TW202331004A - System and method for carbon dioxide electrolysis - Google Patents
System and method for carbon dioxide electrolysis Download PDFInfo
- Publication number
- TW202331004A TW202331004A TW111101926A TW111101926A TW202331004A TW 202331004 A TW202331004 A TW 202331004A TW 111101926 A TW111101926 A TW 111101926A TW 111101926 A TW111101926 A TW 111101926A TW 202331004 A TW202331004 A TW 202331004A
- Authority
- TW
- Taiwan
- Prior art keywords
- cathode
- mixture
- anode
- liquid
- carbon dioxide
- Prior art date
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 226
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 175
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 113
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 159
- 239000000376 reactant Substances 0.000 claims abstract description 113
- 238000010521 absorption reaction Methods 0.000 claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 168
- 239000007789 gas Substances 0.000 claims description 83
- 238000002360 preparation method Methods 0.000 claims description 48
- 238000012545 processing Methods 0.000 claims description 31
- 238000000926 separation method Methods 0.000 claims description 31
- 238000010992 reflux Methods 0.000 claims description 29
- 229910052739 hydrogen Inorganic materials 0.000 claims description 25
- 239000001257 hydrogen Substances 0.000 claims description 25
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 19
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 238000003786 synthesis reaction Methods 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000003014 ion exchange membrane Substances 0.000 claims description 12
- 150000002739 metals Chemical class 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- -1 hydroxide ions Chemical class 0.000 claims description 10
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 10
- 150000004692 metal hydroxides Chemical class 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000004148 unit process Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 150000002431 hydrogen Chemical class 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910021645 metal ion Inorganic materials 0.000 claims description 7
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 150000001722 carbon compounds Chemical class 0.000 claims description 6
- 229910052741 iridium Inorganic materials 0.000 claims description 6
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052703 rhodium Inorganic materials 0.000 claims description 6
- 239000010948 rhodium Substances 0.000 claims description 6
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052707 ruthenium Inorganic materials 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910001507 metal halide Inorganic materials 0.000 claims description 4
- 150000005309 metal halides Chemical class 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 125000005587 carbonate group Chemical group 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical group OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 239000000047 product Substances 0.000 description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 230000000694 effects Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 150000002736 metal compounds Chemical class 0.000 description 6
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 125000005842 heteroatom Chemical group 0.000 description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000005341 cation exchange Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000005431 greenhouse gas Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910052779 Neodymium 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
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003011 anion exchange membrane Substances 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- REKWWOFUJAJBCL-UHFFFAOYSA-L dilithium;hydrogen phosphate Chemical compound [Li+].[Li+].OP([O-])([O-])=O REKWWOFUJAJBCL-UHFFFAOYSA-L 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
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 2
- 229910000397 disodium phosphate Inorganic materials 0.000 description 2
- 235000019800 disodium phosphate Nutrition 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- 229910001386 lithium phosphate Inorganic materials 0.000 description 2
- INHCSSUBVCNVSK-UHFFFAOYSA-L lithium sulfate Inorganic materials [Li+].[Li+].[O-]S([O-])(=O)=O INHCSSUBVCNVSK-UHFFFAOYSA-L 0.000 description 2
- HQRPHMAXFVUBJX-UHFFFAOYSA-M lithium;hydrogen carbonate Chemical compound [Li+].OC([O-])=O HQRPHMAXFVUBJX-UHFFFAOYSA-M 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 2
- 235000015497 potassium bicarbonate Nutrition 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
- 229910000160 potassium phosphate Inorganic materials 0.000 description 2
- 235000011009 potassium phosphates Nutrition 0.000 description 2
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 235000011151 potassium sulphates Nutrition 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052702 rhenium Inorganic materials 0.000 description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- 235000011008 sodium phosphates Nutrition 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 229910052714 tellurium Inorganic materials 0.000 description 2
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 2
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 239000011135 tin Substances 0.000 description 2
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- KOYBLHNUGKFRMV-UHFFFAOYSA-N 1,1,2,2-tetrafluoroethane-1,2-disulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)S(O)(=O)=O KOYBLHNUGKFRMV-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- OKIZCWYLBDKLSU-UHFFFAOYSA-M N,N,N-Trimethylmethanaminium chloride Chemical compound [Cl-].C[N+](C)(C)C OKIZCWYLBDKLSU-UHFFFAOYSA-M 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003472 fullerene Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- C25B1/01—Products
- C25B1/23—Carbon monoxide or syngas
-
- 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
-
- 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
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)
- Carbon And Carbon Compounds (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
本發明涉及一種二氧化碳的電解系統及方法,特別是涉及一種可產生合成氣體及氧氣的二氧化碳的電解系統及方法。The invention relates to a carbon dioxide electrolysis system and method, in particular to a carbon dioxide electrolysis system and method capable of producing synthesis gas and oxygen.
燃燒石化材料產生的二氧化碳氣體,是導致溫室效應的主因。為了減緩全球暖化的問題,如何將二氧化碳氣體轉換成其他可再利用的能源,是目前重要的研究發展目標之一。Carbon dioxide gas produced by burning fossil materials is the main cause of the greenhouse effect. In order to slow down the problem of global warming, how to convert carbon dioxide gas into other renewable energy sources is one of the important research and development goals at present.
在現有技術中,公開了各種還原二氧化碳的技術。其中一種技術是結合光觸媒結合水分解系統,以類似於植物光合作用系統的方式還原二氧化碳。先以光催化分解水並產生氫離子,再使用氫離子還原二氧化碳。然而,此裝置為批式反應裝置,不利於處理大量的二氧化碳。In the prior art, various technologies for reducing carbon dioxide are disclosed. One of these technologies combines photocatalysts with water-splitting systems to reduce carbon dioxide in a manner similar to plant photosynthesis systems. First, photocatalytically decomposes water and generates hydrogen ions, and then uses hydrogen ions to reduce carbon dioxide. However, this device is a batch reaction device, which is not conducive to the treatment of large amounts of carbon dioxide.
另外一種還原二氧化碳的技術,是將二氧化碳溶於電解液中,以電催化(electrocatalysis)的方式還原二氧化碳。然而,二氧化碳的擴散能力及濃度會受時間影響,進而影響二氧化碳的轉化率。並且,二氧化碳的還原產物中包含了多種碳氫化合物,例如甲烷、甲醇、乙烷、乙醇、乙酸或乙烯等產物,但並非全部產物皆可作為燃料,或作為其他化學品的基礎原料,故尚需經多個分離及純化的步驟,而有步驟繁複的缺點。Another technology for reducing carbon dioxide is to dissolve carbon dioxide in the electrolyte and reduce carbon dioxide by electrocatalysis. However, the diffusion ability and concentration of carbon dioxide will be affected by time, which in turn affects the conversion rate of carbon dioxide. Moreover, the reduction products of carbon dioxide include a variety of hydrocarbons, such as methane, methanol, ethane, ethanol, acetic acid, or ethylene, but not all of them can be used as fuels or as basic raw materials for other chemicals. Multiple steps of separation and purification are required, which has the disadvantage of complicated steps.
