Technology:

A Way to Make Carbon Storage Pay (Scientific American)

Injecting CO2 into hot geothermal brine could generate enough methane to turn a profit

Our design is a closed-loop system that injects CO2 into hot, methane-saturated geothermal brine brought to the surface from deep underground. The CO2-laden brine would be sent back underground for permanent storage. The injection forces out methane and heat, which would be sold for commercial power and heating—paying for the storage. The methane could also power the system and provide energy for carbon capture at the power plant.

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