CN205329170U - Multi -chambered diaphragm electrolysis device that is carbon dioxide electroreduction carbon monoxide - Google Patents
Multi -chambered diaphragm electrolysis device that is carbon dioxide electroreduction carbon monoxide Download PDFInfo
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- CN205329170U CN205329170U CN201520909237.1U CN201520909237U CN205329170U CN 205329170 U CN205329170 U CN 205329170U CN 201520909237 U CN201520909237 U CN 201520909237U CN 205329170 U CN205329170 U CN 205329170U
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- carbon dioxide
- cathode chamber
- chamber
- anode
- electrolyte
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 198
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 99
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 99
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 41
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims abstract description 39
- 239000003792 electrolyte Substances 0.000 claims abstract description 82
- 238000010521 absorption reaction Methods 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims description 70
- 239000003014 ion exchange membrane Substances 0.000 claims description 20
- 150000003460 sulfonic acids Chemical class 0.000 claims description 19
- 230000016507 interphase Effects 0.000 claims description 11
- 150000002894 organic compounds Chemical class 0.000 abstract description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 47
- 239000003115 supporting electrolyte Substances 0.000 description 34
- 229920006395 saturated elastomer Polymers 0.000 description 22
- 239000003054 catalyst Substances 0.000 description 21
- 238000006722 reduction reaction Methods 0.000 description 19
- 239000003960 organic solvent Substances 0.000 description 17
- 239000012744 reinforcing agent Substances 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000005486 organic electrolyte Substances 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 10
- -1 but Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 230000036647 reaction Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 5
- 239000001763 2-hydroxyethyl(trimethyl)azanium Substances 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 235000019743 Choline chloride Nutrition 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- SGMZJAMFUVOLNK-UHFFFAOYSA-M choline chloride Chemical compound [Cl-].C[N+](C)(C)CCO SGMZJAMFUVOLNK-UHFFFAOYSA-M 0.000 description 4
- 229960003178 choline chloride Drugs 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 4
- 230000000306 recurrent effect Effects 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- GILIYJDBJZWGBG-UHFFFAOYSA-N 1,1,1-trifluoropropan-2-ol Chemical compound CC(O)C(F)(F)F GILIYJDBJZWGBG-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- XXLDWSKFRBJLMX-UHFFFAOYSA-N carbon dioxide;carbon monoxide Chemical compound O=[C].O=C=O XXLDWSKFRBJLMX-UHFFFAOYSA-N 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- KBLZDCFTQSIIOH-UHFFFAOYSA-M tetrabutylazanium;perchlorate Chemical group [O-]Cl(=O)(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC KBLZDCFTQSIIOH-UHFFFAOYSA-M 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 2
- 235000019797 dipotassium phosphate Nutrition 0.000 description 2
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- HTXDPTMKBJXEOW-UHFFFAOYSA-N iridium(IV) oxide Inorganic materials O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001507 metal halide Inorganic materials 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 2
- 235000019796 monopotassium phosphate Nutrition 0.000 description 2
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 2
- 235000019799 monosodium phosphate Nutrition 0.000 description 2
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical group O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 2
- 150000004032 porphyrins Chemical class 0.000 description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 2
- 239000011736 potassium bicarbonate Substances 0.000 description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 2
- KAIPKTYOBMEXRR-UHFFFAOYSA-N 1-butyl-3-methyl-2h-imidazole Chemical group CCCCN1CN(C)C=C1 KAIPKTYOBMEXRR-UHFFFAOYSA-N 0.000 description 1
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical compound N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910001914 chlorine tetroxide Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical group [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
- C25B9/70—Assemblies comprising two or more cells
-
- 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
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model relates to a multi -chambered diaphragm electrolysis device that is carbon dioxide electroreduction carbon monoxide belongs to carbon dioxide utilization technical field. This device electrolytic bath passes through perfluor sulfonic acid amberplex and separates into a plurality of electrode chambers, constitute the alternate multi -chambered diaphragm electrolysis pond of arranging with the anode chamber of cathode chamber, the bottom of cathode chamber and anode chamber is equipped with negative pole and positive pole respectively, the anode chamber top is equipped with the entry of water, what flow out in the gaseous absorption tower dissolves the bottom that the pipeline that has a large amount of carbon dioxide's organic compound electrolyte to pass through cathodic electrolysis liquid circulating device flowed into the cathode chamber, dissolving of cathode chamber upper portion has lower concentration carbon dioxide's organic compound electrolyte to return the top on gaseous absorption tower through cathodic electrolysis liquid circulating device, the side on gaseous absorption tower is equipped with the carbon dioxide entry, pipeline and gas tank connection are passed through to the top of cathode chamber. The multi -chambered diaphragm electrolysis device that utilizes this utility model to provide can be carbon monoxide with the continuous high -efficient ground electroreduction of carbon dioxide.
