Solid oxide fuel cell combined system based on solar methanol reforming hydrogen production

A solid oxide and fuel cell technology, applied in the direction of fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems of high energy consumption, high cost of hydrogen production, difficult to promote, etc., to achieve flexible control and compact structure , The effect of improving power generation efficiency

Pending Publication Date: 2018-12-14
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although hydrogen production by electrolysis of water is more environmentally friendly, it requires higher energy consumption, and its hydrogen production cost is 3 to 6 times higher than that of fossil fuel reforming hydrogen production, so it is difficult to promote

Method used

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  • Solid oxide fuel cell combined system based on solar methanol reforming hydrogen production
  • Solid oxide fuel cell combined system based on solar methanol reforming hydrogen production
  • Solid oxide fuel cell combined system based on solar methanol reforming hydrogen production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] figure 1 It is a schematic structural diagram of a solid oxide fuel cell combined system based on solar methanol reforming hydrogen production provided in this embodiment. Such as figure 1 As shown, this embodiment provides a solid oxide fuel cell combined system based on solar methanol reforming hydrogen production, including methanol reforming hydrogen production subsystem, solid oxide fuel cell subsystem and humid air turbine circulation subsystem:

[0048] The methanol reforming hydrogen production subsystem includes at least a first heat exchanger 110 and a methanol reforming reactor 120;

[0049] The solid oxide fuel cell subsystem includes at least a cell stack (not shown), a fuel compressor 210, a second heat exchanger 220, an afterburner 230, and a pre-reformer 250; the cell stack includes a plurality of solid oxide fuel cells 240. The solid oxide fuel cell 240 has a cathode inlet, a cathode outlet, an anode inlet, and an anode outlet;

[0050] The humid air...

Embodiment 2

[0100] The joint system in the first embodiment is used for energy utilization, and the structural diagram of the joint system is as follows figure 1 As shown, the main simulation conditions of the joint system under specific working conditions are shown in Table 1, and the corresponding energy balance table is shown in Table 2.

[0101] Table 1 The main process conditions of the combined system

[0102]

[0103]

[0104] Table 2 System Energy Balance Table

[0105]

[0106] In Table 2, the power generation of SOFC refers to the power generation of solid oxide fuel cell; the net power generation of GT is the sum of the net power generation of the first gas turbine and the second gas turbine; correspondingly, the power generation efficiency of SOFC is The power generation efficiency of the solid oxide fuel cell; GT power generation efficiency refers to the overall power generation efficiency of the first gas turbine and the second gas turbine.

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Abstract

The invention provides a solid oxide fuel cell combined system based on solar energy methanol reforming hydrogen production. The methanol reforming hydrogen production subsystem comprises at least a first heat exchanger and a methanol reforming reactor. A solid oxide fuel cell subsystem includes at least a plurality of solid oxide fuel cells, a fuel compressor, a second heat exchanger, an afterburning chamber, and a prereformer; A wet air turbine circulation subsystem includes at least a first gas turbine and a wet air generating device capable of producing wet air from air and water; The wetair outlet of the wet air generating device is communicated with the cathode inlet via the second heat exchanger, the outlet of the methanol reforming reactor is communicated with the anode inlet viathe first heat exchanger, the fuel compressor and the preformer in turn, the outlet of the afterburning chamber is communicated with the inlet of the first gas turbine, and the outlet of the first gasturbine is communicated with the inlet of the second heat exchanger. The combined system is an efficient power generation system which can output more power and has better energy saving and economy.

Description

technical field [0001] The invention relates to a solid oxide fuel cell combined system based on solar methanol reforming to produce hydrogen, in particular to a SOFC-HAT high-efficiency fuel cell combined cycle process system for recovering carbon dioxide from solar methanol reforming. Background technique [0002] In the face of the continuous depletion of fossil energy and environmental pollution, renewable energy such as wind energy, biomass energy and solar energy have great potential. my country's solar energy resources are abundant and have the greatest development potential, which is an effective way to deal with energy shortages and environmental pollution. However, due to the shortcomings of low energy flux density, uneven distribution, and intermittent nature, the application of solar energy resources is restricted. The most realistic and effective method at present is to improve the traditional energy utilization method and combine it with solar energy to improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04H01M8/04007H01M8/04089
CPCH01M8/04H01M8/04007H01M8/04097Y02E60/50
Inventor 赵洪滨侯秦龙杨晓宇
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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