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A comment on Direct conversion of CO2 to solid carbon by Gallium-based liquid metals. Parent comment

Re:Direct conversion of CO2 to solid carbon by Gallium-based... by dqpb on Tuesday January 18, 2022 @10:48PM (#29989746)
> So use that energy directly

This would use that energy directly. To sequester carbon.

> why burn carbon

I didn’t say anything about burning carbon.

[ Parent | on HN ]
Re:Direct conversion of CO2 to solid carbon by Gallium-based... by MagnumOpus on Wednesday January 19, 2022 @10:30AM (#29994868)
This tech can only sequester CO2 without the presence of O2. Where does CO2 occur without O2? In the exhaust of power plants/engines/heaters that burn hydrocarbons.

If you didn't say anything about burning carbon, you weren't paying attention.

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Re:Direct conversion of CO2 to solid carbon by Gallium-based... by dqpb on Thursday January 20, 2022 @12:54PM (#30012216)
> This tech can only sequester CO2 without the presence of O2. Where does CO2 occur without O2?

Here is a system for collecting CO2 from ambient air and discharging a stream of pure CO2:

https://news.mit.edu/2019/mit-engineers-develop-new-way-remo...

> If you didn't say anything about burning carbon, you weren't paying attention.

Wrong.

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