Description
Technical field
This utility model relates to a kind of by the multicell diaphragm electrolysis apparatus that carbon dioxide electroreduction is carbon monoxide, belongs to Resources of Carbon Dioxide and utilizes technical field。
Background technology
It is useful chemicals by carbon dioxide conversion, it is achieved carbon resource recycles, is field of energy environment realistic problem in the urgent need to address。Synthesis gas is a kind of widely used basic chemical industry raw material, and its Main Ingredients and Appearance is carbon monoxide and hydrogen。At present, synthesis gas is mainly produced by Fossil fuel, but, Fossil fuel is non-renewable, and in use also to give off substantial amounts of carbon dioxide, cause greenhouse gases effect and global warming, therefore, explore the production method of non-fossil fuel source synthesis gas, become an important research topic。This utility model adopts carbon dioxide and water to be that synthesis gas prepared by raw material, with Reproduceable electricity for electrolysis electric energy, carbon dioxide, water electrolysis are reduced to carbon monoxide, hydrogen, then the carbon monoxide of acquisition and hydrogen are mixed, preparing synthesis gas, gained synthesis gas is used for producing the downstream chemical products such as methanol, paraffin, polyurethane。
Synthesis gas is prepared for fundamental, it is necessary to the key problem of solution is: be carbon monoxide by carbon dioxide continuously and efficiently electroreduction with carbon dioxide, water and Reproduceable electricity。
Summary of the invention
In order to be carbon monoxide by carbon dioxide continuously and efficiently electroreduction, this utility model provides the multicell diaphragm electrolysis apparatus that a kind of carbon dioxide electroreduction is carbon monoxide, as shown in Figure 1, this utility model is achieved through the following technical solutions: divide the cell into multiple electrode chamber with perfluorinated sulfonic acid ion exchange membrane, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, adopting the organic composite electrolyte dissolved with great amount of carbon dioxide is catholyte, aqueous solution containing supporting electrolyte is anolyte, it is negative electrode that electrolysis carbon dioxide carbon monoxide is had high selective electrode material by employing, inert electrode is anode, collectively form multicell diaphragm cell。In cell reaction process, there is oxidation reaction in water on anode, generates hydrion and oxygen, and hydrion moves in cathode chamber electrolyte through mass transport process, participates in carbon dioxide electro-reduction reaction, generates carbon monoxide。Owing to carbon dioxide electro-reduction reaction itself has water to generate, can there is electro-reduction reaction in water, cause having hydrogen to generate on negative electrode on negative electrode。
Described organic composite electrolyte comprises four kinds of function components: organic solvent, organic supporting electrolyte, proton conductive reinforcing agent and eelctro-catalyst。
Described organic solvent is the mixed solvent of a kind of or arbitrary proportion composition in Allyl carbonate, N-Methyl pyrrolidone, diethyl carbonate;Described organic supporting electrolyte is the mixed electrolyte of one or both arbitrary proportions combination in quaternary ammonium salt, choline chloride;Described proton conductive reinforcing agent is the mixture of a kind of or arbitrary proportion composition in trifluoromethyl ethanol, methanol and phenol;Described eelctro-catalyst is metal porphyrins, metal phthalocyanine compound, three carbonyl-2, one or more the arbitrary proportion mixture in 4 '-second bipyridine metal halide, glyoxaline ion liquid。
As the quaternary ammonium salt of supporting electrolyte organic in organic composite electrolyte, its chemical structural formula is:
R1、R2、R3、R4For C1-C5Hydrocarbon chain;X-For CF3SO3 -、ClO4 -、(CF3SO2)2N-、CF3COO-、H2PO4 -、HCO3 -、Cl-、HSO4 -、Br-;
As the choline chloride of supporting electrolyte organic in organic composite electrolyte, its chemical structural formula is:
As the metal porphyrins of eelctro-catalyst in organic composite electrolyte, its chemical structural formula is:
M1For ferrum or cobalt element, R1、R2、R3、R4For hydrogen atom or C1-C5Hydrocarbon chain, or benzene substituent group;
As the metal phthalocyanine compound of eelctro-catalyst in organic composite electrolyte, its chemical structural formula is:
M2For ferrum, manganese or copper;
As three carbonyl-2 of eelctro-catalyst in organic composite electrolyte, 4 '-second bipyridine metal halide, its chemical structural formula is:
M3For manganese or rhenium element, X is Cl, Br or I, R1、R2For hydrogen atom or C1-C5Hydrocarbon chain;
As the glyoxaline ion liquid of eelctro-catalyst in organic composite electrolyte, its chemical structural formula is:
