Atmospheric carbon dioxide removal process
View Patent ↗The invention is a method for removing carbon dioxide gas from ambient air using water and solid barium hydroxide in a reaction vessel. Incoming and outgoing water is supplied by freshwater and wastewater treatment plants through underground piping. The reaction vessel has an upper part and a jacket, which is heated by hydrogen gas. The vessel has a series of discharge ports on the upper part, and a conversion facility is located in an area of high greenhouse gas concentration. The barium hydroxide reacts with carbon dioxide to produce barium carbonate, which is sold along with the discharge water to generate revenue. The method provides a promising solution for mitigating the effects of climate change by reducing carbon emissions from the atmosphere.
1 . A method for removing carbon dioxide from ambient air, the method comprising:
providing a reaction vessel including an upper chamber and a lower chamber, the lower chamber including a lid movable between a closed position and an open position;
introducing water and solid barium hydroxide into the upper chamber and mixing the water and solid barium hydroxide to form a supersaturated aqueous hydroxide mixture;
introducing incoming ambient air into the supersaturated aqueous hydroxide mixture using an injection syringe operatively coupled to a blower motor;
wherein the injection syringe is configured to extend and retract along a defined travel path within the upper chamber to aerate the supersaturated aqueous hydroxide mixture;
reacting the carbon dioxide from the incoming ambient air with the supersaturated aqueous hydroxide mixture to form barium carbonate within the upper chamber;
opening the lid of the lower chamber to permit transfer of contents from the upper chamber into the lower chamber;
separating, within the lower chamber, water from the barium carbonate using a sift;
wherein the sift permits passage of the water while retaining the barium carbonate;
routing the separated water from the lower chamber into wastewater piping;
drying the retained barium carbonate within the lower chamber using a heated jacket associated with the reaction vessel; and,
after drying, opening the sift to release the barium carbonate into a solid exit having a gate for controlled removal of the barium carbonate from the reaction vessel.
2 . The method of claim 1 , further comprising operating a control system configured to:
control the blower motor to introduce the incoming ambient air to the injection syringe;
control the extension and retraction of the injection syringe along the defined travel path during the aeration of the supersaturated aqueous hydroxide mixture; and, control application of heat to the heated jacket during the drying of the barium carbonate.