因此,如何還原二氧化碳,以減緩溫室效應的問題,並使二氧化碳的還原產物成分單純且可被再利用,已成為該項事業所欲解決的重要課題之一。Therefore, how to reduce carbon dioxide to alleviate the problem of the greenhouse effect and make the carbon dioxide reduction products pure and reusable has become one of the important issues to be solved by this project.
本發明所要解決的技術問題在於,針對現有技術的不足提供一種二氧化碳的電解系統及方法。The technical problem to be solved by the present invention is to provide a carbon dioxide electrolysis system and method in view of the deficiencies in the prior art.
為了解決上述的技術問題,本發明所採用的其中一技術方案是提供一種二氧化碳的電解系統。二氧化碳的電解系統包括一電化學電解設備以及與電化學電解設備流體連通的一吸收單元。電化學電解設備電解一陰極反應物與一陽極反應物,以分別形成一陰極混合物與一陽極混合物。陰極反應物包括二氧化碳或是包含碳酸氫根或碳酸根的化合物,陰極混合物包括一氧化碳及氫氣,陽極混合物包括氧氣。吸收單元處理陰極混合物,以分離出包括一氧化碳及氫氣的一合成氣體。In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide an electrolysis system for carbon dioxide. The carbon dioxide electrolysis system includes an electrochemical electrolysis device and an absorption unit in fluid communication with the electrochemical electrolysis device. The electrochemical electrolysis device electrolyzes a cathode reactant and an anode reactant to form a cathode mixture and an anode mixture respectively. The cathode reactant includes carbon dioxide or a compound containing bicarbonate or carbonate, the cathode mixture includes carbon monoxide and hydrogen, and the anode mixture includes oxygen. The absorption unit processes the cathode mixture to separate a synthesis gas including carbon monoxide and hydrogen.
於一些實施例中,吸收單元將陰極混合物區分為一陰極氣體產物與一回流液,陰極氣體產物包括合成氣體,回流液包含碳酸氫根、碳酸根或氫氧根,回流液回流至電化學電解設備。In some embodiments, the absorption unit divides the cathode mixture into a cathode gas product comprising synthesis gas and a reflux liquid comprising bicarbonate, carbonate or hydroxide, and a reflux liquid which is returned to the electrochemical electrolysis equipment.
於一些實施例中,二氧化碳的電解系統進一步包括:一第一反應物配製單元,第一反應物配製單元流體連通於電化學電解設備以及吸收單元之間,第一反應物配製單元接收回流液,並提供陰極反應物至電化學電解設備。In some embodiments, the carbon dioxide electrolysis system further includes: a first reactant preparation unit, the first reactant preparation unit is fluidly connected between the electrochemical electrolysis device and the absorption unit, the first reactant preparation unit receives the reflux liquid, And provide the cathode reactant to the electrochemical electrolysis device.
於一些實施例中,陰極混合物包括一陰極氣體混合物與一陰極液體混合物,吸收單元處理陰極氣體混合物。In some embodiments, the cathode mixture includes a cathode gas mixture and a cathode liquid mixture, and the absorption unit processes the cathode gas mixture.
於一些實施例中,陰極混合物包括一陰極液體混合物,陰極液體混合物包含金屬離子、氫氧根離子或金屬氫氧化物。In some embodiments, the cathode mixture includes a cathode liquid mixture that includes metal ions, hydroxide ions, or metal hydroxides.
於一些實施例中,二氧化碳的電解系統進一步包括:一第一氣液分離單元,第一氣液分離單元流體連通於電化學電解設備以及吸收單元之間,第一氣液分離單元將陰極混合物區分為陰極氣體混合物與陰極液體混合物。In some embodiments, the carbon dioxide electrolysis system further includes: a first gas-liquid separation unit, the first gas-liquid separation unit is fluidly connected between the electrochemical electrolysis device and the absorption unit, and the first gas-liquid separation unit separates the cathode mixture It is a mixture of cathode gas and cathode liquid.
於一些實施例中,二氧化碳的電解系統進一步包括:一第一液體處理單元,第一液體處理單元與電化學電解設備流體連通,第一液體處理單元處理陰極液體混合物以產生一第一處理液,第一處理液回流至電化學電解設備。In some embodiments, the carbon dioxide electrolysis system further includes: a first liquid processing unit, the first liquid processing unit is in fluid communication with the electrochemical electrolysis device, the first liquid processing unit processes the cathode liquid mixture to generate a first processing liquid, The first treatment liquid is returned to the electrochemical electrolysis device.
於一些實施例中,二氧化碳的電解系統進一步包括:一第一反應物配製單元,第一反應物配製單元流體連通於電化學電解設備以及第一液體處理單元之間,第一反應物配製單元接收第一處理液,並提供陰極反應物至電化學電解設備。In some embodiments, the carbon dioxide electrolysis system further includes: a first reactant preparation unit, the first reactant preparation unit is fluidly connected between the electrochemical electrolysis device and the first liquid processing unit, and the first reactant preparation unit receives The first treatment solution and provides the cathode reactant to the electrochemical electrolysis device.
於一些實施例中,陽極混合物包括一陽極氣體混合物與一陽極液體混合物。In some embodiments, the anode mixture includes an anode gas mixture and an anode liquid mixture.
於一些實施例中,二氧化碳的電解系統進一步包括:一第二氣液分離單元,第二氣液分離單元流體連通於電化學電解設備,第二氣液分離單元將陽極混合物區分為陽極氣體混合物與陽極液體混合物。In some embodiments, the carbon dioxide electrolysis system further includes: a second gas-liquid separation unit, the second gas-liquid separation unit is fluidly connected to the electrochemical electrolysis device, and the second gas-liquid separation unit divides the anode mixture into anode gas mixture and Anode liquid mixture.
於一些實施例中,二氧化碳的電解系統進一步包括:一第二液體處理單元,第二液體處理單元與電化學電解設備流體連通,第二液體處理單元處理陽極液體混合物以產生一第二處理液,第二處理液回流至電化學電解設備。In some embodiments, the carbon dioxide electrolysis system further includes: a second liquid processing unit, the second liquid processing unit is in fluid communication with the electrochemical electrolysis device, the second liquid processing unit processes the anode liquid mixture to generate a second processing liquid, The second treatment liquid is returned to the electrochemical electrolysis device.
於一些實施例中,二氧化碳的電解系統進一步包括:一第二反應物配製單元,第二反應物配製單元流體連通於電化學電解設備以及第二液體處理單元之間,第二反應物配製單元接收第二處理液,並提供陽極反應物給電化學電解設備。In some embodiments, the carbon dioxide electrolysis system further includes: a second reactant preparation unit, the second reactant preparation unit is fluidly connected between the electrochemical electrolysis device and the second liquid processing unit, and the second reactant preparation unit receives The second treatment liquid, and provide the anode reactant to the electrochemical electrolysis device.
