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1. WO2020113242 - ANODE EXHAUST PROCESSING FOR MOLTEN CARBONATE FUEL CELLS

Publication Number WO/2020/113242
Publication Date 04.06.2020
International Application No. PCT/US2020/012895
International Filing Date 09.01.2020
IPC
H01M 8/0668 2016.01
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
0668Removal of carbon monoxide or carbon dioxide
CPC
F02C 6/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
6Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus
H01M 2008/147
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
14Fuel cells with fused electrolytes
147Fuel cells with molten carbonates
H01M 2250/402
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2250Fuel cells for particular applications; Specific features of fuel cell system
40Combination of fuel cells with other energy production systems
402Combination of fuel cell with other electric generators
H01M 2250/405
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2250Fuel cells for particular applications; Specific features of fuel cell system
40Combination of fuel cells with other energy production systems
405Cogeneration of heat or hot water
H01M 8/04805
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04694characterised by variables to be controlled
04791Concentration; Density
04805of fuel cell exhausts
H01M 8/0668
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
0668Removal of carbon monoxide or carbon dioxide
Applicants
  • EXXONMOBIL RESEARCH AND ENGINEERING COMPANY [US]/[US]
Inventors
  • JOHNSON, Gregory R.
Agents
  • NEGRON, Liza
  • MIGLIORINI, Robert A.
  • NORWOOD, Amanda, K.
  • BARRETT, Glenn, T.
  • YARNELL, Scott, F.
Priority Data
62/773,49230.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ANODE EXHAUST PROCESSING FOR MOLTEN CARBONATE FUEL CELLS
(FR) TRAITEMENT DE GAZ D'ÉCHAPPEMENT D'ANODE POUR PILES À COMBUSTIBLE À CARBONATE FONDU
Abstract
(EN)
Systems and methods are provided for integrating a chemical looping combustion system with molten carbonate fuel cells to provide improved operation of the molten carbonate fuel cells when using the exhaust from a gas turbine or other electrical power generation device as the CO2 source for the MCFC cathodes. This integration can be accomplished by using metal oxide in the chemical looping combustion system to oxidize the anode output flow from the MCFCs. This can reduce or minimize the number of separations that need to be performed in order to process the concentrated CO2 present within the anode exhaust. By reducing, minimizing, or eliminating the CO and H2 in the anode exhaust, the need to perform more costly separations (such as cryogenic separation or amine washing) to obtain a high purity CO2 product stream can be reduced or minimized. Optionally, the cathode exhaust from the molten carbonate fuel cells can be used as an oxygen-containing stream for regeneration of the metal oxide.
(FR)
L'invention concerne des systèmes et des procédés pour intégrer un système de combustion en boucle chimique à des piles à combustible à carbonate fondu (MCFC) pour améliorer le fonctionnement de ces dernières lors de l'utilisation des gaz d'échappement provenant d'une turbine à gaz ou d'un autre dispositif de génération d'énergie électrique en tant que source de CO2 pour les cathodes de MCFC. Cette intégration peut être accomplie en utilisant de l'oxyde métallique dans le système de combustion en boucle chimique pour oxyder le flux de sortie d'anode provenant de MCFC. Cela permet de réduire ou de minimiser le nombre de séparations qui doivent être effectuées afin de traiter le CO2 concentré présent dans les gaz d'échappement d'anode. En réduisant, minimisant ou éliminant le CO et le H2 dans les gaz d'échappement d'anode, il est possible de réduire ou de minimiser la nécessité d'effectuer des séparations plus coûteuses (telles qu'une séparation cryogénique ou un lavage aux amines) pour obtenir un flux de produit de CO2 de pureté élevée. Facultativement, les gaz d'échappement de cathode provenant de piles à combustible à carbonate fondu peuvent être utilisés en tant que flux contenant de l'oxygène pour la régénération de l'oxyde métallique.
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