SOFC adopting ammonia water as fuel and cascade power generation system and operation method thereof

A power generation system, fuel cell technology, applied in fuel cells, fuel cell applications, fuel cell additives, etc., can solve the problems of carbon dioxide emission, inconvenient transportation and storage, flammability of hydrogen and ammonia, and achieve low toxicity and production. The effect of mature technology and high power density

Active Publication Date: 2021-10-22
XI AN JIAOTONG UNIV
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Problems solved by technology

[0003] In the existing SOFC-GT cascade power generation system, traditional fuels (such as natural gas, hydrocarbons, etc.) are usually used in SOFC, which will cause serious carbon dioxide emission problems; and hydrogen and ammonia do not emit carbon dioxide due to their characteristics , has also gradually gained the attention of researchers, but hydrogen and ammonia are flammable and not convenient for transportation and storage

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  • SOFC adopting ammonia water as fuel and cascade power generation system and operation method thereof
  • SOFC adopting ammonia water as fuel and cascade power generation system and operation method thereof
  • SOFC adopting ammonia water as fuel and cascade power generation system and operation method thereof

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[0044] In order to make the purpose, technical effects and technical solutions of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments It is a part of the embodiment of the present invention. Based on the disclosed embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall all fall within the protection scope of the present invention.

[0045] An SOFC using ammonia water as fuel of the present invention comprises: an anode layer, an electrolyte layer, a separation layer and a cathode layer; the anode layer is fed with compressed ammonia water. Exemplarily, the mass concentration of ammonia in the ammonia water ranges from 0.65 to 0.85, and the higher the conce...

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Abstract

The invention discloses an SOFC adopting ammonia water as fuel and a cascade power generation system and an operation method thereof. The SOFC adopting ammonia water as fuel comprises an anode layer, an electrolyte layer, an isolation layer and a cathode layer; compressed ammonia water is introduced into the anode; and the mass concentration range of the ammonia water is preferably 0.65-0.85, and the utilization rate of hydrogen generated by decomposition of ammonia gas in the SOFC is 75%. Ammonia is considered to be a novel and promising fuel in recent years besides traditional fuels such as hydrogen and natural gas in the aspect of SOFC fuels, and the ammonia fuel has the characteristics of no emission of carbon dioxide, high power density and easiness in liquefaction and transportation. In the invention, the ammonia water is used as the fuel of the SOFC, and compared with the currently used ammonia gas, the ammonia water used in the invention has the advantages of mature production process, relatively low toxicity, nonflammability, easiness in liquefaction and transportation and higher safety.

Description

technical field [0001] The invention belongs to the technical field of energy power generation, and in particular relates to an SOFC using ammonia water as a fuel, a cascaded power generation system and an operation method thereof. Background technique [0002] Solid oxide fuel cell (Solid Oxide Fuel Cell, SOFC) has the characteristics of high electrical efficiency and good flexibility, and can effectively reduce the emission of carbon dioxide. SOFCs have been widely used in aircraft, electric vehicles, power generation, and distributed energy. SOFC can generate electricity at a high temperature of 600-1000°C. In order to utilize the heat of SOFC, a gas turbine (Gas Turbine, GT) is usually combined with SOFC to form a SOFC-GT cascade power generation system. [0003] In the existing SOFC-GT cascade power generation system, traditional fuels (such as natural gas, hydrocarbons, etc.) are usually used in SOFC, which will cause serious carbon dioxide emission problems; and hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1233H01M8/04007H01M8/04186H01M8/04701H01M8/0662F02C3/22F02C6/00
CPCH01M8/1233H01M8/0662H01M8/04007H01M8/04186H01M8/04708F02C6/00F02C3/22H01M2008/1293H01M2250/402Y02E60/50Y02P70/50
Inventor 戴义平杜洋张一岑
Owner XI AN JIAOTONG UNIV
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