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Polygeneration system of thermoelectric hydrogen based on urban natural gas

A technology of natural gas and polygeneration, applied in the field of polygeneration systems, to achieve clean and efficient utilization, improve energy efficiency, and reduce pollutant emissions

Pending Publication Date: 2019-01-01
BEIJING GAS & HEATING ENG DESIGN INST
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Problems solved by technology

[0005] At present, there is no technology that combines the above-mentioned hydrogen production technology by steam reforming of methane with solid oxide fuel cell technology to improve the efficiency of thermal energy utilization

Method used

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  • Polygeneration system of thermoelectric hydrogen based on urban natural gas

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Embodiment Construction

[0013] Such as figure 1 As shown, the thermal power hydrogen cogeneration system based on urban natural gas in the present invention includes a natural gas reforming hydrogen production sub-system, a micro gas turbine power generation sub-system and a solid oxide fuel cell 10 power generation sub-system, and the natural gas reforming hydrogen production sub-system includes A desulfurization device 1, an ejector 2, a reformer 3, a water vapor shift reaction device 4 and a palladium membrane purification device 5 connected in sequence, the palladium membrane purification device 5 is provided with a first outlet for outputting high-purity hydrogen and an outlet for outputting other gases The second outlet, the micro gas turbine power generation subsystem includes a compressor 6, a combustion chamber 7, a turbine 8 and a generator 15 connected in sequence, and the solid oxide fuel cell 10 power generation subsystem includes a solid oxide fuel cell 10, The current outlet of the sol...

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Abstract

The invention discloses a polygeneration system of thermoelectric hydrogen based on urban natural gas, comprising a natural gas reforming hydrogen production subsystem, a micro gas turbine power generation subsystem and a solid oxide fuel cell power generation subsystem, the natural gas reforming hydrogen production subsystem comprises a desulfurization device, an ejector, a reformer, a water gasshift reaction device and a palladium membrane purification device connected in sequence, the micro gas turbine power generation subsystem comprises a compressor, a combustion chamber, a turbine and agenerator connected in sequence, and the solid oxide fuel cell power generation subsystem comprises a solid oxide fuel cell. The purpose of the invention is to provide a polygeneration system of thermoelectric hydrogen based on urban natural gas, which organically combines the natural gas reforming hydrogen production technology, the micro gas turbine technology and the solid oxide fuel cell technology, and improves the overall utilization efficiency of heat energy.

Description

technical field [0001] The invention belongs to the field of solid oxide fuel cell technology and hydrogen energy, and is a polygeneration system utilizing urban natural gas for heat supply, power generation and hydrogen production. Background technique [0002] A solid oxide fuel cell (Solid Oxide Fuel Cell, SOFC) is a high-temperature fuel cell using ceramic oxide as an electrolyte, and its operating temperature is 600°C to 800°C. Although the high temperature environment brings higher requirements on materials and other aspects, it also produces higher efficiency. The electrical efficiency of SOFC itself can reach 50% to 60%. If it is combined with cogeneration, the efficiency can reach as high as 90%. At the same time, high-grade thermal energy can be used multiple times, which further promotes the cascade utilization of energy and improves the energy efficiency of the system. The advantages of SOFC also include: flexible fuel selection, non-precious metal catalysts, re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0612H01M8/1246H01M8/04029
CPCH01M8/04029H01M8/0618H01M8/1246H01M2008/1293Y02E60/50
Inventor 吴荣孙明烨郑娜
Owner BEIJING GAS & HEATING ENG DESIGN INST
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