Independent solar direct thermal-driven system capable of removing CO2 by means of mixed working media

Abstract

The invention discloses an independent solar direct thermal-driven system capable of removing CO2 by means of mixed working media. The system comprises a flue gas pretreatment unit, and an absorber, a solution pump, a solution heat exchanger, a desorption generator, a condensation liquid trap and a CO2 compressor are sequentially connected with the flue gas pretreatment unit; mixed gas containing carbon dioxide enters the absorber to be absorbed by the mixed media and then enters the desorption generator to be separated, and a thermal collection assembly provides an energy driving system needed by system regeneration. According to the independent solar direct thermal-driven system capable of removing the CO2 by means of the mixed working media, by means of exchange of heat achieving regeneration and absorption of the working media at high temperature and absorption of a mixed solution at low temperature, the use ratio of the heat is increased; an infusion pump and a recooler of a conventional system are replaced with a throttle valve, solar thermal collection serves as thermal driving energy, the purpose of energy conservation and emission reduction of carbon-bearing flue gas in the field of industry is achieved, and meanwhile the system is more compact; meanwhile, the application field of a solar medium-temperature collector can be enlarged, and multiple interests of energy conservation, emission reduction and economic benefit are achieved.

Description

technical field [0001] The invention relates to a method for removing CO using solar energy as a driving heat source 2 The technology specifically relates to an independent solar direct thermal drive using a mixed working fluid to remove CO 2 system. Background technique [0002] The development of industrial technology has led to a sharp increase in the consumption of fossil fuels, resulting in an increase in the concentration of carbon dioxide in the atmosphere and global warming. 2 Releasing into the air after removal has become an important strategic option to deal with climate change. Therefore, the key to tackling global climate change and acid rain pollution is to control carbon dioxide emissions. Recycling and separating carbon dioxide has huge economic and environmental benefits. Purified carbon dioxide can be used in many ways, not only as a source of carbon, but also through different reaction pathways to generate a variety of carbon products that are related t...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the technical bottleneck of high regeneration energy consumption of existing decarbonization equipment, and provide a low-energy decarbonization that uses renewable energy and other energy sources with low carbon emissions as desorption heat sources and low regeneration energy consumption System equipment, while improving and simplifying the system equipment used in existing industrial production, saving initial investment and making the system more compact

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