Electrochemical production of synthesis gas from carbon dioxide
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C25B-001/00
C25B-001/02
B01D-053/32
출원번호
US-0253964
(2014-04-16)
등록번호
US-10119196
(2018-11-06)
발명자
/ 주소
Sivasankar, Narayanappa
Cole, Emily Barton
Teamey, Kyle
출원인 / 주소
Avantium Knowledge Centre B.V.
대리인 / 주소
Suiter Swantz pc llo
인용정보
피인용 횟수 :
0인용 특허 :
118
초록▼
A method for electrochemical production of synthesis gas from carbon dioxide is disclosed. The method generally includes steps (A) to (C). Step (A) may bubble the carbon dioxide into a solution of an electrolyte and a catalyst in a divided electrochemical cell. The divided electrochemical cell may i
A method for electrochemical production of synthesis gas from carbon dioxide is disclosed. The method generally includes steps (A) to (C). Step (A) may bubble the carbon dioxide into a solution of an electrolyte and a catalyst in a divided electrochemical cell. The divided electrochemical cell may include an anode in a first cell compartment and a cathode in a second cell compartment. The cathode generally reduces the carbon dioxide into a plurality of components. Step (B) may establish a molar ratio of the components in the synthesis gas by adjusting at least one of (i) a cathode material and (ii) a surface morphology of the cathode. Step (C) may separate the synthesis gas from the solution.
대표청구항▼
1. A method for electrochemical production of synthesis gas from water and carbon dioxide, comprising the steps of: (A) bubbling carbon dioxide into a solution of an electrolyte and a catalyst in a divided electrochemical cell, wherein (i) said divided electrochemical cell comprises an anode in a fi
1. A method for electrochemical production of synthesis gas from water and carbon dioxide, comprising the steps of: (A) bubbling carbon dioxide into a solution of an electrolyte and a catalyst in a divided electrochemical cell, wherein (i) said divided electrochemical cell comprises an anode in a first cell compartment and a cathode in a second cell compartment, wherein said cathode comprises an electrode material present as particles or nanoparticles loaded onto a substrate,where the electrode material is selected from the group consisting of Al, Au, Ag, Cd, C, Co, Cr, Cu, Cu alloys, Ga, Hg, In, Ir, Mo, Nb, Ni, Ni alloys, Ni—Fe alloys, Os, Pd, Pt, Rh, Ru, Sn, Sn alloys, Ti, V, W, Zn, stainless steel, austenitic steel, terrific steel, duplex steel, martensitic steel, Nichrome, elgiloy, degenerately doped p-Si, degenerately doped p-Si:As and degenerately doped p-Si:B, and wherein the substrate comprises graphite, carbon fiber or another conductor, (ii) said carbon dioxide is reduced at the cathode into a plurality of components, said components comprising carbon monoxide, and the water is oxidized into protons and oxygen at the anode and said protons from the oxidized water are reduced to hydrogen gas at the cathode; and(B) separating the synthesis gas from the solution. 2. The method according to claim 1, wherein said cathode comprises a mix of electrode materials present as particles or nanoparticles loaded onto a substrate, where the electrode materials are selected from the group consisting of Al, Au, Ag, Cd, C, Co, Cr, Cu, Cu alloys, Ga, Hg, In, Ir, Mo, Nb, Ni, Ni alloys, Ni—Fe alloys, Os, Pd, Pt, Rh, Ru, Sn, Sn alloys, Ti, V, W, Zn, stainless steel, austenitic steel, ferritic steel, duplex steel, martensitic steel, Nichrome, elgiloy, degenerately doped p-Si, degenerately doped p-Si:As and degenerately doped p-Si:B; andwherein the substrate comprises graphite, carbon fiber or another conductor. 3. The method according to claim 1, wherein said cathode comprises an alloy and/or aggregate of electrode materials, present as particles or nanoparticles loaded onto the substrate, where the electrode materials are selected from the group consisting of Al, Au, Ag, Cd, C, Co, Cr, Cu, Cu alloys, Ga, Hg, In, Ir, Mo, Nb, Ni, Ni alloys, Ni—Fe alloys, Os, Pd, Pt, Rh, Ru, Sn, Sn alloys, Ti, V, W, Zn, stainless steel, austenitic steel, ferritic steel, duplex steel, martensitic steel, Nichrome, elgiloy, degenerately doped p-Si, degenerately doped p-Si:As and degenerately doped p-Si:B; andwherein the substrate comprises graphite, carbon fiber or other conductor. 4. The method according to claim 1, wherein said cathode comprises a combination of electrode materials present as particles or nanoparticles loaded onto a substrate, wherein one electrode material is selected from the group consisting of C, Cr, Nb, Sn and stainless steel andwherein another electrode material is selected from the group of Ni, V Ni, V, Ir, Os, Pd, Pt, Rh and Ru; andwherein the substrate comprises graphite, carbon fiber or another conductor. 5. The method according to claim 1, wherein hydrogen gas and carbon monoxide are produced at the cathode in a ratio of one or more moles of hydrogen gas per mole of carbon monoxide. 6. The method according to claim 1, wherein the catalyst is a substituted or unsubstituted aromatic heterocyclic amine. 7. The method according to claim 1, wherein the catalyst is selected from pyridines, imidazoles, bipyridines, thiazoles, oxazoles, quinolines, adenine, benzimidazole and 1,10-phenanthroline. 8. The method according to claim 1, wherein the half cell potentials at the cathode range from 0.7 volts to 1.5 volts relative to a saturated calomel electrode. 9. The method according to claim 1, wherein the electrolyte is at least one of Na2SO4, KCl, NaNO3, NaCl, NaF, NaClO4, KClO4, K2SiO3, CaCl2, a H cation, a Li cation, a Na cation, a K cation, a Rb cation, a Cs cation, a Ca cation, an ammonium cation, an alkylammonium cation, a F anion, a Cl anion, a Br anion, an I anion, an At anion, an alkyl amine, berates, carbonates, nitrites, nitrates, phosphates, polyphosphates, perchlorates, silicates, sulfates, and a tetraalkyl ammonium salt.
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