R1、R2For C1-C5Hydrocarbon chain;M, N are connected to hydrogen atom on hydrocarbon chain or functional group, and functional group is: CN, NH2Or OH;X-For (CF3SO2)2N-、CF3COO-、CF3SO3 -、HCO3 -、HSO4 -、H2PO4 -、Br-、Cl-。
Supporting electrolyte in described anolyte is one or more the arbitrary proportion mixture in potassium bicarbonate, sodium bicarbonate, potassium dihydrogen phosphate, sodium dihydrogen phosphate, potassium hydrogen phosphate, dibastic sodium phosphate, potassium sulfate, sodium sulfate or sulphuric acid。
Described anode is yttrium oxide coating titanium anode, IrO2·Ta2O5Coating titanium anode, glass-carbon electrode or graphite electrode。
Described negative electrode is any one in Cu, Au, Ag, Zn electrode, or the alloy of above-mentioned metal。
By the multicell diaphragm electrolysis method that carbon dioxide electroreduction is carbon monoxide, it is as follows that it is embodied as step:
Step one, organic supporting electrolyte is dissolved in organic solvent, obtain the organic electrolyte of 0.1~3.0mol/L, organic electrolyte adds proton conductive reinforcing agent according to desired concn 0.1~0.4mol/L, it is that 0.01~0.2mol/L adds eelctro-catalyst according still further to desired concn, obtain organic composite electrolyte, carbon dioxide is dissolved in organic composite electrolyte, concentration is made to reach 0.09~0.21mol/L, gained solution is injected in diaphragm cell cathode chamber, is injected in diaphragm cell anode chamber by the aqueous solution that supporting electrolyte concentration is 0.1~2mol/L;
Step 2, connect electrolysis power, control decomposition voltage is 3.6~4.3V, under normal temperature and pressure conditions, carrying out cell reaction, at this moment there is electro-oxidation reaction in water on anode, generate hydrion and oxygen, the hydrion generated moves to negative electrode through perfluorinated sulfonic acid ion exchange membrane, participates in carbon dioxide electro-reduction reaction, generates carbon monoxide。Owing to carbon dioxide electro-reduction reaction itself has water to generate, cause that containing a certain amount of water in catholyte, electro-reduction reaction occurs water on negative electrode, generates hydrogen, therefore, by-product hydrogen on negative electrode。By negative electrode gas-phase reaction product collection in air accumulator, it is used for producing downstream product。In order to enable carbon dioxide electro-reduction reaction to carry out continuously and stably, this utility model have employed catholyte circulating technology: is passed into by carbon dioxide in absorption column of gas, with organic composite electrolyte solution absorption carbon dioxide, when gas concentration lwevel reaches or close to time saturated, this organic composite electrolyte dissolved with great amount of carbon dioxide is injected the bottom of multicell diaphragm cell cathode chamber, meanwhile, the organic composite electrolyte being in multicell diaphragm cell cathode chamber top automatically flows out from cathode chamber, this organic composite electrolyte containing low concentration carbon dioxide is introduced again in absorption column of gas, for solution absorption carbon dioxide, gained contains saturated or close to saturated gas concentration lwevel organic composite electrolyte, it is injected again bottom multicell diaphragm cell cathode chamber, it is consequently formed catholyte circulation。Control the speed that organic composite electrolyte flows into, flows out multicell diaphragm cell cathode chamber, enable carbon dioxide electro-reduction reaction to carry out continuously and stably。
A kind of by multicell diaphragm electrolysis apparatus that carbon dioxide electroreduction is carbon monoxide:
Device includes absorption column of gas 1, negative electrode 2, anode 3, air accumulator 4, perfluorinated sulfonic acid ion exchange membrane 5, electrolyzer and catholyte liquid circulating device, electrolyzer is separated into multiple electrode chamber by perfluorinated sulfonic acid ion exchange membrane 5, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, the bottom of cathode chamber and anode chamber is respectively equipped with negative electrode 2 and anode 3, top, anode chamber is provided with the entrance of water, the organic composite electrolyte dissolved with great amount of carbon dioxide flowed out in absorption column of gas 1 is flowed into the bottom of cathode chamber by the pipeline of catholyte liquid circulating device, the organic composite electrolyte dissolved with low concentration carbon dioxide on cathode chamber top returns to the top of absorption column of gas 1 by catholyte liquid circulating device, the side of absorption column of gas 1 is provided with carbon dioxide entrance, the top of cathode chamber is connected with air accumulator 4 by pipeline。
Compared with prior art, this utility model has techniques below advantage:
