Rapid temperature swing adsorption rotating wheel type direct air carbon dioxide trapping system and method

Abstract

The invention discloses a rapid temperature swing adsorption rotating wheel type direct air carbon dioxide trapping system. The rapid temperature swing adsorption rotating wheel type direct air carbondioxide trapping system comprises a rotating wheel, an adsorption flow path and a regeneration flow path, wherein the regeneration gas flows in the regeneration flow path in a second direction opposite to the first direction, the regeneration gas is water vapor generated by heating of the water vapor generator, the heated regeneration gas flows through a regeneration area of the rotating wheel and then enters the condenser to be condensed, liquid obtained through condensation is condensate water, the condensate water flows into the water vapor generator through a condensation pipeline, and the gas obtained by condensation separation is the collected carbon dioxide gas. In addition, the invention further discloses a rapid temperature swing adsorption rotating wheel type direct air carbon dioxide trapping method. According to the invention, direct and rapid trapping of carbon dioxide in air is realized, and the adsorbent is regenerated by using negative pressure steam so that the energyconsumption of the system is effectively reduced.

Description

technical field [0001] The invention relates to a carbon dioxide capture system and its operating method, in particular to a temperature-swing adsorption wheel-type direct air carbon dioxide capture system and its method. Background technique [0002] In recent years, the massive combustion of fossil fuels has continuously increased the concentration of carbon dioxide in the air, leading to an increasingly serious problem of global warming. The increase in global population has increased people's demand for energy, and fossil fuels will remain the main source of energy for social development in the next few decades. Traditional carbon capture models, such as pre-combustion capture and post-combustion capture from large point sources, can slow the increase in atmospheric carbon dioxide concentrations, but only direct capture of carbon dioxide from the air can really reduce the concentration of carbon dioxide in the air "Negative Carbon Technology". [0003] The existing car...

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Problems solved by technology

The treatment gas of the existing rotary carbon dioxide adsorption devices is mostly flue gas from power plants. At present, there is still a lack of research and reports on the direct and rapid capture of carbon dioxide in the air.

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