於一些實施例中,電化學電解設備包括多個電解單元;其中,每一電解單元包括位於一陰極腔室內的一陰極電極、位於一陽極腔室內的一陽極電極以及夾設於陰極電極與陽極電極之間的一離子交換膜。In some embodiments, the electrochemical electrolysis device includes a plurality of electrolysis units; wherein, each electrolysis unit includes a cathode electrode located in a cathode chamber, an anode electrode located in an anode chamber, and an electrode between the cathode electrode and the anode An ion exchange membrane between the electrodes.
於一些實施例中,陰極電極設置於陰極腔室,陰極電極上形成有一陰極觸媒,陽極電極設置於陽極腔室,陽極電極上形成有一陽極觸媒,每兩個相鄰的電解單元以一絕緣板間隔;其中,所述陰極觸媒的材料包含鐵、鈷、鎳、銅、釕、銠、銀、銥、鉑、金、鈦或包含上述任一種金屬的碳化合物,所述陽極觸媒的材料包含釕、銠、銥、鈦或包含上述任一種金屬的金屬鹵化物、金屬氧化物或金屬氫氧化物。In some embodiments, the cathode electrode is arranged in the cathode chamber, a cathode catalyst is formed on the cathode electrode, the anode electrode is arranged in the anode chamber, an anode catalyst is formed on the anode electrode, and every two adjacent electrolytic cells are formed with a insulation plate interval; wherein, the material of the cathode catalyst comprises iron, cobalt, nickel, copper, ruthenium, rhodium, silver, iridium, platinum, gold, titanium or carbon compounds comprising any of the above metals, the anode catalyst The material comprises ruthenium, rhodium, iridium, titanium or a metal halide, metal oxide or metal hydroxide comprising any of the above metals.
於一些實施例中,陰極腔室具有用以接收陰極反應物的一入口以及用以排放陰極混合物的一出口,陽極腔室具有一入口以接收陽極反應物以及一出口以排放陽極混合物。In some embodiments, the cathode chamber has an inlet for receiving the cathode reactant and an outlet for discharging the cathode mixture, and the anode chamber has an inlet for receiving the anode reactant and an outlet for discharging the anode mixture.
於一些實施例中,陰極腔室具有一入口以接收陰極反應物以及兩個出口以排放陰極混合物,陽極腔室具有一入口以接收陽極反應物以及兩個出口以排放陽極混合物。In some embodiments, the cathode chamber has an inlet for receiving the cathode reactant and two outlets for discharging the cathode mixture, and the anode chamber has an inlet for receiving the anode reactant and two outlets for discharging the anode mixture.
於一些實施例中,陰極反應物還包括一陰極電解液,陰極電解液中包含碳酸氫根或碳酸根;陽極反應物還包括一陽極電解液,陽極電解液中包含碳酸氫根、碳酸根或氫氧根。In some embodiments, the cathode reactant also includes a catholyte, which contains bicarbonate or carbonate; the anode reactant also includes an anolyte, which contains bicarbonate, carbonate or Hydroxide.
為了解決上述的技術問題,本發明所採用的另外一技術方案是提供一種二氧化碳的電解方法。二氧化碳的電解方法包括:使用一電化學電解設備電解一陰極反應物與一陽極反應物,以分別形成一陰極混合物與一陽極混合物;以及使用一吸收單元處理陰極混合物,以分離出包括一氧化碳及氫氣的一合成氣體。其中,陰極反應物包括二氧化碳或含碳酸根或碳酸氫根的化合物,陰極混合物包括一氧化碳及氫氣,陽極混合物包括氧氣。In order to solve the above technical problems, another technical solution adopted by the present invention is to provide an electrolysis method for carbon dioxide. The electrolysis method of carbon dioxide comprises: using an electrochemical electrolysis device to electrolyze a cathode reactant and an anode reactant to form a cathode mixture and an anode mixture respectively; and using an absorption unit to process the cathode mixture to separate carbon monoxide and hydrogen of a synthetic gas. Wherein, the cathode reactant includes carbon dioxide or compounds containing carbonate or bicarbonate, the cathode mixture includes carbon monoxide and hydrogen, and the anode mixture includes oxygen.
於一些實施例中,吸收單元處理陰極混合物後,將陰極混合物區分為一陰極氣體產物與一回流液,陰極氣體產物包括合成氣體,回流液中包含碳酸氫根、碳酸根或氫氧根;二氧化碳的電解方法進一步包括:將回流液回流至電化學電解設備。In some embodiments, after the absorption unit processes the cathode mixture, the cathode mixture is divided into a cathode gas product and a reflux liquid, the cathode gas product includes synthesis gas, and the reflux liquid contains bicarbonate, carbonate or hydroxide; carbon dioxide The electrolysis method further includes: returning the reflux liquid to the electrochemical electrolysis device.
於一些實施例中,二氧化碳的電解方法進一步包括:輸送回流液至一第一反應物配製單元,第一反應物配製單元提供陰極反應物給電化學電解設備。In some embodiments, the carbon dioxide electrolysis method further includes: sending the reflux liquid to a first reactant preparation unit, and the first reactant preparation unit provides the cathode reactant to the electrochemical electrolysis device.
於一些實施例中,陰極混合物包含包括一陰極氣體混合物與一陰極液體混合物,陰極液體混合物包含金屬離子、氫氧根離子或金屬氫氧化物。In some embodiments, the cathode mixture includes a cathode gas mixture and a cathode liquid mixture, and the cathode liquid mixture includes metal ions, hydroxide ions or metal hydroxides.
本發明的其中一有益效果在於,本發明所提供的二氧化碳的電解系統及方法,其能通過“所述陰極反應物包括二氧化碳或含碳酸根或碳酸氫根的化合物,所述陰極混合物包括一氧化碳及氫氣,所述陽極混合物包括氧氣”以及“吸收單元處理所述陰極混合物,並分離出包括一氧化碳及氫氣的一合成氣體”的技術方案,而具有可分解溫室氣體(二氧化碳),還產生了可作為燃料的合成氣體(一氧化碳與氫氣)的效果。One of the beneficial effects of the present invention is that the carbon dioxide electrolysis system and method provided by the present invention can pass through "the cathode reactant includes carbon dioxide or a compound containing carbonate or bicarbonate, and the cathode mixture includes carbon monoxide and Hydrogen, the anode mixture includes oxygen" and "absorption unit processes the cathode mixture and separates a synthesis gas including carbon monoxide and hydrogen", while having a decomposing greenhouse gas (carbon dioxide), also produces a gas that can be used as The effect of syngas (carbon monoxide and hydrogen) on the fuel.
為使能更進一步瞭解本發明的特徵及技術內容,請參閱以下有關本發明的詳細說明與圖式,然而所提供的圖式僅用於提供參考與說明,並非用來對本發明加以限制。In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the provided drawings are only for reference and description, and are not intended to limit the present invention.
