Novel amino thermochemical energy storage system

An energy storage system and thermochemical technology, which is applied in the fields of heat generation by exothermic chemical reaction, heat generation by non-combustion exothermic chemical reaction, heating fuel, etc. It can solve the problem of harsh reversible reaction conditions, low system energy storage efficiency, Incomplete conversion and other problems, to solve the problem of rapid heat transfer, improve system efficiency, and improve the effect of reaction conversion rate

Active Publication Date: 2015-07-29
NANJING UNIV OF TECH
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  • Claims
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Problems solved by technology

However, the existing amino thermochemical energy storage system still has some problems to be solved, such as the long-term safe storage of hydrogen, nitrogen an...

Method used

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  • Novel amino thermochemical energy storage system

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Embodiment

[0023] figure 1 It is Embodiment 1 of the novel amino thermochemical energy storage system of the present invention. Including ammonia decomposition heat storage reactor 1, regenerator 2, pressure regulating tank 3, pressure regulating compressor 4, gas cooler 5, low-pressure liquid ammonia storage tank 6, ammonia feed pump 7, low-pressure compressor 8, motor 9, Heat storage tank 10, high-pressure compressor 11, electric motor 12, high-pressure gas storage tank 13, regenerator 14, ammonia synthesis exothermic reactor 15, high-pressure expander 16, generator 17, low-pressure expander 18, generator 19, Process condenser 20, steam turbine 21, generator 22, process condenser 23, feed water pump 24, liquid ammonia switch valve 26, liquid ammonia pressure reducing valve 29, pressure regulating switch valve 35, gas switch valve 46, pipeline (25 , 27, 28, 30, 31, 32, 33, 34, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 53, 54 , 55, 56, 57, 58) etc. The specific o...

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Abstract

The invention discloses a novel amino thermochemical energy storage system. An amino thermochemical reversible reaction is adopted and the energy storage is performed through the mutual conversion among the electric energy, the thermal energy and the chemical energy, wherein the formula is as follows. The novel amino thermochemical energy storage system mainly comprises a storage unit, an energy storage unit, an energy release unit, a thermal storage tank and the like. During energy storage, a heat absorption decomposition reaction of the ammonia is produced under the action of a catalyst and the accepted energy is stored in the gaseous decomposition product nitrogen and hydrogen in forms of chemical energy and pressure energy through compression. During energy release, a reversible thermochemical reaction of the nitrogen and the hydrogen is produced under the action of a catalyst, the stored chemical energy is converted into the high grade thermal energy to be released for steam power generation, and the power generation is performed through reaction product gas expansion. The novel amino thermochemical energy storage system has the advantages of being high in energy storage density, high in efficiency, environmentally-friendly, reliable in application and suitable for various types of power stations comprising renewable energy power stations.

Description

technical field [0001] The invention relates to the technical field of energy storage, in particular to a novel amino thermochemical energy storage system. Background technique [0002] In the 21st century, energy issues have increasingly become a bottleneck restricting the development of the global economy. The depletion of traditional fossil energy such as coal, oil, and natural gas has made renewable energy such as solar energy and wind energy attract widespread attention. Electric energy storage technology is a key technology for the large-scale utilization of unstable and intermittent renewable energy, and it is also an important means to adjust the peak and valley of the power grid and improve the economy and stability of the power system. Among the current electric energy storage technologies, in addition to the pumped hydropower station and compressed air already operating in large-scale commercial systems, thermochemical energy storage technology provides a new way...

Claims

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Application Information

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IPC IPC(8): F01K23/02F01K25/00F01K25/10F24J1/00C01B3/04F24V30/00
CPCY02E60/36Y02P20/133
Inventor 凌祥杜飞彭浩孙峰李瑞
Owner NANJING UNIV OF TECH
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