Most of the CO2 conversion processes need to operate at high temperatures and pressures, which translates to significant energy consumption for the process. While the use of renewable energy could bring down the carbon footprint of these processes, they still can be quite expensive owing to the extent of energy needed.
Is it possible that these processes could take place at lower temperatures and pressures?
One avenue seems to be the use of plasma.
Researchers have found a way to convert carbon dioxide into liquid fuels and value-added chemicals using plasma, which allows the process to be both lower temperature and lower pressure compared to traditional methods.