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Method and system for operating molten carbonate fuel cells

A technology of molten carbonate and fuel cells, which is used in molten electrolyte fuel cells, fuel cells, fuel cell additives, etc.

Inactive Publication Date: 2008-01-09
ANSALDO FUEL CELLS SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, when providing solutions to the model in real time, the available commercial codes are limited by the degree of specificity of the model (must take into account multiple process interventions) and the calculation of the system itself

Method used

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  • Method and system for operating molten carbonate fuel cells
  • Method and system for operating molten carbonate fuel cells
  • Method and system for operating molten carbonate fuel cells

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Embodiment Construction

[0045] From an electrochemical point of view, molten carbonate fuel cells are innovative reactors because the chemical energy of the filled fuel is directly converted into electrical energy in the reactor. At the same time, they also have the characteristics of high yield and low environmental pollution. In order to develop a method for optimizing the performance of molten carbonate fuel cells, three steps must be passed:

[0046] 1. Evaluation of the experimental values ​​of the tested molten carbonate fuel cells;

[0047] 2. Evaluation of local chemical, physical and electrical conditions;

[0048] Optimization of operating conditions based on obtained results and special operating constants.

[0049] The method employs steps outlined in the flowchart of Figure 16 and the following scheme:

[0050] Phase I: Evaluation of Experimental Values

[0051] The determination of the reference experimental values ​​concerning the battery kinetics and electrochemical properties was...

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Abstract

A molten carbonate fuel cell stack and a method for operating the molten carbonate fuel cell stack, which fuel cell comprises a porous anode, a carbonate-comprising matrix and a porous cathode, wherein the anode section is supplied with a hydrogenous gas and the cathode section is supplied with a gaseous mixture comprising oxygen and carbon dioxide, the fuel cell is operated at a temperature in a range of about 823-973 K, with the carbonate of the carbonate-comprising matrix being in a fluid state, oxygen and carbon dioxide are reacted at the cathode, yielding carbonate ions which move from the cathode to the anode generating an electric voltage between the anode and the cathode and an electrical current circulating in the external circuit and water that has been formed is led away from the fuel cell together with carbon dioxide, comprising sampling the temperature of inlet of the reactants, sampling the temperature of outlet of reactants , sampling the current density and voltage sampling the flow rate and gas composition of the inlet and outlet gases analyzing the sampled temperature, current density, voltage flow rates and gas composition, and regulating the inlet flow rate such as the pressure drop between inlet and outlet is below 20 mbar and the temperature in each element of a cell of the stack is below 973K.

Description

Field of invention: [0001] The present invention relates to a fuel cell using molten carbonate as an electrolyte, and more particularly to a molten carbonate fuel which, through proper design and optimum operation, avoids critical operating conditions that could impair electrochemical performance or cause material degradation batteries, thus improving their reliability. Background technique: [0002] Fuel cells are energy-generating devices that convert chemical energy into electrical energy using electrochemical reactions, and stand out as promising new electrical energy resources because of their environmentally friendly characteristics and high-efficiency energy generation. A fuel cell has a feature of continuously producing energy by supplying fuel hydrogen oxidation reaction and oxygen reduction reaction in air. Different types of fuel cells are developed today. In particular molten carbonate fuel cell (MCFCs) technology has advanced with the progress of commercializa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04H01M8/14
CPCH01M2008/147H01M8/04305H01M8/244H01M8/04298H01M8/145Y02E60/526Y02E60/50H01M8/04225
Inventor 菲利普·帕罗迪巴巴拉·伯斯奥伊丽莎白·阿拉托
Owner ANSALDO FUEL CELLS SPA
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