(1) the multicell diaphragm electrolysis apparatus that this utility model proposes, carbon dioxide electro-reduction reaction can carry out in organic composite electrolyte, and meanwhile, the electro-oxidation reaction of water can carry out in aqueous。Owing to carbon dioxide is nonpolar molecule, organic composite electrolyte has good dissolubility, therefore, electroreduction carbon dioxide in organic composite electrolyte, it is possible to improve the electric current density of carbon dioxide electro-reduction reaction;
(2) the multicell diaphragm electrolysis apparatus that this utility model proposes, its cathode chamber electrolyte is organic composite electrolyte, and this electrolyte comprises four kinds of function components: organic solvent, organic supporting electrolyte, proton conductive reinforcing agent and eelctro-catalyst。The organic solvent that this utility model adopts has very strong dissolved carbon dioxide ability, the supporting electrolyte adopted has significantly high electrochemical stability, the proton conductive reinforcing agent adopted can promote hydrion migration in organic electrolyte and ion exchange membrane, and the eelctro-catalyst adopted can reduce the overpotential of carbon dioxide electro-reduction reaction。Therefore, electroreduction carbon dioxide in above-mentioned organic composite electrolyte, it is possible to be effectively improved the electric current density of carbon dioxide electro-reduction reaction, reduces the overpotential of carbon dioxide electro-reduction reaction simultaneously;
(3) this utility model have employed catholyte circulating technology, it is possible to makes carbon dioxide electro-reduction reaction carry out when continuous-stable。Catholyte circulation is achieved in that in carbon dioxide absorption tower, with organic composite electrolyte solution absorption carbon dioxide, when gas concentration lwevel reaches or close to time saturated, organic composite electrolyte dissolved with great amount of carbon dioxide is injected bottom multicell diaphragm cell cathode chamber, meanwhile, the organic compound solution being in cathode chamber top constantly flows out from cathode chamber, this organic composite electrolyte containing low concentration carbon dioxide is introduced again in absorption column of gas, for solution absorption carbon dioxide, gained contains saturated or close to saturated gas concentration lwevel organic composite electrolyte and is injected again bottom multicell diaphragm cell cathode chamber, it is consequently formed catholyte circulation。By controlling the speed that organic composite electrolyte flows into, flows out multicell diaphragm cell cathode chamber, it is possible to make carbon dioxide electro-reduction reaction carry out when continuous-stable。
(4) the multicell diaphragm electrolysis apparatus that this utility model proposes is easily achieved industrial applications。Such as: can pass through to increase electrode chamber quantity, increase electrode chamber volume and the method expanding electrode area, improve the production capacity of multicell diaphragm electrolysis apparatus。
Accompanying drawing explanation
Fig. 1 is this utility model by the multicell diaphragm electrolysis apparatus schematic diagram that carbon dioxide electroreduction is carbon monoxide。
In figure: 1-absorption column of gas, 2-negative electrode, 3-anode, 4-air accumulator, 5-perfluorinated sulfonic acid ion exchange membrane。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail。
Embodiment 1
Multicell diaphragm electrolysis method by carbon dioxide electroreduction is carbon monoxide: divide the cell into multiple electrode chamber with perfluorinated sulfonic acid ion exchange membrane, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, cathode chamber electrolyte is the organic composite electrolyte dissolved with carbon dioxide, anode chamber's electrolyte is the aqueous solution containing supporting electrolyte, negative electrode adopts has high selective metal electrode to electrolysis carbon dioxide carbon monoxide, anode is inert electrode, in cell reaction process, negative electrode there is carbon monoxide generate, simultaneously by-product hydrogen。
Described organic composite electrolyte comprises four kinds of function components: organic solvent, organic supporting electrolyte, proton conductive reinforcing agent and eelctro-catalyst。
Described organic solvent is Allyl carbonate;Described organic supporting electrolyte is tetrabutylammonium perchlorate's quaternary ammonium salt;Described proton conductive reinforcing agent is trifluoromethyl ethanol;Described eelctro-catalyst is iron content porphyrin compound。
The supporting electrolyte of described anolyte is sulphuric acid。
Described anode is IrO2·Ta2O5Coating titanium anode, negative electrode is Au。
Implement step as follows:
