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Multi-fuel universal reforming hydrogen production system and method for SOFC

A general-purpose technology for hydrogen production by reforming, applied in fuel cells, chemical instruments and methods, hydrogen, etc., can solve the problems of increased equipment cost, complexity, lack of versatility, etc., and achieve the effect of reducing fuel consumption

Pending Publication Date: 2020-07-28
宁波洁程汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing SOFC fuel internal reforming device is only for one or a certain type of fuel, and different types of fuel reforming systems are not universal, resulting in many types and complex reforming devices on the market, resulting in an increase in equipment costs , and the overall utilization rate of fuel and energy is low

Method used

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  • Multi-fuel universal reforming hydrogen production system and method for SOFC

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] When reforming gaseous fuels such as natural gas, the multi-fuel general-purpose reforming hydrogen production system for SOFC includes water storage tanks, fuel tanks, water gasifiers, reformers, shift separators, hydrogen storage tanks and multiple heat exchangers;

[0077] The water storage tank is connected to the water vaporizer through the zeroth heat exchanger, and the fuel in the fuel tank passes through the first heat exchanger; the water vaporizer and the first heat exchanger The discharged gas streams are combined in the pipeline, and then pass through the second heat exchanger, the reformer, the zeroth heat exchanger, the shift separator, the hydrogen storage tank, the fourth heat exchanger The heater is connected to the fuel cell anode;

[0078] The cathode tail gas of the fuel cell passes through the fourth heat exchanger, the reformer, and the second heat exchanger in sequence, and then communicates with the water vaporizer through a pipeline, and the ex...

Embodiment 2

[0087] Multi-fuel general-purpose reforming hydrogen production system for SOFC, including fuel tank, fuel gasifier, reformer, shift separator, hydrogen storage tank and multiple heat exchangers when reforming methanol water vapor ;

[0088] The fuel tank is connected to the fuel gasifier through the first heat exchanger, and then passes through the second heat exchanger, the reformer, the third heat exchanger, the shift separator, The hydrogen storage tank and the fourth heat exchanger are connected to the fuel cell anode;

[0089] The cathode tail gas of the fuel cell passes through the fourth heat exchanger, the third heat exchanger, the reformer, and the second heat exchanger in sequence, and then communicates with the fuel gasifier through a pipeline, and is discharged The airflow is evacuated through the first heat exchanger.

[0090] The hydrogen production tail gas discharged from the shift separator is mixed with the anode tail gas of the fuel cell to form heating g...

Embodiment 3

[0099] When reforming fuels that can only be reformed under high temperature conditions such as diesel and gasoline, the multi-fuel general-purpose reforming hydrogen production system for SOFC includes water storage tanks, fuel tanks, water vaporizers, and fuel gasification reactors, reformers, shift separators, hydrogen storage tanks and multiple heat exchangers;

[0100] The water storage tank is connected to the water gasifier through the zeroth heat exchanger, and the fuel tank is connected to the fuel gasifier through the first heat exchanger; the water gasifier is connected to the fuel gasifier The gas streams discharged from the reformer are combined in the pipeline, and then pass through the second heat exchanger, the reformer, the zeroth heat exchanger, the shift separator, the hydrogen storage tank, the first Four heat exchangers connected to the fuel cell anode;

[0101] The cathode tail gas of the fuel cell passes through the fourth heat exchanger, the reformer, ...

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Abstract

The invention discloses a multi-fuel universal reforming hydrogen production system for SOFC. The multi-fuel universal reforming hydrogen production system is characterized in that a water storage tank communicates with a water gasifier through a zeroth heat exchanger, and a fuel tank communicates with a fuel gasifier through a first heat exchanger; gas flows exhausted by the water gasifier and the fuel gasifier are combined in a pipeline and then are connected to the positive electrode of a fuel cell through a second heat exchanger, a reformer, a third heat exchanger, the zeroth heat exchanger, a shift separator, a hydrogen storage tank and a fourth heat exchanger in sequence; tail gas from the negative electrode of the fuel cell passes through the fourth heat exchanger, the third heat exchanger, the reformer and the second heat exchanger in sequence and then communicates with the water gasifier and the fuel gasifier through different pipelines, and exhausted gas flows are combined inthe pipeline and are then exhausted through the first heat exchanger. By means of the system, reforming hydrogen production can be conducted on various reforming fuels, an application range is wide,and an energy utilization rate can be increased.

Description

technical field [0001] The invention relates to the technical field of fuel reforming, and more specifically relates to a multi-fuel universal reforming hydrogen production system and method for solid oxide fuel cell SOFC. Background technique [0002] Solid Oxide Fuel Cell (SoliC OxiCe Fuel Cell, referred to as SOFC) is the fourth generation of fuel cells. Compared with other fuel cells, SOFC has the highest operating temperature, and the fuel can be rapidly oxidized to reach thermodynamic equilibrium. Therefore, it is unnecessary to use noble metal catalysts. Low-temperature fuel cell Phosphate fuel cell (PAFC) and proton exchange membrane fuel cell (PEMFC), SOFC has a wide range of fuel applications, hydrogen, hydrogen-rich synthesis gas, natural gas, water gas, etc. can be used as fuel, of which hydrogen and rich Hydrogen synthesis gas is neither primary energy nor secondary energy. They are obtained from other energy sources such as natural gas, coal, biomass, and alcoh...

Claims

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Application Information

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IPC IPC(8): C01B3/32C01B3/38C01B3/16C01B3/50H01M8/04089H01M8/0606
CPCC01B3/38C01B3/323C01B3/16C01B3/50H01M8/0606H01M8/04097C01B2203/0233Y02E60/50
Inventor 张红飞邹志文孙强张智雄张晓燕
Owner 宁波洁程汽车科技有限公司
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