Poly-generation system and method coupling aluminum energy storage and supercritical CO2 circular power generation

A cyclic power generation and supercritical technology, applied in chemical instruments and methods, hydrogen production, energy input, etc., can solve the problems of high energy storage density and low self-consumption loss, and achieve high energy density, reduced emissions, and energy storage The long-term effect

Pending Publication Date: 2020-11-20
XIAN THERMAL POWER RES INST CO LTD
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Benefits of technology

This patented method allows for efficient use of both metallothermal (MTP) or thermochemistry methods when producing electrical current from waste heat sources like coal burning plants. By combining these techniques with an improved version of traditional thermal cycles called PolyGenerators, this new approach will have longer periods of stored potential than previous designs due to its ability to store more energy compared to existing systems. Additionally, it offers higher efficiencies at lower temperatures during redox processes. Overall, this innovative design provides environmental benefits such as reducing emissions associated with fossil fuels used in conventional combustion engines.

Problems solved by technology

The technical problem addressed by this patents relates to improving the efficiency or performance of electricity generators used for generating greenhouse gas emissions from combustion sources like coal burning plants. Current methods involve storing more fuel than needed during peak times but they also result in decreased capacity at lower temperatures when stored under less favorable conditions compared to what was previously possible through use of alternative fuels (such as natural gas). This results in increased costs associated with purchasing these alternatives.

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  • Poly-generation system and method coupling aluminum energy storage and supercritical CO2 circular power generation

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Embodiment Construction

[0014] The present invention is described in further detail below in conjunction with accompanying drawing:

[0015] refer to figure 1 , a polygeneration system coupling aluminum energy storage and supercritical CO2 cycle power generation, including a metal fuel aluminum energy storage subsystem and a supercritical CO2 cycle power generation subsystem;

[0016] The metal fuel aluminum energy storage subsystem comprises alumina electrolysis device 1, lye reactor 2, NaAlO2 reactor 3, Al(OH)3 reactor 4 and hydrogen storage tank 5; the power supply of alumina electrolysis device 1 can be controlled by Renewable energy supply, the cathode of the alumina electrolysis device 1 is connected to the fuel inlet of the lye reactor 2, and the metal fuel aluminum produced by the electrochemical reaction is sent to the lye reactor 2, and the metal fuel aluminum is mixed with water in the lye reactor 2 Exothermic reaction takes place and produces hydrogen, and the chemical reaction equation is

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Abstract

The invention discloses a poly-generation system and method coupling aluminum energy storage and supercritical CO2 circular power generation. The system comprises a metal fuel aluminum energy storagesub-system and a supercritical CO2 circular power generation sub-system. According to the poly-generation system and method, aluminum energy storage based on metal fuel, supercritical CO2 circular power generation, hydrogen production and sodium carbonate and sodium bicarbonate production are effectively coupled, and the advantages that the energy storage density is high, the energy storage periodis long, permanent storage can be achieved, the fuel is cyclically regenerated and is free of consumption, poly-generation of electric power, hydrogen, sodium carbonate and sodium bicarbonate can beachieved, and global energy trade can be carried out conveniently are achieved.

Description

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Claims

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Application Information

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Owner XIAN THERMAL POWER RES INST CO LTD
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