Step one, organic supporting electrolyte is dissolved in organic solvent, obtain the organic electrolyte of 3.0mol/L, in organic electrolyte according to desired concn be 0.1mol/L add proton conductive reinforcing agent, it is that 0.01mol/L adds eelctro-catalyst according still further to desired concn, obtain organic composite electrolyte, carbon dioxide is dissolved in organic composite electrolyte, concentration is made to reach 0.09mol/L, gained solution is injected in diaphragm cell cathode chamber, is injected in diaphragm cell anode chamber as anolyte by the aqueous solution that supporting electrolyte concentration is 0.1mol/L;
Step 2, connect electrolysis power, controls decomposition voltage is 4.3V, under normal temperature and pressure conditions, when cell reaction carry out 2 little constantly, record generation carbon monoxide electric current density be 430A/m2, the current efficiency generating carbon monoxide is 91%;Cell reaction carries out in process, catholyte is in recurrent state all the time, what flow out from absorption column of gas contains saturated or close to saturated gas concentration lwevel organic composite electrolyte, it is injected into bottom multicell diaphragm electrolysis apparatus cathode chamber, meanwhile, it is in the organic composite electrolyte on cathode chamber top, constantly flow out from cathode chamber, this organic composite electrolyte containing low concentration carbon dioxide is introduced again in absorption column of gas, for solution absorption carbon dioxide, gained contains saturated or close to saturated gas concentration lwevel organic composite electrolyte and is injected again bottom multicell diaphragm cell cathode chamber, it is consequently formed catholyte circulation。Control the speed that catholyte flows into, flows out multicell diaphragm cell cathode chamber, enable carbon dioxide electro-reduction reaction to carry out when continuous-stable。
As shown in Figure 1, by the multicell diaphragm electrolysis apparatus that carbon dioxide electroreduction is carbon monoxide, its composition includes absorption column of gas 1, negative electrode 2, anode 3, air accumulator 4, perfluorinated sulfonic acid ion exchange membrane 5, electrolyzer and catholyte liquid circulating device, multiple electrode chamber is divided the cell into perfluorinated sulfonic acid ion exchange membrane 5, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, the bottom of cathode chamber and anode chamber is respectively equipped with negative electrode 2 and anode 3, top, anode chamber is provided with the entrance of water, the organic composite electrolyte dissolved with carbon dioxide flowed out in absorption column of gas 1 is flowed into the bottom of cathode chamber by the pipeline of catholyte liquid circulating device, cathode chamber top returns to the top of absorption column of gas 1 dissolved with the organic composite electrolyte of carbon dioxide by catholyte liquid circulating device, the side of absorption column of gas 1 is provided with carbon dioxide entrance, the top of cathode chamber is connected with air accumulator 4 by pipeline。
Embodiment 2
Multicell diaphragm electrolysis method by carbon dioxide electroreduction is carbon monoxide: divide the cell into multiple electrode chamber with perfluorinated sulfonic acid ion exchange membrane, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, cathode chamber electrolyte is the organic composite electrolyte dissolved with carbon dioxide, anode chamber's electrolyte is the aqueous solution containing supporting electrolyte, electrolysis carbon dioxide is prepared carbon monoxide and is had high selective metal electrode by negative electrode employing, anode is inert electrode, in cell reaction process, negative electrode there is carbon monoxide generate, simultaneously by-product hydrogen。
Described organic composite electrolyte comprises four kinds of function components: organic solvent, organic supporting electrolyte, proton conductive reinforcing agent and eelctro-catalyst。
Described organic solvent is N-Methyl pyrrolidone;Described organic supporting electrolyte is choline chloride;Described proton conductive reinforcing agent is methanol;Described eelctro-catalyst is 1-butyl-3-Methylimidazole. trifluoromethyl sulfonic acid。
The supporting electrolyte of described anolyte is sodium sulfate。
Described anode is graphite electrode, and negative electrode is Ag。
Implement step as follows:
Step one, organic supporting electrolyte is dissolved in organic solvent, obtain the organic electrolyte of 0.1mol/L, in organic electrolyte according to desired concn be 0.4mol/L add proton conductive reinforcing agent, it is that 0.2mol/L adds eelctro-catalyst according still further to desired concn, obtain organic composite electrolyte, carbon dioxide is dissolved in organic composite electrolyte, concentration is made to reach 0.21mol/L, gained solution is injected in diaphragm cell cathode chamber, is injected in diaphragm cell anode chamber as anolyte by the aqueous solution that supporting electrolyte concentration is 2mol/L;
