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1. (WO2017153081) METHOD AND DEVICE FOR THE ELECTROCHEMICAL UTILIZATION OF CARBON DIOXIDE
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Pub. No.: WO/2017/153081 International Application No.: PCT/EP2017/051469
Publication Date: 14.09.2017 International Filing Date: 25.01.2017
IPC:
C25B 15/08 (2006.01) ,C25B 1/00 (2006.01) ,C25B 1/04 (2006.01) ,C25B 3/04 (2006.01) ,C25B 9/08 (2006.01)
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
15
Operating or servicing of cells
08
Supplying or removing reactants or electrolytes; Regeneration of electrolytes
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1
Electrolytic production of inorganic compounds or non-metals
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1
Electrolytic production of inorganic compounds or non-metals
02
of hydrogen or oxygen
04
by electrolysis of water
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
3
Electrolytic production of organic compounds
04
by reduction
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
9
Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies
06
Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
08
with diaphragms
Applicants:
SIEMENS AKTIENGESELLSCHAFT [DE/DE]; Werner-von-Siemens-Straße 1 80333 München, DE
Inventors:
STARK, Katharina; DE
BALDAUF, Manfred; DE
HANEBUTH, Marc; DE
Priority Data:
10 2016 203 946.610.03.2016DE
Title (EN) METHOD AND DEVICE FOR THE ELECTROCHEMICAL UTILIZATION OF CARBON DIOXIDE
(FR) PROCÉDÉ ET DISPOSITIF POUR L'UTILISATION ÉLECTROCHIMIQUE DE DIOXYDE DE CARBONE
(DE) VERFAHREN UND VORRICHTUNG ZUR ELEKTROCHEMISCHEN NUTZUNG VON KOHLENSTOFFDIOXID
Abstract:
(EN) The present invention relates to a method and a device for the electrochemical utilization of carbon dioxide. Carbon dioxide is introduced into an electrolysis cell and is reduced at a cathode. A catholyte that has become basic in the electrolysis cell is used as an absorption agent for non-converted carbon dioxide which is contained in the product gas in addition to the carbon monoxide. The device therefore comprises two separate lines for the basic catholyte and the product gas from the electrolysis cell into a gas scrubber device. In the gas scrubber device, the catholyte and the product gas are then merged, such that the non-converted carbon dioxide is separated off.
(FR) La présente invention concerne un procédé et un dispositif d'utilisation électrochimique de dioxyde de carbone. Le dioxyde de carbone est introduit dans une cellule d'électrolyse et réduit sur une cathode. Un catholyte devenu basique dans la cuve d'électrolyse est utilisé en tant qu'agent absorbant pour le dioxyde de carbone non transformé qui est contenu dans le gaz produit, en plus du monoxyde de carbone. Le dispositif comporte ainsi deux conduits séparés pour le catholyte basique et le gaz produit sortant de la cellule d'électrolyse dans un dispositif d'épuration de gaz. Puis, le catholyte et le gaz produit sont rassemblés dans le dispositif d'épuration de gaz, de manière à séparer le dioxyde de carbone non transformé.
(DE) Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zur elektrochemischen Verwertung von Kohlenstoffdioxid. Kohlenstoffdioxid wird in eine Elektrolysezelle eingeleitet und an einer Kathode reduziert. Ein in der Elektrolysezelle basisch gewordener Katholyt wird als Absorptionsmittel für nicht umgewandeltes Kohlenstoffdioxid, welches neben dem Kohlenstoffmonoxid im Produktgas enthalten ist, verwendet. Die Vorrichtung umfasst daher zwei getrennte Leitungen für den basischen Katholyt und das Produktgas aus der Elektrolysezelle in eine Gaswäschevorrichtung. In der Gaswäschevorrichtung werden der Katholyt und das Produktgas dann zusammengebracht, so dass das nicht umgewandelte Kohlenstoffdioxid abgetrennt wird.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)