| Autor: |
Murdoch, Lawrence C., Germanovich, Leonid N., Slack, William W., Carbajales-Dale, Michael, Knight, Douglas, Moak, Robert, Laffaille, Clemence, DeWolf, Scott, Roudini, Soheil |
| Zdroj: |
Environmental Science & Technology; June 2023, Vol. 57 Issue: 23 p8536-8547, 12p |
| Abstrakt: |
Geologic carbon storage currently implies that CO2is injected into reservoirs more than 1 km deep, but this concept of geologic storage can be expanded to include the injection of solid, carbon-bearing particles into geologic formations that are one to two orders of magnitude shallower than conventional storage reservoirs. Wood is half carbon, available in large quantities at a modest cost, and can be milled into particles and injected as a slurry. We demonstrate the feasibility of shallow geologic storage of carbon by a field experiment, and the injection process also raises the ground surface. The resulting CO2storage and ground uplift rates upscale to a technique that could contribute to the mitigation of climate change by storing carbon as well as helping to adapt to flooding risks by elevating the ground surface above flood levels. A life-cycle assessment indicates that CO2emissions caused by shallow geologic storage of carbon are a small fraction of the injected carbon. |
| Databáze: |
Supplemental Index |
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