Step 2, connect electrolysis power, controls decomposition voltage is 3.6V, under normal temperature and pressure conditions, when cell reaction carry out 2 little constantly, record generation carbon monoxide electric current density be 410A/m2, the current efficiency generating carbon monoxide is 93%;Cell reaction carries out in process, catholyte is in recurrent state all the time, what flow out from absorption column of gas contains saturated or close to saturated gas concentration lwevel organic composite electrolyte, it is injected into bottom multicell diaphragm electrolysis apparatus cathode chamber, meanwhile, it is in the organic composite electrolyte on cathode chamber top, constantly flow out from cathode chamber, this organic composite electrolyte containing low concentration carbon dioxide is introduced again in absorption column of gas, for solution absorption carbon dioxide, gained contains saturated or close to saturated gas concentration lwevel organic composite electrolyte and is injected again bottom multicell diaphragm cell cathode chamber, it is consequently formed catholyte circulation。Control the speed that catholyte flows into, flows out multicell diaphragm cell cathode chamber, enable carbon dioxide electro-reduction reaction to carry out when continuous-stable。
As shown in Figure 1, by the multicell diaphragm electrolysis apparatus that carbon dioxide electroreduction is carbon monoxide, its composition includes absorption column of gas 1, negative electrode 2, anode 3, air accumulator 4, perfluorinated sulfonic acid ion exchange membrane 5, electrolyzer and catholyte liquid circulating device, multiple electrode chamber is divided the cell into perfluorinated sulfonic acid ion exchange membrane 5, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, the bottom of cathode chamber and anode chamber is respectively equipped with negative electrode 2 and anode 3, top, anode chamber is provided with the entrance of water, the organic composite electrolyte dissolved with carbon dioxide flowed out in absorption column of gas 1 is flowed into the bottom of cathode chamber by the pipeline of catholyte liquid circulating device, cathode chamber top returns to the top on absorption tower 1 dissolved with the organic composite electrolyte of carbon dioxide by catholyte liquid circulating device, the side of absorption column of gas 1 is provided with carbon dioxide entrance, the top of cathode chamber is connected with air accumulator 4 by pipeline。
Embodiment 3
Multicell diaphragm electrolysis method by carbon dioxide electroreduction is carbon monoxide: divide the cell into multiple electrode chamber with perfluorinated sulfonic acid ion exchange membrane, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, cathode chamber electrolyte is the organic composite electrolyte dissolved with carbon dioxide, anode chamber's electrolyte is the aqueous solution containing supporting electrolyte, electrolysis carbon dioxide is prepared carbon monoxide and is had high selective metal electrode by negative electrode employing, anode is inert electrode, in cell reaction process, negative electrode there is carbon monoxide generate, simultaneously by-product hydrogen。
Described organic composite electrolyte comprises four kinds of function components: organic solvent, organic supporting electrolyte, proton conductive reinforcing agent and eelctro-catalyst。
Described organic solvent is diethyl carbonate;Described organic supporting electrolyte is tetrabutylammonium perchlorate's quaternary ammonium salt;Described proton conductive reinforcing agent is phenol;Described eelctro-catalyst is FePC。
The supporting electrolyte of described anolyte is potassium bicarbonate。
Described anode is glass-carbon electrode, and negative electrode is Cu/Zn alloy electrode。
Implement step as follows:
Step one, organic supporting electrolyte is dissolved in organic solvent, obtain the organic electrolyte of 0.2mol/L, in organic electrolyte according to desired concn be 0.4mol/L add proton conductive reinforcing agent, it is that 0.03mol/L adds eelctro-catalyst according still further to desired concn, obtain organic composite electrolyte, carbon dioxide is dissolved in organic composite electrolyte, concentration is made to reach 0.11mol/L, gained solution is injected in diaphragm cell cathode chamber, is injected in diaphragm cell anode chamber as anolyte by the aqueous solution that supporting electrolyte concentration is 0.3mol/L;
