Anode sulfur poisoning regeneration device and regeneration method for solid oxide fuel cell

A solid oxide, fuel cell technology, used in the disposal/recycling of fuel cells, fuel cells, battery recycling, etc., can solve problems such as insecurity and low efficiency

Inactive Publication Date: 2019-01-18
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low efficiency and unsafety of the existing solid oxide fuel cell sulfur poison

Method used

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  • Anode sulfur poisoning regeneration device and regeneration method for solid oxide fuel cell
  • Anode sulfur poisoning regeneration device and regeneration method for solid oxide fuel cell
  • Anode sulfur poisoning regeneration device and regeneration method for solid oxide fuel cell

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specific Embodiment approach 1

[0015] Specific Embodiment 1: The solid oxide fuel cell anode sulfur poisoning regeneration device in this embodiment includes a solid oxide fuel cell 1, an air inlet pipe 2, an air outlet pipe 3, a battery fixing pipe 4, an anode current lead 5, a cathode current lead 6, an electric ChemStation 7, Mass Spectrometer 8 and H 2 S absorption pool 10, solid oxide fuel cell 1 is fixed in one end of battery fixing tube 4, electrolyte 1-2 is sandwiched between battery anode 1-1 and battery cathode 1-3, the other end of battery fixing tube 4 Sealed by the sealing cover 4-1, the battery anode 1-1 is in the anode gas chamber formed by the sealing of the battery fixing tube 4 and the sealing cover 4-1, the battery cathode 1-3 is in the cathode gas chamber, and the cathode gas chamber is opened with air intake The inlet pipe 2 communicates with the anode gas chamber and extends into the battery fixing pipe 4, one end of the gas outlet pipe 3 communicates with the anode gas chamber, and th...

specific Embodiment approach 2

[0019] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the solid oxide fuel cell 1 is an anode-supported type, an electrolyte-supported type or a cathode-supported type.

specific Embodiment approach 3

[0020] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that the cross-sectional shape of the solid oxide fuel cell 1 is circular or square.

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Abstract

The invention relates to an anode sulfur poisoning regeneration device and regeneration method for a solid oxide fuel cell, belongs to the field of sulfur poisoning regeneration of solid oxide fuel cells, and aims at solving the problems of low efficiency and unsafety of the existing anode sulfur poisoning regeneration method of solid oxide fuel cells. The anode sulfur poisoning regeneration method of the solid oxide fuel cell of the invention is that after the anode is poisoned by sulfur, the fuel is removed and an inert gas is introduced into the anode, and at the same time, an oxygen pumping current flowing from the cathode to the anode is applied to the battery through an electrochemical workstation to carry out an electrochemical oxygen pumping process, and O2- and O2generated in theoxygen pumping process is can react with sulfur poisoning products and scavenge sulfur poisoning products effectively. The electrochemical oxygen pumping oxidation regeneration method is simple, safe,time-consuming and efficient, which is suitable for the regeneration of mixed ion conductive anode sulfur poisoning, reduces the operation and regeneration cost of SOFC, and accelerates the commercialization process of SOFC.

Description

technical field [0001] The invention belongs to the field of sulfur poisoning regeneration of solid oxide fuel cells, and in particular relates to an electrochemical pump oxygen oxidation regeneration device and a regeneration method. Background technique [0002] Solid oxide fuel cell (Solid Oxide Fuel Cell, SOFC) power generation technology is one of the ways to solve the problems of efficient energy utilization and environmental protection. SOFC can directly convert chemical energy into electrical energy and heat energy through electrochemical reactions, and has no pollution and high efficiency. , high fuel adaptability and so on. However, when cheap fuels are used, the sulfur poisoning phenomenon of the chemical reaction between the anode and sulfur-containing impurities to generate sulfur poisoning products (adsorbed sulfur element, metal sulfide, etc.) is one of the main reasons restricting the commercialization of SOFC. issues that need to be addressed. At present, ...

Claims

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Application Information

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IPC IPC(8): H01M8/008H01M8/04223
CPCH01M8/008H01M8/04223Y02E60/50Y02W30/84
Inventor 李一倩那立远吕喆
Owner HEILONGJIANG UNIV
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