Japanese scientists have developed a new compound that captures carbon dioxide while showing 99 percent efficiency. This is the fastest system in the world – at least twice as good as its counterparts.

Details of the invention

• Technologies for direct capture and storage of CO₂ Expel air or exhaust through a filter or catalyst, often including magnetic sponges, zeolite foam, or materials made from clay or coffee grounds. Others pass air through a liquid that may or may not absorb CO.₂or to solid crystals or flakes.
• Experts from Tokyo Metropolitan University used a self-developed hybrid system based on liquid amines. One such compound, isophorondiamine (IPDA), has been shown to be particularly effective.
• During the tests, the IPDA was able to remove 99 percent of the carbon dioxide in the air with the CO concentration.₂equal to 400 parts per million – this roughly corresponds to the current level of this gas in the atmosphere.
• The process was at least twice as fast as other direct capture systems.
• separated CO₂ It enters the plates of solid carbamic acid, which is simply removed from the liquid in which they are contained.
• If necessary, carbon dioxide can be easily converted into a gas by heating the plates to 60 degrees Celsius.
• All technology is reusable.

The new technology looks promising, but as always, the issue of scalability arises. Humanity emits about 30 billion tons of CO per year₂ into the atmosphere and the largest carbon removal and storage facilities process 4,000 tons per year. Therefore, plants built according to this approach take a lot to remove the amount of carbon dioxide from the atmosphere needed to bring the temperature down.

Researchers are currently working to improve the system and find possible ways to use the captured carbon more.