Step 2, connect electrolysis power, controls decomposition voltage is 4.3V, under normal temperature and pressure conditions, when cell reaction carry out 2 little constantly, record generation carbon monoxide electric current density be 430A/m2, the current efficiency generating carbon monoxide is 93%;Cell reaction carries out in process, catholyte is in recurrent state all the time, what flow out from absorption column of gas contains saturated or close to saturated gas concentration lwevel organic composite electrolyte, it is injected into bottom multicell diaphragm electrolysis apparatus cathode chamber, meanwhile, it is in the organic composite electrolyte on cathode chamber top, constantly flow out from cathode chamber, this organic composite electrolyte containing low concentration carbon dioxide is introduced again in absorption column of gas, for solution absorption carbon dioxide, gained contains saturated or close to saturated gas concentration lwevel organic composite electrolyte and is injected again bottom multicell diaphragm cell cathode chamber, it is consequently formed catholyte circulation。Control the speed that catholyte flows into, flows out multicell diaphragm cell cathode chamber, enable carbon dioxide electro-reduction reaction to carry out when continuous-stable。
As shown in Figure 1, by the multicell diaphragm electrolysis apparatus that carbon dioxide electroreduction is carbon monoxide, its composition includes absorption column of gas 1, negative electrode 2, anode 3, air accumulator 4, perfluorinated sulfonic acid ion exchange membrane 5, electrolyzer and catholyte liquid circulating device, multiple electrode chamber is divided the cell into perfluorinated sulfonic acid ion exchange membrane 5, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, the bottom of cathode chamber and anode chamber is respectively equipped with negative electrode 2 and anode 3, top, anode chamber is provided with the entrance of water, the organic composite electrolyte dissolved with carbon dioxide flowed out in absorption column of gas 1 is flowed into the bottom of cathode chamber by the pipeline of catholyte liquid circulating device, cathode chamber top returns to the top of absorption column of gas 1 dissolved with the organic composite electrolyte of carbon dioxide by catholyte liquid circulating device, the side on absorption tower 1 is provided with carbon dioxide entrance, the top of cathode chamber is connected with air accumulator 4 by pipeline。
Embodiment 4
Multicell diaphragm electrolysis method by carbon dioxide electroreduction is carbon monoxide: divide the cell into multiple electrode chamber with perfluorinated sulfonic acid ion exchange membrane, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, cathode chamber electrolyte is the organic composite electrolyte dissolved with carbon dioxide, anode chamber's electrolyte is the aqueous solution containing supporting electrolyte, negative electrode adopts has high selective metal electrode to electrolysis carbon dioxide carbon monoxide, anode is inert electrode, in cell reaction process, negative electrode there is carbon monoxide generate, simultaneously by-product hydrogen。
Described organic composite electrolyte comprises four kinds of function components: organic solvent, organic supporting electrolyte, proton conductive reinforcing agent and eelctro-catalyst。
Described organic solvent is mass ratio is diethyl carbonate and the N-Methyl pyrrolidone mixture of 1:1;Described organic supporting electrolyte is mass ratio is tetrabutylammonium perchlorate's quaternary ammonium salt and the choline chloride mixture of 1:1;Described proton conductive reinforcing agent is mass ratio is the trifluoromethyl ethanol of 1:1:1, methanol and phenol mixture;Described eelctro-catalyst is CuPc and three carbonyl-2 of mass ratio 1:1,4 '-second bipyridine manganese chloride mixture。
Described supporting electrolyte is mass ratio is the potassium dihydrogen phosphate of 1:1:1, sodium dihydrogen phosphate and potassium hydrogen phosphate mixture。
Described anode is yttrium oxide coating titanium anode, and negative electrode is Cu electrode。
Implement step as follows:
Step one, organic supporting electrolyte is dissolved in organic solvent, obtain the organic electrolyte of 2.8mol/L, in organic electrolyte according to desired concn be 0.3mol/L add proton conductive reinforcing agent, it is that 0.2mol/L adds eelctro-catalyst according still further to desired concn, obtain organic composite electrolyte, carbon dioxide is dissolved in organic composite electrolyte, concentration is made to reach 0.21mol/L, gained solution is injected in diaphragm cell cathode chamber, is injected in diaphragm cell anode chamber as anolyte by the aqueous solution that supporting electrolyte concentration is 2mol/L;
Step 2, connect electrolysis power, controls decomposition voltage is 4.0V, under normal temperature and pressure conditions, when cell reaction carry out 2 little constantly, record generation carbon monoxide electric current density be 493A/m2, the current efficiency generating carbon monoxide is 94%;Cell reaction carries out in process, catholyte is in recurrent state all the time, what flow out from absorption column of gas contains saturated or close to saturated gas concentration lwevel organic composite electrolyte, it is injected into bottom multicell diaphragm electrolysis apparatus cathode chamber, meanwhile, it is in the organic composite electrolyte on cathode chamber top, constantly flow out from cathode chamber, this organic composite electrolyte containing low concentration carbon dioxide is introduced again in absorption column of gas, for solution absorption carbon dioxide, gained contains saturated or close to saturated gas concentration lwevel organic composite electrolyte and is injected again the bottom of multicell diaphragm cell cathode chamber, it is consequently formed catholyte circulation。Control the speed that catholyte flows into, flows out multicell diaphragm cell cathode chamber, enable carbon dioxide electro-reduction reaction to carry out when continuous-stable。
