collecting carbon dioxide comprises the following steps:
(1) electrolysis: fresh water is injected into an anode electrolytic tank, seawater is injected into a cathode electrolytic tank, a medium tank and a hydrogen storage ion tank, electrolysis is started after the anode and the cathode are powered on, oxygen is generated in the anode electrolytic tank, meanwhile, the fresh water in the anode electrolytic tank is changed into an acidic solution, hydrogen is generated in the cathode electrolytic tank, meanwhile, the seawater in the cathode electrolytic tank is changed into an alkaline solution, the generated oxygen and the generated hydrogen are respectively collected, and the electrolysis is stopped when the pH value in the cathode electrolytic tank reaches more than 10;
(2) ion and charge balance: hydrogen ions generated in the anode electrolytic cell penetrate through the cation exchange membrane to enter the hydrogen storage ion tank under the action of osmotic pressure, so that the cations in the hydrogen storage ion tank are excessive, the anions in the cathode electrolytic cell are excessive due to hydroxyl ions generated in the cathode electrolytic cell, the electrolyte in the seawater in the medium tank supplies the anions to the hydrogen storage ion tank through the anion exchange membrane, and meanwhile, the cations are supplied to the cathode electrolytic cell through the cation exchange membrane, so that the charge balance between the cathode electrolytic cell and the hydrogen storage ion tank is kept;
(3)CO2absorption of (2): introducing the flue gas into a cathode electrolytic cell after dust removal, wherein CO in the flue gas2Reacting and absorbing by alkaline solution in the cathode electrolytic cell until the absorption is saturated, and stopping introducing the flue gas;
(4)CO2the release of (2): leading out the alkaline solution in the cathode electrolytic tank and the acid solution in the hydrogen storage ion tank, mixing, performing neutralization reaction, and absorbing CO2Is released and the trapped CO is collected2；
(5) And (3) circulation: fresh water is supplemented into the anode electrolytic cell, seawater is supplemented into the cathode electrolytic cell, the medium cell and the hydrogen storage ion cell, and the steps (1) to (4) are repeated to realize CO in the flue gas2Is continuously trapped.
2. The method of claim 1, wherein the anode and cathode are both inert electrodes.
3. The method of claim 2, wherein the inert electrode is a graphite electrode.
4. The method according to any one of claims 1 to 3, wherein the cation exchange membrane is a sulfonic acid type cation exchange membrane.
5. The method of any one of claims 1-3, wherein the anion exchange membrane is a quaternary ammonium type anion exchange membrane.
6. An apparatus for carrying out the method of claims 1 to 5, comprising an electrolysis unit, a flue gas blowing unit, a gas collecting unit, a neutralization and release tank and a liquid replenishing unit;
the electrolysis device comprises an anode electrolysis cell, a cathode electrolysis cell, a hydrogen storage ion cell, a medium cell, an anode, a cathode and a power supply, fresh water is filled in the anode electrolysis cell, seawater is filled in the cathode electrolysis cell, the hydrogen storage ion cell and the medium cell, the anode electrolysis cell and the hydrogen storage ion cell are separated by a cation exchange membrane, the hydrogen storage ion cell and the medium cell are separated by an anion exchange membrane, the medium cell and the cathode electrolysis cell are separated by a cation exchange membrane, the fresh water in the anode electrolysis cell is provided with the anode, the seawater in the cathode electrolysis cell is provided with the cathode, and the anode and the cathode are electrically connected with the power supply;
the flue gas blowing device is communicated with the lower part of the cathode electrolytic cell;
the gas collecting device comprises an oxygen collecting device, a hydrogen collecting device and CO2The oxygen collecting device is arranged on the upper part of the anode electrolytic tank, the hydrogen collecting device is arranged on the upper part of the cathode electrolytic tank, and the CO is2The collecting device is arranged at the upper part of the neutralization and release tank;
the neutralization release tank is positioned below the electrolytic device, the bottoms of the hydrogen storage ion tank and the cathode electrolytic tank are respectively communicated with the bottom of the neutralization release tank through pipelines, and the pipelines for communicating the bottoms of the hydrogen storage ion tank and the cathode electrolytic tank with the neutralization release tank are provided with valves;
the liquid supplementing device comprises a fresh water supplementing device and a seawater supplementing device, the fresh water supplementing device is communicated with the lower part of the anode electrolytic cell, and the seawater supplementing device is respectively communicated with the hydrogen storage ion tank, the medium tank and the bottom of the cathode electrolytic cell.
7. The apparatus of claim 6, wherein the fresh water supplement comprises a desalination plant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210020160.7A CN114517301A (en) | 2022-01-10 | 2022-01-10 | Method and device for producing hydrogen by electrolyzing seawater and collecting carbon dioxide |
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| CN202210020160.7A CN114517301A (en) | 2022-01-10 | 2022-01-10 | Method and device for producing hydrogen by electrolyzing seawater and collecting carbon dioxide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023181794A1 (en) * | 2022-03-22 | 2023-09-28 | 住友重機械工業株式会社 | Carbon dioxide fixation method and carbon dioxide fixation system |
| WO2024002310A1 (en) * | 2022-06-30 | 2024-01-04 | 中国石油天然气集团有限公司 | Method for coupling carbon dioxide capture and hydrogen production, and system therefor |
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|---|---|---|---|---|
| US20100116683A1 (en) * | 2008-07-16 | 2010-05-13 | Gilliam Ryan J | Low Energy 4-Cell Electrochemical System with Carbon Dioxide Gas |
| CN101910469A (en) * | 2008-07-16 | 2010-12-08 | 卡勒拉公司 | Co2 utilization in electrochemical systems |
| CN113117506A (en) * | 2021-04-14 | 2021-07-16 | 上海科技大学 | Electrolysis device and method for capturing carbon dioxide from industrial waste gas or air |
-
2022
- 2022-01-10 CN CN202210020160.7A patent/CN114517301A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100116683A1 (en) * | 2008-07-16 | 2010-05-13 | Gilliam Ryan J | Low Energy 4-Cell Electrochemical System with Carbon Dioxide Gas |
| CN101910469A (en) * | 2008-07-16 | 2010-12-08 | 卡勒拉公司 | Co2 utilization in electrochemical systems |
| CN113117506A (en) * | 2021-04-14 | 2021-07-16 | 上海科技大学 | Electrolysis device and method for capturing carbon dioxide from industrial waste gas or air |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023181794A1 (en) * | 2022-03-22 | 2023-09-28 | 住友重機械工業株式会社 | Carbon dioxide fixation method and carbon dioxide fixation system |
| WO2024002310A1 (en) * | 2022-06-30 | 2024-01-04 | 中国石油天然气集团有限公司 | Method for coupling carbon dioxide capture and hydrogen production, and system therefor |
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Inventor after: Wang Yongxing Inventor after: Zhou Anna Inventor after: Duan Weichao Inventor after: Zhang Tingting Inventor after: OuYang Zhenyu Inventor before: OuYang Zhenyu Inventor before: Wang Yongxing Inventor before: Zhou Anna Inventor before: Duan Weichao Inventor before: Zhang Tingting |
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Application publication date: 20220520 |