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CO2 extraction for methane production is planned on mars, where the relative ratio of CO2 in the atmosphere is much higher. On Earth, CO2 is only 0.04%, which
by grondilu 9y ago
CO2 extraction for methane production is planned on mars, where the relative ratio of CO2 in the atmosphere is much higher. On Earth, CO2 is only 0.04%, which makes it quite difficult to extract.
- ygra 9y agoHe also noted it's a long-term plan on Earth. Use solar power and extract CO₂ from the atmosphere.
- andygates 9y agoThe kicker for Earth is that it's a lot easier and cheaper to make CH4 from biological sources (fossil fuels, fermenters, etc), so nobody does it at scale. All the solutions (IIRC) need high temperature and a catalyst, which isn't surprising as we're un-burning rocket fuel. With cheap plentiful solar energy it's more practical; as Mars has no bio-sources of scale it's essential.