以下是通過特定的具體實施例來說明本發明所公開有關“二氧化碳的電解系統及方法”的實施方式,本領域技術人員可由本說明書所公開的內容瞭解本發明的優點與效果。本發明可通過其他不同的具體實施例加以施行或應用,本說明書中的各項細節也可基於不同觀點與應用,在不背離本發明的構思下進行各種修改與變更。另外,本發明的附圖僅為簡單示意說明,並非依實際尺寸的描繪,事先聲明。以下的實施方式將進一步詳細說明本發明的相關技術內容,但所公開的內容並非用以限制本發明的保護範圍。另外,本文中所使用的術語“或”,應視實際情況可能包括相關聯的列出項目中的任一個或者多個的組合。The following are specific examples to illustrate the implementation of the "carbon dioxide electrolysis system and method" disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.
本發明提供了一種二氧化碳的電解系統,其包括流體連通的一電化學電解設備與一吸收單元。電化學電解設備是用來還原二氧化碳,以達到減緩溫室效應問題的效果,並可同時產生具有商業用途的鹼性液態產物。吸收單元是用來分離二氧化碳及二氧化碳還原後的產物,以獲得高含量的合成氣體(一氧化碳與氫氣的混合氣體),而可直接利用還原產物作為燃料使用。除了合成氣體之外,陰極產生的氣相產物還可包括甲烷、乙烷、乙烯或其混合物,但仍以合成氣體為主要成分。The invention provides a carbon dioxide electrolysis system, which includes an electrochemical electrolysis device and an absorption unit in fluid communication. Electrochemical electrolysis equipment is used to reduce carbon dioxide to achieve the effect of mitigating the greenhouse effect problem, and can simultaneously produce alkaline liquid products for commercial use. The absorption unit is used to separate carbon dioxide and carbon dioxide reduction products to obtain high-content synthesis gas (mixed gas of carbon monoxide and hydrogen), and the reduction products can be directly used as fuel. In addition to synthesis gas, the gas phase products produced by the cathode may also include methane, ethane, ethylene or mixtures thereof, but still have synthesis gas as the main component.
本發明的電化學電解設備可電解一陰極反應物與一陽極反應物,並分別形成一陰極混合物與一陽極混合物。具體來說,陰極反應物中包括二氧化碳氣體與一陰極電解液,陽極反應物中包括一陽極電解液。陰極反應物在陰極發生的半反應為: 以及 ;陽極反應物在陽極發生的半反應為: 。經電解之後,陰極混合物中會包含電解反應產生的一氧化碳與氫氣以及陰極電解液。陽極混合物中包括電解產生的氧氣以及陽極電解液。 The electrochemical electrolysis device of the present invention can electrolyze a cathode reactant and an anode reactant to form a cathode mixture and an anode mixture respectively. Specifically, the cathode reactant includes carbon dioxide gas and a catholyte, and the anode reactant includes an anolyte. The half-reaction of the cathode reactant at the cathode is: as well as ; The half-reaction of the anode reactant at the anode is: . After electrolysis, the cathode mixture will contain the carbon monoxide and hydrogen produced by the electrolysis reaction and the catholyte. The anode mixture includes oxygen produced by electrolysis and the anolyte.
由於本發明於陰極通入的是二氧化碳氣體,故不會有受限於二氧化碳在水溶液中的擴散速度慢,而導致二氧化碳轉化率低以及電解反應不穩定的問題。並且,電解反應所產生的陰極混合物包括高含量的合成氣體,可直接作為燃料。再通過吸收單元的使用,可吸收陰極混合物中未經電解的二氧化碳,進一步獲得高純度的合成氣體。Since the present invention feeds carbon dioxide gas into the cathode, there is no problem of low carbon dioxide conversion rate and unstable electrolytic reaction due to the slow diffusion rate of carbon dioxide in the aqueous solution. Also, the cathode mixture produced by the electrolysis reaction includes a high content of synthesis gas, which can be directly used as fuel. Then, through the use of the absorption unit, the carbon dioxide that has not been electrolyzed in the cathode mixture can be absorbed to further obtain high-purity synthesis gas.
由此可知,本發明的二氧化碳的電解系統在陰極處可將二氧化碳轉化成一氧化碳與氫氣,不僅可分解溫室氣體(二氧化碳),還產生了可作為燃料的合成氣體(一氧化碳與氫氣)。由於合成氣體的濃度高,故無需經過繁複的分離或純化步驟,可直接作為燃料或是其他化學品的基礎原料。於其他實施例中,陰極反應物也可以是包含碳酸氫根或碳酸根的化合物。It can be seen that the carbon dioxide electrolysis system of the present invention can convert carbon dioxide into carbon monoxide and hydrogen at the cathode, not only decompose greenhouse gas (carbon dioxide), but also produce synthetic gas (carbon monoxide and hydrogen) that can be used as fuel. Due to the high concentration of synthetic gas, it can be directly used as a basic raw material for fuel or other chemicals without complicated separation or purification steps. In other embodiments, the cathode reactant may also be a compound containing bicarbonate or carbonate.
前述的陰極電解液可以是含有氫氧化鈉、溴化鈉、碳酸氫鈉、硫酸鈉、磷酸鈉、磷酸氫鈉、氫氧化鋰、溴化鋰、碳酸氫鋰、硫酸鋰、磷酸鋰、磷酸氫鋰、氫氧化鉀、溴化鉀、碳酸氫鉀、硫酸鉀、磷酸鉀、磷酸氫鉀或其任意組合的電解質的水溶液。於一較佳實施例中,陰極電解液中包含碳酸氫根或碳酸根,較佳的,陰極電解液是含有碳酸氫鈉的水溶液。並且,陰極電解液中電解質的濃度最低為0.001M,最高可達電解質的飽和濃度。Aforesaid catholyte can contain sodium hydroxide, sodium bromide, sodium bicarbonate, sodium sulfate, sodium phosphate, sodium hydrogen phosphate, lithium hydroxide, lithium bromide, lithium bicarbonate, lithium sulfate, lithium phosphate, lithium hydrogen phosphate, An aqueous solution of an electrolyte of potassium hydroxide, potassium bromide, potassium bicarbonate, potassium sulfate, potassium phosphate, potassium hydrogenphosphate, or any combination thereof. In a preferred embodiment, the catholyte contains bicarbonate or carbonate, preferably, the catholyte is an aqueous solution containing sodium bicarbonate. Also, the concentration of the electrolyte in the catholyte is as low as 0.001M and as high as the saturation concentration of the electrolyte.
前述的陽極電解液可以是含有氫氧化鈉、溴化鈉、碳酸氫鈉、硫酸鈉、磷酸鈉、磷酸氫鈉、氫氧化鋰、溴化鋰、碳酸氫鋰、硫酸鋰、磷酸鋰、磷酸氫鋰、氫氧化鉀、溴化鉀、碳酸氫鉀、硫酸鉀、磷酸鉀、磷酸氫鉀或其任意組合的電解質的水溶液。於一較佳實施例中,陽極電解液中包含碳酸氫根或碳酸根,較佳的,陽極電解液是含有碳酸氫鈉的水溶液。並且,陽極電解液中電解質的濃度最低為0.001M,最高可達電解質的飽和濃度。The aforesaid anolyte can contain sodium hydroxide, sodium bromide, sodium bicarbonate, sodium sulfate, sodium phosphate, sodium hydrogen phosphate, lithium hydroxide, lithium bromide, lithium bicarbonate, lithium sulfate, lithium phosphate, lithium hydrogen phosphate, An aqueous solution of an electrolyte of potassium hydroxide, potassium bromide, potassium bicarbonate, potassium sulfate, potassium phosphate, potassium hydrogenphosphate, or any combination thereof. In a preferred embodiment, the anolyte contains bicarbonate or carbonate, preferably, the anolyte is an aqueous solution containing sodium bicarbonate. Also, the concentration of the electrolyte in the anolyte solution is as low as 0.001M and as high as the saturation concentration of the electrolyte.
