Carbon capture technology works by separating CO₂ from other gases using expensive solvents that attract the molecules like iron filings to a magnet. Once captured, the CO₂ can be buried deep underground in places such as depleted oil and gas wells, where it remains for centuries. But that process has its challenges. On top of the high cost, companies also have to figure out how to transport the CO₂ and find the right geological structures in which to store it.
Dimensional Energy is attempting to make useable fuel from waste carbon and sunlight. Their process works by adding water to captured carbon and heating the mixture to high temperatures using electricity generated from solar panels. Catalysts are introduced that combine the carbon and hydrogen atoms from water into a compound that can be turned into fuel for cargo ships and passenger planes.
The problem for companies such as Dimensional is that CCU was born as a means of raising funding for carbon capture technologies. But today, with scores of governments and companies setting targets to zero out emissions, there’s been a surge in investor interest in companies that simply capture CO₂ and store it away.
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