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1. WO2022008559 - METHOD FOR OPERATING AN SOFC FOR THE COMBINED PRODUCTION OF ELECTRICITY AND NITRIC OXIDE

Publication Number WO/2022/008559
Publication Date 13.01.2022
International Application No. PCT/EP2021/068752
International Filing Date 07.07.2021
IPC
H01M 4/90 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
H01M 8/0662 2016.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
06Combination of fuel cells with means for production of reactants or for treatment of residues
0662Treatment of gaseous reactants or gaseous residues, e.g. cleaning
H01M 8/22 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
22Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
C01B 21/24 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
21Nitrogen; Compounds thereof
20Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
24Nitric oxide (NO)
H01M 8/1253 2016.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
124characterised by the process of manufacturing or by the material of the electrolyte
1246the electrolyte consisting of oxides
1253the electrolyte containing zirconium oxide
H01M 8/126 2016.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
124characterised by the process of manufacturing or by the material of the electrolyte
1246the electrolyte consisting of oxides
126the electrolyte containing cerium oxide
Applicants
  • YARA INTERNATIONAL ASA [NO]/[NO]
Inventors
  • WALLER, David
  • RASTEN, Egil
  • LARRING, Yngve
Agents
  • DE CLERCQ & PARTNERS
Priority Data
20184486.707.07.2020EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR OPERATING AN SOFC FOR THE COMBINED PRODUCTION OF ELECTRICITY AND NITRIC OXIDE
(FR) PROCÉDÉ DE FONCTIONNEMENT D'UNE SOFC POUR LA PRODUCTION COMBINÉE D'ÉLECTRICITÉ ET D'OXYDE NITRIQUE
Abstract
(EN) The present disclosure discloses a method for the combined production of electricity and nitric oxide. The method comprises the steps of: providing an SOFC comprising an anodic side comprising a solid gas-permeable anode, a gas inlet and a gas outlet, a cathodic side comprising a solid gas-permeable cathode and a gas inlet and a gas outlet, and a fully dense solid electrolyte, separating the cathodic side from the anodic side; introducing an oxygen-containing gas in the inlet of the cathodic side of the SOFC; introducing an ammonia-containing gas stream in the inlet of the anodic side of the SOFC; collecting nitric oxide at the outlet of the anodic side and collecting a current flowing between the anodic side and the cathodic side. The cathode comprises a material suitable for reducing the oxygen in the oxygen-containing gas and the anode comprises a composition A1-XA'XB1-YB'YO3-δ, wherein A is selected from the group consisting of La, Y, Sm, Pr, Nd and Gd, A' is selected from the group consisting of Ca, Sr and Ba, B and B' are each independently selected from the group consisting of Co, Fe, Mn, Cr and V or mixtures thereof, X ranges from 0.05 to 0.6 and in particular from 0.1 to 0.4, Y ranges from 0 to 1 and δ ranges from 0.025 to 0.3 The present disclosure further relates to an SOFC and stack thereof for performing the method of the disclosure, to a method for producing nitric acid and to a system thereof, and to the use of the anode in the methods and SOFC and stack thereof.
(FR) La présente invention concerne un procédé de production combinée d'électricité et d'oxyde nitrique. Le procédé comprend les étapes suivantes : la fourniture d'une SOFC comprenant un côté anodique comprenant une anode solide perméable aux gaz, une entrée de gaz et une sortie de gaz, un côté cathodique comprenant une cathode solide perméable aux gaz, une entrée de gaz et une sortie de gaz, et un électrolyte solide complètement dense, séparant le côté cathodique du côté anodique ; l'introduction d'un gaz contenant de l'oxygène dans l'entrée du côté cathodique de la SOFC ; l'introduction d'un flux de gaz contenant de l'ammoniac dans l'entrée du côté anodique de la SOFC ; la collecte d'oxyde nitrique à la sortie du côté anodique et la collecte d'un courant circulant entre le côté anodique et le côté cathodique. La cathode comprend un matériau approprié pour réduire l'oxygène dans le gaz contenant de l'oxygène et l'anode comprend une composition a 1-X A'X B 1-Y B'Y O 3-delta , dans laquelle A est choisi dans le groupe constitué par La, Y, Sm, Pr, Nd et Gd, A' est choisi dans le groupe constitué par Ca, Sr et Ba, B et B' sont chacun indépendamment choisis dans le groupe constitué par Co, Fe, Mn, Cr et V ou des mélanges de ceux-ci, X est compris entre 0,05 et 0,6 et plus particulièrement entre 0,1 et 0,4, Y est compris entre 0 et 1 et δ est compris entre 0 025 et 0,3. La présente invention concerne en outre une SOFC et un empilement de celle-ci pour la mise en œuvre du procédé de l'invention, un procédé de production d'acide nitrique et un système associé, et l'utilisation de l'anode dans les procédés et la SOFC et de l'empilement de celle-ci.
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