Direct conversion of CO2 to solid carbon by Gallium-based liquid metals

Re:Direct conversion of CO2 to solid carbon by Gallium-based... by yetihehe on Wednesday January 19, 2022 @02:12AM (#29990849)

If you burn carbon, you can just decrease your air input to furnace. It is not done today because it causes lots of CO, which is very poisonous. If you don't care about CO like in this process, you an put O2 sensor (lambda sensor, used in all new cars to alter how much air is used) and almost eliminate oxygen from your output.

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Re:Direct conversion of CO2 to solid carbon by Gallium-based... by progre on Wednesday January 19, 2022 @04:23AM (#29991543)

I wonder if it might be possible to add a separations stage (centrifugal gas separator perhaps) and redirect any remaining oxygen back to the furnace?

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Re:Direct conversion of CO2 to solid carbon by Gallium-based... by yetihehe on Wednesday January 19, 2022 @05:51AM (#29992112)

Technically yes, but practically no. It's much easier to just let in less air, you just set your blower to slightly less power, controlled by sensor.

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