A pair of MIT engineers just created a new way to efficiently remove carbon dioxide from the air
While there are alternative ways to remove carbon dioxide from gas, they typically only work well on carbon dioxide levels significantly higher than atmospheric concentrations and require lengthy chemical processes to ultimately remove the carbon dioxide.
The battery consists of thin sheets coated with stacks of electrodes . These electrodes have a natural affinity for carbon dioxide when charging and absorb the gas even at the 400 ppm concentration in the atmosphere. There are a whole host of potential applications to this newly developed method. For instance, soft-drink bottling plants use carbon dioxide to carbonate their beverages, sometimes burning fossil fuels to get carbon dioxide. This method could essentially pull CO2 from the atmosphere and provide a pure source for beverage carbonation.
That gas can then be compressed and injected underground, called carbon capture and storage. A growing method for removing carbon dioxide from the atmosphere is to pressurize it and inject it into depleted geologic formations. These geologic formations are commonly depleted oil and gas fields where porous rock has the ability to absorb significant volumes. Alternatively, the gas could be used for industrial applications requiring carbon dioxide.
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