[第一實施例][first embodiment]
請參閱圖1所示,本發明第一實施例提供一種二氧化碳的電解系統,其包括:電化學電解設備1、一第一反應物配製單元2、一第二反應物配製單元3、一第一氣液分離單元4、一第二氣液分離單元5以及吸收單元6。Please refer to Fig. 1, the first embodiment of the present invention provides a carbon dioxide electrolysis system, which includes:
電化學電解設備1與第一反應物配製單元2流體連通,以接收第一反應物配製單元2提供的陰極反應物A1。電化學電解設備1與第二反應物配製單元3流體連通,以接收第二反應物配製單元3提供的陽極反應物A2。電化學電解設備1電解陰極反應物A1與陽極反應物A2,並分別形成陰極混合物B1與陽極混合物B2。其中,陰極反應物A1是第一反應物配製單元2在接收陰極電解液E1以及二氧化碳氣體後配製而成,陽極反應物A2是第二反應物配製單元3在接收陽極電解液E2後配製而成。The
電化學電解設備1與第一氣液分離單元4流體連通,以分離陰極混合物B1中的氣相成分與液相成分。陰極混合物B1可被第一氣液分離單元4區分為一陰極氣體混合物V1與一陰極液體混合物L1。具體來說,陰極氣體混合物V1中包括二氧化碳、一氧化碳及氫氣,陰極液體混合物L1中包含陰極電解液E1。於一示範實施例中,陰極液體混合物L1中可包含液態氫氧化鈉以及陰極電解液E1,也就是說,陰極液體混合物L1中包含金屬離子、氫氧根離子或金屬氫氧化物。由此可知,本發明的二氧化碳的電解系統,可同時產生具有經濟價值的陰極氣體混合物V1以及陰極液體混合物L1。The
電化學電解設備1與第二氣液分離單元5流體連通,以分離陽極混合物B2中的氣相成分與液相成分。陽極混合物B2可被第二氣液分離單元5區分為一陽極氣體混合物V2與一陽極液體混合物L2。具體來說,陽極氣體混合物V2中包括氧氣,陽極液體混合物L2中包含陽極電解液E2。The
吸收單元6與第一氣液分離單元4流體連通,以處理陰極氣體混合物V1,吸收單元6吸收陰極氣體混合物V1中的二氧化碳,以分離出一氧化碳與氫氣。具體來說,將陰極電解液E1通入吸收單元6,並使陰極電解液E1與陰極氣體混合物V1接觸,此時,二氧化碳會由陰極氣體混合物V1溶於陰極電解液E1中。The
因此,陰極氣體混合物V1與陰極電解液E1接觸後,會形成一陰極氣體產物P1與一回流液R1。陰極氣體產物P1包括一氧化碳與氫氣。回流液R1中包含了陰極電解液E1與二氧化碳,或進一步包括液態氫氧化鈉(或以液鹼概稱),因此,可將回流液R1回流至電化學電解設備1,當作陰極反應物A1重複利用。於一較佳實施例中,先將回流液R1輸送至第一反應物配製單元2,經適當調配後再輸送至電化學電解設備1。具體來說,回流液R1中包含碳酸氫根、碳酸根或氫氧根。Therefore, after the cathode gas mixture V1 contacts the catholyte E1, a cathode gas product P1 and a reflux liquid R1 are formed. Cathode gas product P1 includes carbon monoxide and hydrogen. The reflux liquid R1 contains catholyte E1 and carbon dioxide, or further includes liquid sodium hydroxide (or liquid caustic), therefore, the reflux liquid R1 can be returned to the
電化學電解設備1與吸收單元6可構成一循環管路,使得本發明的二氧化碳的電解系統可穩定產生具有經濟價值的陰極氣體產物P1與陰極液體混合物L1,並可提升陰極反應物A1的使用效率。請合併參閱圖2、3所示,本發明的化學電解設備1包括多個電解單元10。在第一實施例中,多個電解單元10並聯排列,且每兩個相鄰的電解單元10之間以一絕緣板13間隔。於一些實施例中,電解單元10的數量為3至30個。The
需特別說明的是,圖2中例示的是串聯排列的電解單元10,但實際應用時並不限於此,多個電解單元10也可以並聯的方式排列。舉例來說,數個電解單元10可先以串聯方式排列形成一電解模組,接著,再將數個電解模組以並聯方式連接,構成一電解組件,以提升二氧化碳氣體的處理量和/或提升陰極氣體產物P1的濃度。It should be noted that the
請合併參閱圖2及圖3所示,每一電解單元10包括位於一陰極腔室11的一陰極電極14、位於一陽極腔室12的一陽極電極15以及夾設於陰極電極14與陽極電極15之間的一離子交換膜20。Please refer to Fig. 2 and Fig. 3 together, each
每一陰極腔室11在一入口側上形成有一入口111,以接收陰極反應物A1,每一陰極腔室11在一出口側上形成有一出口112,以排放陰極混合物B1,且入口側與出口側彼此相對。每一陽極腔室12在一入口側上形成有一入口121,以接收陽極反應物A2,每一陽極腔室12在一出口側上形成有一出口122,以排放陽極混合物B2,且入口側與出口側彼此相對。Each
於一些實施例中,各個陰極腔室11的入口111以一管線相互連接,以同時注入陰極反應物A1,各個陽極腔室12的入口121以另一管線相互連接,以同時注入陽極反應物A2。陰極腔室11的入口111與陽極腔室12的入口121不連通。類似的,各個陰極腔室11的出口112以一管線相互連接,以使各個電解單元10產生的電解產物匯流形成陰極混合物B1。各個陽極腔室12的出口122以另一管線相互連接,以使各個電解單元10產生的電解產物匯流形成陽極混合物B2。陰極腔室11的出口112與陽極腔室12的出口122不相通。In some embodiments, the
入口111、121可以形成於陰極腔室11或陽極腔室12的任意位置,一般來說,入口111、121形成於陰極腔室11或陽極腔室12接近底部的位置。並且,相較於入口111、121的位置,出口112、122的位置位於較高的高度。舉例來說:入口111、121可形成於接近電解單元10底部的位置,而出口112、122可形成於電解單元10高度一半或以上的位置。然而,本發明不以此為限。The
請參閱圖3所示,陰極電極14設置於陰極腔室11上,陰極電極14於面向離子交換膜20的一平面上形成有一陰極觸媒141,以促使還原反應的發生。陰極電極14的另一平面位於陰極腔室11內,並與陰極反應物A1接觸。陽極電極15設置於陽極腔室12上,陽極電極15於面向離子交換膜20的一平面上形成有一陽極觸媒151,以促使氧化反應的發生。陽極電極15的另一平面位於陽極腔室12內,並與陽極反應物A2接觸。一外部電源可施加電能於陰極電極14以及陽極電極15上,以進行電解。Please refer to FIG. 3 , the
為了避免電解單元10的陰極電極14與相鄰的電解單元10的陽極電極15接觸,在相鄰的電解單元10之間設置絕緣板13完全隔開。如此一來,當外部施加電壓於陰極電極14與陽極電極15上時,可確保陰極電極14不會與陽極電極15接觸,以避免短路的發生。In order to prevent the
於本發明中,陰極電極14可以是一緻密網狀結構,且形成陰極電極14的材料可以是一導電材料,例如金屬或碳材。陽極電極15可以是一緻密網狀結構,且形成陽極電極15的材料可以是一導電材料,例如金屬或碳材。In the present invention, the
陰極觸媒141可以是各種金屬、金屬化合物、合金、含雜原子或金屬中至少一者的碳化合物或其任意組合。金屬可以是釩、鉻、錳、鐵、鈷、鎳、銅、錫、鋯、鈮、鉬、釕、銠、鈀、銀、鎘、鉿、鉭、鎢、錸、銥、鉑、金、鋁、銦、鈦、鉛、鉍、銻、碲、鑭、鈰、釹或其組合物。金屬化合物包括有機金屬化合物與無機金屬化合物,並涵蓋金屬鹵化物、金屬氧化物及金屬氫氧化物。含雜原子或金屬中至少一者的碳化合物可以是含氮石墨、含氮石墨烯或含氮碳管與金屬原子構成的結構。The
陽極觸媒151可以是各種金屬、金屬化合物、合金、含雜原子或金屬中至少一者的碳化合物或其任意組合。金屬可以是釩、鉻、錳、鐵、鈷、鎳、銅、錫、鋯、鈮、鉬、釕、銠、鈀、銀、鎘、鉿、鉭、鎢、錸、銥、鉑、金、鋁、銦、鈦、鉛、鉍、銻、碲、鑭、鈰、釹或其組合物。金屬化合物包括有機金屬化合物與無機金屬化合物,並涵蓋金屬鹵化物、金屬氧化物及金屬氫氧化物。含雜原子或金屬中至少一者的碳化合物可以是含氮石墨、含氮石墨烯或含氮碳管與金屬原子構成的結構。The
離子交換膜20的厚度為10微米至5000微米,離子交換膜20的面積大於陰極電極14或陽極電極15的面積。離子交換膜20可以是陽離子交換膜,例如:包含聚乙烯磺酸、富勒烯交聯的聚磺酸、聚丙烯酸或全氟乙二磺酸的陽離子交換膜;或者,離子交換膜20可以是陰離子交換膜,例如:包含聚苯乙烯甲基三甲基氯化銨或聚醚的陰離子交換膜。The thickness of the
