A process for capture of carbon dioxide comprising the steps of contacting the carbon dioxide with at least one metal carbonate in an aqueous organic solvent at a predetermined temperature.

A method of purifying air polluted by smoke and fumes, such as from wildfires and other hazard, may deploy a series of fluid filled vessels that act as filters to trap and/or neutralize components that would foul an aqueous suspension of gold nanoparticles that is effective in converting toxic carbon monoxide to carbon dioxide. Non-toxic fluids may be used. As the gold nanoparticles are effective in a basic solution, the solution may contain a visible pH indicator or an apparatus that deploys the method may continuously monitor the pH thereof.

Techniques according to the present disclosure include capturing carbon dioxide from a dilute gas source with a CO.sub.2 capture solution to form a carbonate-rich capture solution; separating at least a portion of carbonate from the carbonate-rich capture solution; forming an electrodialysis (ED) feed solution; flowing a water stream and the ED feed solution to a bipolar membrane electrodialysis (BPMED) unit; applying an electric potential to the BPMED unit to form at least two ED product streams including a first ED product stream including a hydroxide; and flowing the first ED product stream to use in the capturing the carbon dioxide from the dilute gas source with the CO.sub.2 capture solution.

The present disclosure relates to an apparatus, system and method for selectively capturing a carbon-containing gas from an input gas mixture.

A method for capturing carbon from a source of volatile pollutants includes the steps of capturing a mixture of volatile pollutants and air from the source of volatile pollutants, transporting the volatile pollutant-air mixture to an oxidizer module, converting the volatile pollutants into carbon dioxide within the oxidizer module, transporting the carbon dioxide from the oxidizer module to a contactor, loading the carbon dioxide onto sorbents within the contactor, and separating the carbon dioxide from the loaded sorbents to produce a concentrated carbon dioxide product stream. The step of separating the carbon dioxide from the loaded sorbents may optionally include the steps of passing the loaded sorbents to the oxidizer module, and then heating the loaded sorbents in the oxidizer module with the combustion of the mixture of volatile pollutants and air within the oxidizer module to produce the concentrated carbon dioxide product stream while regenerating the sorbents.

A carbon dioxide separator includes an absorption tower for producing a carbon dioxide-rich absorbent and a carbon dioxide-depleted flue gas by reaction of a carbon dioxide-containing flue gas and an absorbent contained therein; a regeneration tower for removing the carbon dioxide-rich absorbent transferred from the absorption tower in the presence of the flowing gas to separate the same into a carbon dioxide-rich treatment gas and a carbon dioxide-lean absorbent; and a separation membrane module for selectively membrane-separating and concentrating the carbon dioxide, wherein the carbon dioxide-containing flue gas is transferred to the absorption tower as a carbon dioxide-lean flue gas obtained via the separation membrane module, and the flowing gas is transferred to the regeneration tower as the carbon dioxide-rich flue gas obtained via the separation membrane module from the carbon dioxide-containing flue gas.

A fossil fuel fired power plant exhaust gas clean-up and recovery system is provided to remove detrimental exhaust gases from the power plant exhaust and to produce and reclaim various commercial byproducts. A process includes mixing one liquid solution with a solubilizer in a mixing tank containing water to create a chemical reaction therein to produce an ionic solid compound and an alkaline liquid solution. Simultaneously directing the flue gases and the alkaline liquid solution into the wet scrubber to create a chemical reaction therein. The chemical reaction removes various detrimental exhaust gases from the flue gases and captures CO.sub.2 gases therefrom, which are chemically transferred into a newly formed sodium bicarbonate solution. The sodium bicarbonate solution exiting the wet scrubber is stored for resale or reuse in the subject process. The process uses various pathways to distribute the sodium bicarbonate for producing other byproducts.

A carbon processing system comprises an air mover and a multi-stage reactor. The multi-stage reactor processes ambient air and generates carbon dioxide and generates exhausted gas released to ambient air. In operation, air contacts the base solution via the air mover. The air reacts with the base solution thereby generating a base solution having carbon dioxide and generating exhaust (absorption reaction). Next, the exhaust is released from the reactor. Next, heat is applied to the base solution having carbon dioxide thereby generating carbon dioxide and generating a base solution without carbon dioxide (desorption reaction). The base solution without carbon dioxide generated after applying heat is reusable in processing new air. The absorption reaction and desorption reaction are reversible reactions resulting in regeneration of the base solution into its form prior to contact with the air yielding high scalability and less processing volume as required by many conventional carbon processing techniques.

A scrubbing assembly for treating malodorous air by chemical scrubbing one or more chemical components from an influent airflow, particularly one or more chemical components that have become airborne from chemical intervention solutions used during food processing, such as vapors from peroxycarboxylic acid solutions used during food processing. The peroxycarboxylic acid vapors are removed from air in a continuous manner within the scrubber assembly utilizing a neutralizing chemical solution to provide a treated effluent airflow that can be returned back to the point of use area from which the malodorous air was removed for treatment.

A flue gas can be cooled for carbon capture purposes with the use of a gas-to-gas exchanger, using air as the cooling media, downstream of a heat recovery process, and optionally upstream of a quenching process; the use of an amine chilling process to reduce the required flue gas cooling duties upstream of the CO.sub.2 absorber; the use of a gas-to-gas exchanger, using the absorber overhead as the cooling media, downstream of a heat recovery process, and optionally upstream of the quenching process; and/or the use of a quenching process in which heated water and condensate is cooled by an external cooling loop utilizing treated flue gas condensate in an evaporative cooling process.