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The most expensive/capital intensive part of Direct Air Capture is the CO2 extraction, since CO2 is relatively low concentration in air. Conversion of waste bi
by jasonlaramburu 5y ago
The most expensive/capital intensive part of Direct Air Capture is the CO2 extraction, since CO2 is relatively low concentration in air.
Conversion of waste biomass into biochar is both more capital efficient and energy efficient, since the plants themselves facilitate the CO2 extraction.
- Teknoman117 5y agoYou just need a lot of surface area to grow that many plants. Does conversion to "biochar" allow recovery of the nutrients you need to grow more plants? Or are we also sequestering nitrates, phosphorous, etc. as well?
- jasonlaramburu 5y agoYes it does, the pyrolysis conditions (the process to make biochar) will influence what % of nutrients are recovered in a plant available form. We could actually capture gigatons using only the leftover waste from our current commercial agricultural production.