於一示範實施例中,離子交換膜20是陽離子交換膜。陽極電解液中的金屬離子(例如:鈉離子),可穿過離子交換膜20,進入陰極腔室11中,並與氫氧根形成液鹼(例如:液態氫氧化鈉)。如此一來,陰極液體混合物L1便可包含液態氫氧化鈉,如前所述,陰極液體混合物L1可包括金屬離子、氫氧根離子或或金屬氫氧化物。In an exemplary embodiment,
[第二實施例][Second embodiment]
請參閱圖4所示,本發明第二實施例提供一種二氧化碳的電解系統,其與第一實施例的二氧化碳的電解系統相似,主要差異在於:第二實施例的二氧化碳的電解系統進一步包括一第一液體處理單元7與一第二液體處理單元8。Please refer to Fig. 4, the second embodiment of the present invention provides a carbon dioxide electrolysis system, which is similar to the carbon dioxide electrolysis system in the first embodiment, the main difference is that the carbon dioxide electrolysis system in the second embodiment further includes a first A
第一液體處理單元7與第一氣液分離單元4流體連通,以接收並適當處理陰極液體混合物L1。陰極液體混合物L1經第一液體處理單元7處理後可形成一第一處理液R1*,第一處理液R1*中的主要成分是陰極電解液E1,因此,第一處理液R1*可回流至電化學電解設備1,當作陰極反應物A1重複利用。於一較佳實施例中,可先將第一處理液R1*輸送至第一反應物配製單元2,經適當調配後再輸送至電化學電解設備1。具體來說,回流液R1*中包含碳酸氫根、碳酸根或氫氧根。The first
第二液體處理單元8與第二氣液分離單元5流體連通,以接收並適當處理陽極液體混合物L2。陽極液體混合物L2經第二液體處理單元8處理後可形成一第二處理液R2*,第二處理液R2*中的主要成分是陽極電解液E2,因此,第二處理液R2*可回流至電化學電解設備1,當作陽極反應物A2重複利用。於一較佳實施例中,可先將第二處理液R2*輸送至第二反應物配製單元3,經適當調配後再輸送至電化學電解設備1。The second
[第三實施例][Third embodiment]
請合併參閱圖5及圖6所示,本發明第三實施例提供一種二氧化碳的電解系統,其與第一實施例的二氧化碳的電解系統相似,主要差異在於:第三實施例的二氧化碳的電解系統不包含第一氣液分離單元4與第二氣液分離單元5。Please refer to Fig. 5 and Fig. 6 together, the third embodiment of the present invention provides a carbon dioxide electrolysis system, which is similar to the carbon dioxide electrolysis system in the first embodiment, the main difference is: the carbon dioxide electrolysis system in the third embodiment The first gas-
請參閱圖6所示,在第三實施例中,每一陰極腔室11具有兩個出口112A、112B,且兩個出口112A、112B形成於不同高度位置上。高度位置較高的出口112A可用來排放陰極氣體混合物V1,而高度位置較低的出口112B可用來排放陰極液體混合物L1。每一陽極腔室12具有兩個出口112A、112B,且兩個出口112A、112B形成於不同高度位置上。高度位置較高的出口122A可用來排放陽極氣體混合物V2,而高度位置較低的出口122B可用來排放陽極液體混合物L2。如此一來,便可省略第一液體處理單元7與第二液體處理單元8的使用。Please refer to FIG. 6 , in the third embodiment, each
值得注意的是,第三實施例的二氧化碳的電解系統在使用時,需維持陰極腔室11及陽極腔室12內的液體高度呈現半滿或超過半滿的狀態,以達到區分陰極氣體混合物V1與陰極液體混合物L1,以及區分陽極氣體混合物V2與陽極液體混合物L2的效果。It is worth noting that, when the carbon dioxide electrolysis system of the third embodiment is in use, it is necessary to maintain the liquid height in the
除了第一氣液分離單元4與第二氣液分離單元5之外,第三實施例中二氧化碳的電解系統具有與第一實施例中二氧化碳的電解系統相似的電化學電解設備1、第一反應物配製單元2、第二反應物配製單元3以及吸收單元6,故於此不再贅述。In addition to the first gas-
[第四實施例][Fourth embodiment]
請參閱圖7所示,本發明第四實施例提供一種二氧化碳的電解系統,其與第三實施例的二氧化碳的電解系統相似,主要差異在於:第四實施例的二氧化碳的電解系統進一步包含第一液體處理單元7與第二液體處理單元8。Please refer to Fig. 7, the fourth embodiment of the present invention provides a carbon dioxide electrolysis system, which is similar to the carbon dioxide electrolysis system in the third embodiment, the main difference is that the carbon dioxide electrolysis system in the fourth embodiment further includes the first The
第一液體處理單元7與電化學電解設備1流體連通,以接收並適當處理陰極液體混合物L1。陰極液體混合物L1經第一液體處理單元7處理後可形成一第一處理液R1*,第一處理液R1*中的主要成分是陰極電解液E1,因此,第一處理液R1*可回流至電化學電解設備1,當作陰極反應物A1重複利用。於一較佳實施例中,可先將第一處理液R1*輸送至第一反應物配製單元2,經適當調配後再輸送至電化學電解設備1。The first
第二液體處理單元8與電化學電解設備1流體連通,以接收並適當處理陽極液體混合物L2。陽極液體混合物L2經第二液體處理單元8處理後可形成一第二處理液R2*,第二處理液R2*中的主要成分是陽極電解液E2,因此,第二處理液R2*可回流至電化學電解設備1,當作陽極反應物A2重複利用。於一較佳實施例中,可先將第二處理液R2*輸送至第二反應物配製單元3,經適當調配後再輸送至電化學電解設備1。The second
請參閱圖8所示,本發明另提供一種二氧化碳的電解方法,其包括:使用一電化學電解設備電解一陰極反應物與一陽極反應物,以分別形成一陰極混合物與一陽極混合物(步驟S1);使用一吸收單元處理陰極混合物,將陰極混合物區分為一陰極氣體產物與一回流液(步驟S2);輸送回流液至一第一反應物配製單元(步驟S3);第一反應物配製單元接收回流液後,提供陰極反應物給電化學電解設備(步驟S4)。Please refer to FIG. 8 , the present invention also provides a carbon dioxide electrolysis method, which includes: using an electrochemical electrolysis device to electrolyze a cathode reactant and an anode reactant to form a cathode mixture and an anode mixture respectively (step S1 ); use an absorption unit to process the cathode mixture, and divide the cathode mixture into a cathode gas product and a reflux liquid (step S2); transport the reflux liquid to a first reactant preparation unit (step S3); the first reactant preparation unit After receiving the reflux liquid, provide the cathode reactant to the electrochemical electrolysis device (step S4).