As shown in Figure 1, by the multicell diaphragm electrolysis apparatus that carbon dioxide electroreduction is carbon monoxide, its composition includes absorption column of gas 1, negative electrode 2, anode 3, air accumulator 4, perfluorinated sulfonic acid ion exchange membrane 5, electrolyzer and catholyte liquid circulating device, multiple electrode chamber is divided the cell into perfluorinated sulfonic acid ion exchange membrane 5, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, the bottom of cathode chamber and anode chamber is respectively equipped with negative electrode 2 and anode 3, top, anode chamber is provided with the entrance of water, the organic composite electrolyte dissolved with carbon dioxide flowed out in absorption tower 1 is flowed into the bottom of cathode chamber by the pipeline of catholyte liquid circulating device, cathode chamber top returns to the top of absorption column of gas 1 dissolved with the organic composite electrolyte of carbon dioxide by catholyte liquid circulating device, the side on absorption tower 1 is provided with carbon dioxide entrance, the top of cathode chamber is connected with air accumulator 4 by pipeline。
Above in association with accompanying drawing, detailed description of the invention of the present utility model is explained in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to make various change under the premise without departing from this utility model objective。
Claims (1)
1. one kind by multicell diaphragm electrolysis apparatus that carbon dioxide electroreduction is carbon monoxide, it is characterized in that: device includes absorption column of gas (1), negative electrode (2), anode (3), air accumulator (4), perfluorinated sulfonic acid ion exchange membrane (5), electrolyzer and catholyte liquid circulating device, perfluorinated sulfonic acid ion exchange membrane (5) is adopted to divide the cell into multiple electrode chamber, constitute the multicell diaphragm cell of cathode chamber and anode chamber's interphase distribution, the bottom of cathode chamber and anode chamber is respectively equipped with negative electrode (2) and anode (3), top, anode chamber is provided with the entrance of water, the organic composite electrolyte dissolved with carbon dioxide flowed out in absorption column of gas (1) is flowed into the bottom of cathode chamber by the pipeline of catholyte liquid circulating device, cathode chamber top returns to the top of absorption column of gas (1) dissolved with the organic composite electrolyte of carbon dioxide by catholyte liquid circulating device, the side of absorption column of gas (1) is provided with carbon dioxide entrance, the top of cathode chamber is connected with air accumulator (4) by pipeline。
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Cited By (4)
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CN105297067A (en) * | 2015-11-16 | 2016-02-03 | 昆明理工大学 | Multi-room diaphragm electrolysis method and device for electroreduction of carbon dioxide into carbon monoxide |
CN107841762A (en) * | 2016-09-19 | 2018-03-27 | 中国科学院大连化学物理研究所 | A kind of Carbon dioxide electrochemical reduction elctro-catalyst and its preparation and application |
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EP3626861A1 (en) * | 2018-09-18 | 2020-03-25 | Covestro Deutschland AG | Electrolytic cell, electrolyzer and method for the reduction of co2 |
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2015
- 2015-11-16 CN CN201520909237.1U patent/CN205329170U/en not_active Withdrawn - After Issue
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CN105297067A (en) * | 2015-11-16 | 2016-02-03 | 昆明理工大学 | Multi-room diaphragm electrolysis method and device for electroreduction of carbon dioxide into carbon monoxide |
CN105297067B (en) * | 2015-11-16 | 2018-02-09 | 昆明理工大学 | A kind of multicell diaphragm electrolysis method and apparatus by carbon dioxide electroreduction for carbon monoxide |
CN107841762A (en) * | 2016-09-19 | 2018-03-27 | 中国科学院大连化学物理研究所 | A kind of Carbon dioxide electrochemical reduction elctro-catalyst and its preparation and application |
EP3626861A1 (en) * | 2018-09-18 | 2020-03-25 | Covestro Deutschland AG | Electrolytic cell, electrolyzer and method for the reduction of co2 |
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