Hydrogen production energy storage method coupled with CO2 resource utilization

An energy storage method and resource utilization technology, which is applied in the field of hydrogen production energy storage where SPE is coupled with CO2 resource utilization, can solve problems such as low conversion efficiency, volatility, and intermittent hydrogen production by electrolysis, so as to reduce the cost of hydrogen production and realize Cogeneration of heat and power, the effect of improving system efficiency

Active Publication Date: 2016-11-09
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the defect that the existing technology cannot realize the coupling of reversible SOFC and electrolytic hydrogen production due to low conversion efficiency, and then provide a CO 2 The hydrogen production and energy storage method of resource utilization can solve the intermittent and fluctuating problems of electrolytic hydrogen production due to the use of wind and solar power generation, and at the same time realize the CO 2 utilization of resources

Method used

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  • Hydrogen production energy storage method coupled with CO2 resource utilization
  • Hydrogen production energy storage method coupled with CO2 resource utilization

Examples

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Effect test

Embodiment 1

[0032] Such as figure 1 As shown, the coupling CO described in this example 2 The hydrogen production energy storage method of resource utilization can be used to control the power generation device that utilizes wind energy and solar power, the SPE hydrogen production device and the reversible SOFC device. The electricity consumption required by water Q2=58 kWh, the reversible SOFC device co-electrolyzes water and CO 2 The required power consumption Q3 = 95 kWh;

[0033] Under this condition, part of the electric energy generated by the power generation device supplies power to the SPE hydrogen production device, so that the SPE hydrogen production device electrolyzes water to produce hydrogen and oxygen, and the other part supplies power to the reversible SOFC device. At this time, the The reversible SOFC device enters the SOEC working mode, and co-electrolyzes water and CO under the action of nano-copper catalysts 2 Made with H 2 , CO, CH 4 and C 2 h 4 The mixed gas,...

Embodiment 2

[0036] Such as figure 1 As shown, the coupling CO described in this example 2 The hydrogen production and energy storage method of resource utilization is used to control the power generation device that utilizes wind energy and solar power, the SPE hydrogen production device and the reversible SOFC device. The electricity consumption required by water Q2=58 kWh, the reversible SOFC device co-electrolyzes water and CO 2 The required power consumption Q3 = 95 kWh;

[0037] Under this condition, the power generation device only supplies power to the SPE hydrogen production device, while the reversible SOFC device is cut off from power supply.

[0038] In this embodiment, the hydrogen electrode material of the reversible SOFC device is LSCM, the oxygen electrode material is BSCF, and the electrolyte is SDC.

Embodiment 3

[0040] Such as figure 1 As shown, the coupling CO described in this example 2 The hydrogen production and energy storage method of resource utilization is used to control the power generation device using wind energy and solar power, the SPE hydrogen production device and the reversible SOFC device, the power generation of the power generation device Q1=10 kWh, and the electrolysis The electricity consumption required by water Q2=58 kWh, the reversible SOFC device co-electrolyzes water and CO 2 The required power consumption Q3 = 95 kWh;

[0041] Under these conditions, the reversible SOFC device enters the SOFC working mode, uses the mixed gas produced by its own co-electrolysis as fuel and air to generate electricity, and the generated electric energy can reach 86 kWh, part of which is the SPE hydrogen production device power supply, and the rest of the power is connected to the grid.

[0042] In this embodiment, the hydrogen electrode material of the reversible SOFC devi...

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Abstract

The invention provides a hydrogen production energy storage method coupled with CO2 resource utilization. The method is used for controlling a power generation device for generating electricity by using wind energy and solar energy, a hydrogen production device and a reversible SOFC device, and obtains a power generation quantity Q1 of the power generation device, a power use quantity Q2 needed by water electrolysis of the hydrogen production device and a power use quantity Q3 needed by electrolysis of water and CO2 of the reversible SOFC device; when Q1 is higher than Q2+Q3, the power generation device respectively supplies electricity to the hydrogen production device and the reversible SOFC device; when Q1 is lower than Q2+Q3 and higher than Q2, the power generation device only supplies electricity to the hydrogen production device; and when Q2 is higher than Q1, the reversible SOFC device enters a SOFC working mode, and generated electric energy supplies electricity to the hydrogen production device. The method stores renewable energy, realizes the resource utilization of CO2, effectively solves the intermittence and fluctuation problems of electrolytic hydrogen production caused by power generation through wind energy and solar energy, can prevent consumption of conventional electric energy, largely reduces the electrolytic hydrogen production cost, improves the electrolysis efficiency, prolongs the service life of the hydrogen production device, and improves the stability and the energy utilization rate of the hydrogen production device.

Description

technical field [0001] The invention belongs to the technical field of energy utilization, and in particular relates to a wind energy-solar-SOEC energy complementary SPE coupled CO 2 A hydrogen production and energy storage method for resource utilization. Background technique [0002] In the course of human development, fossil energy such as coal, oil, and natural gas has made outstanding contributions to the progress of human civilization. In the next few decades, fossil energy will still play a pivotal role in the development of human society. However, with the rapid development of economy and population, factors such as over-exploitation and low utilization of fossil energy have caused a worldwide energy crisis and seriously damaged the ecological balance, especially in underdeveloped countries with relatively backward technology or In developing countries, environmental pollution is increasingly harmful to people's lives. Therefore, developing new energy sources and de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B1/00C25B9/04C25B15/02C25B9/00C25B11/04
CPCC25B1/00C25B1/04C25B9/00C25B11/04C25B15/02C25B1/55C25B9/65Y02E60/36Y02P20/133
Inventor 赵鹏程刘锋杜兆龙牛萌肖宇苏镇西刘伟霍现旭赵洪磊蒋菱赵鹏翔赵锦赵正凯王诚
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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