在步驟S1中,陰極反應物包括二氧化碳氣體與一陰極電解液,陽極反應物中包括一陽極電解液,陰極混合物中包含電解反應產生的一氧化碳與氫氣以及陰極電解液,陽極混合物包括氧氣以及陽極電解液。在步驟S2中,陰極氣體產物包括一氧化碳與氫氣,即為合成氣體。回流液包括陰極電解液與二氧化碳,故可通過步驟S3至S4回流至電化學電解設備,以提高本發明二氧化碳的電解方法的二氧化碳轉化率。根據上述方法,本發明可將二氧化碳轉化為可作為燃料的合成氣體,不僅可減緩溫室效應的問題,還提供了再生能源。In step S1, the cathode reactant includes carbon dioxide gas and a catholyte, the anode reactant includes an anolyte, the cathode mixture contains carbon monoxide and hydrogen generated by the electrolysis reaction and the catholyte, and the anode mixture includes oxygen and anode electrolysis liquid. In step S2, the cathode gas product includes carbon monoxide and hydrogen, ie synthesis gas. The reflux liquid includes catholyte and carbon dioxide, so it can be refluxed to the electrochemical electrolysis device through steps S3 to S4, so as to improve the carbon dioxide conversion rate of the carbon dioxide electrolysis method of the present invention. According to the above method, the present invention can convert carbon dioxide into synthetic gas that can be used as fuel, which can not only alleviate the problem of greenhouse effect, but also provide renewable energy.
[實施例的有益效果][Advantageous Effects of Embodiment]
本發明的其中一有益效果在於,本發明所提供的二氧化碳的電解系統及方法,其能通過“所述陰極反應物A1包括二氧化碳或含碳酸根或碳酸氫根的化合物,所述陰極混合物B1包括一氧化碳及氫氣,所述陽極混合物B1包括氧氣”以及“吸收單元6處理所述陰極混合物B1,並分離出包括一氧化碳及氫氣的一合成氣體”的技術方案,而具有可分解溫室氣體(二氧化碳),還產生了可作為燃料的合成氣體(一氧化碳與氫氣)以及具有商業用途的鹼性液態產物的效果。One of the beneficial effects of the present invention is that the carbon dioxide electrolysis system and method provided by the present invention can pass "the cathode reactant A1 includes carbon dioxide or a compound containing carbonate or bicarbonate, and the cathode mixture B1 includes carbon monoxide and hydrogen, said anode mixture B1 comprising oxygen" and "
更進一步來說,本發明的二氧化碳的電解系統及方法通過“所述吸收單元將所述陰極混合物區分為一陰極氣體產物與一回流液,所述陰極氣體產物包括所述合成氣體,所述回流液回流至所述電化學電解設備”的技術方案,提高陰極氣體產物中合成氣體的含量,並可以連續方式穩定產生。Furthermore, the carbon dioxide electrolysis system and method of the present invention divide the cathode mixture into a cathode gas product and a reflux liquid by "the absorption unit, the cathode gas product includes the synthesis gas, and the reflux Liquid backflow to the electrochemical electrolysis equipment "technical scheme, increase the content of synthetic gas in the cathode gas product, and can be stably produced in a continuous manner.
以上所公開的內容僅為本發明的優選可行實施例,並非因此侷限本發明的申請專利範圍,所以凡是運用本發明說明書及圖式內容所做的等效技術變化,均包含於本發明的申請專利範圍內。The content disclosed above is only a preferred feasible embodiment of the present invention, and does not therefore limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.
1:電化學電解設備
2:第一反應物配製單元
3:第二反應物配製單元
4:第一氣液分離單元
5:第二氣液分離單元
6:吸收單元
7:第一液體處理單元
8:第二液體處理單元
A1:陰極反應物
A2:陽極反應物
B1:陰極混合物
B2:陽極混合物
E1:陰極電解液
E2:陽極電解液
V1:陰極氣體混合物
V2:陽極氣體混合物
L1:陰極液體混合物
L2:陽極液體混合物
P1:陰極氣體產物
R1:回流液
R1*:第一處理液
R2*:第二處理液
10:電解單元
11:陰極腔室
111:入口
112、112A、112B:出口
12:陽極腔室
121:入口
122、122A、122B:出口
13:絕緣板
14:陰極電極
141:陰極觸媒
15:陽極電極
151:陽極觸媒
20:離子交換膜
1: Electrochemical electrolysis equipment
2: The first reactant preparation unit
3: The second reactant preparation unit
4: The first gas-liquid separation unit
5: The second gas-liquid separation unit
6: Absorption unit
7: The first liquid handling unit
8: Second liquid handling unit
A1: Cathode reactant
A2: Anode reactant
B1: cathode mixture
B2: anode mixture
E1: catholyte
E2: Anolyte
V1: cathode gas mixture
V2: anode gas mixture
L1: cathode liquid mixture
L2: anode liquid mixture
P1: cathode gas product
R1: Reflux liquid
R1*: the first treatment solution
R2*: the second treatment solution
10: Electrolysis unit
11: Cathode chamber
111:
圖1為本發明第一實施例的二氧化碳的電解系統的功能方塊圖。FIG. 1 is a functional block diagram of a carbon dioxide electrolysis system according to a first embodiment of the present invention.
