The American train startup of CO2 Rail has developed a train wagon project that captures carbon from the air. According to the plan, modified wagons will cross the country, thus eliminating the need for large stationary facilities for CO2 removal.
The researchers plan to use specially constructed rail cars with large ventilation openings, which will be used when the train is moving at high speeds. The system will be in motion, so no fans are required, which are usually installed in fixed direct carbon capture systems. This will save a lot of energy.
The futuristic train cars will be equipped with carbon dioxide collection cameras, which will then be concentrated and stored in a liquid tank; air that does not contain carbon dioxide will be released back into the atmosphere from the rear or bottom of the wagon.