圖2為本發明電化學電解設備的立體示意圖。Fig. 2 is a three-dimensional schematic diagram of the electrochemical electrolysis device of the present invention.
圖3為本發明第一實施例的電化學電解設備的側剖示意圖。FIG. 3 is a schematic side sectional view of the electrochemical electrolysis device according to the first embodiment of the present invention.
圖4為本發明第二實施例的二氧化碳的電解系統的功能方塊圖。FIG. 4 is a functional block diagram of a carbon dioxide electrolysis system according to a second embodiment of the present invention.
圖5為本發明第三實施例的二氧化碳的電解系統的功能方塊圖。FIG. 5 is a functional block diagram of a carbon dioxide electrolysis system according to a third embodiment of the present invention.
圖6為本發明第三實施例的電化學電解設備的側剖示意圖。FIG. 6 is a schematic side sectional view of an electrochemical electrolysis device according to a third embodiment of the present invention.
圖7為本發明第四實施例的二氧化碳的電解系統的功能方塊圖。FIG. 7 is a functional block diagram of a carbon dioxide electrolysis system according to a fourth embodiment of the present invention.
圖8為本發明二氧化碳的電解方法的流程圖。Fig. 8 is a flowchart of the electrolysis method of carbon dioxide of the present invention.
1:電化學電解設備 1: Electrochemical electrolysis equipment
2:第一反應物配製單元 2: The first reactant preparation unit
3:第二反應物配製單元 3: The second reactant preparation unit
4:第一氣液分離單元 4: The first gas-liquid separation unit
5:第二氣液分離單元 5: The second gas-liquid separation unit
6:吸收單元 6: Absorption unit
A1:陰極反應物 A1: Cathode reactant
A2:陽極反應物 A2: Anode reactant
B1:陰極混合物 B1: cathode mixture
B2:陽極混合物 B2: anode mixture
E1:陰極電解液 E1: catholyte
E2:陽極電解液 E2: Anolyte
V1:陰極氣體混合物 V1: cathode gas mixture
V2:陽極氣體混合物 V2: anode gas mixture
L1:陰極液體混合物 L1: cathode liquid mixture
L2:陽極液體混合物 L2: anode liquid mixture
P1:陰極氣體產物 P1: cathode gas product
R1:回流液 R1: Reflux liquid
Claims (21)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW111101926A TWI804161B (en) | 2022-01-18 | 2022-01-18 | System and method for carbon dioxide electrolysis |
CN202210166505.XA CN116497371A (en) | 2022-01-18 | 2022-02-23 | Electrolysis system and method for carbon dioxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW111101926A TWI804161B (en) | 2022-01-18 | 2022-01-18 | System and method for carbon dioxide electrolysis |
Publications (2)
Publication Number | Publication Date |
---|---|
TWI804161B TWI804161B (en) | 2023-06-01 |
TW202331004A true TW202331004A (en) | 2023-08-01 |
Family
ID=87329122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW111101926A TWI804161B (en) | 2022-01-18 | 2022-01-18 | System and method for carbon dioxide electrolysis |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN116497371A (en) |
TW (1) | TWI804161B (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN112543821A (en) * | 2018-07-10 | 2021-03-23 | 塞彭公司 | Method and system for producing carbon monoxide and hydrogen from a CO2 containing gas |
JP7204619B2 (en) * | 2019-09-17 | 2023-01-16 | 株式会社東芝 | Carbon dioxide electrolysis device and carbon dioxide electrolysis method |
JP7297710B2 (en) * | 2020-03-23 | 2023-06-26 | 株式会社東芝 | carbon dioxide reactor |
-
2022
- 2022-01-18 TW TW111101926A patent/TWI804161B/en active
- 2022-02-23 CN CN202210166505.XA patent/CN116497371A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN116497371A (en) | 2023-07-28 |
TWI804161B (en) | 2023-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Merino‐Garcia et al. | Productivity and selectivity of gas‐phase CO2 electroreduction to methane at copper nanoparticle‐based electrodes | |
CA2915763C (en) | Electrolytic enrichment method for heavy water | |
RU2718872C2 (en) | Water treatment system using device for electrolysis of aqueous solution of alkali and alkaline fuel cell | |
JPH11333458A (en) | Apparatus for producing electrolytic water | |
Lei et al. | Continuous electroreduction of carbon dioxide to formate on Tin nanoelectrode using alkaline membrane cell configuration in aqueous medium | |
JP2016527396A (en) | Alkaline solution electrolysis cell | |
JPH03111587A (en) | Electrolytic bath for reduction of carbon dioxide | |
KR101468782B1 (en) | Method for reducing carbon dioxide and non-diaphragm reductor of carbon dioxide using the same | |
CN216947223U (en) | Carbon dioxide electrolysis device | |
CN114402095B (en) | Cross-flow water electrolysis | |
TWM629398U (en) | Device for carbon dioxide electrolysis | |
TWI804161B (en) | System and method for carbon dioxide electrolysis | |
TWI819466B (en) | System and method for carbon dioxide electrolysis | |
Lhostis et al. | Promoting Selective CO2 Electroreduction to Formic Acid in Acidic Medium with Low Potassium Concentrations under High CO2 Pressure | |
TWI816374B (en) | Electrochemical equipment for reduction of carbon dioxide and system thereof | |
US20240026552A1 (en) | Electrochemical Equipment and System thereof for Reduction of Carbon Dioxide | |
CN111472018A (en) | Method for preparing hydrogen peroxide by SPE electrolysis | |
KR102576442B1 (en) | Electrochemical splitting device for producting hydrogen based on ethylene glycol and terephthalic acid, hydrogen production method and hydrogen production apparatus through electrochemical splitting using the same | |
JP2007059196A (en) | Power generating system | |
US20240076786A1 (en) | Organic hydride production device and organic hydride production method | |
JPH10280180A (en) | Apparatus for production of hydrogen peroxide water and method therefor | |
US20240150906A1 (en) | Electrolytic cell and electrolytic cells in series, which can be used as chloralkali electrolytic cell and process co2 | |
CN117468016A (en) | Electrochemical treatment device for reducing carbon dioxide and system thereof | |
AU2023233972A1 (en) | Organic hydride manufacturing device | |
Chilunda et al. | Carbon footprint comparison of liquid organic hydrogen carriers cycled thermochemically and electrochemically |