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MIT scientists propose power storage using cement blocks
(www.datacenterdynamics.com)
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this post was submitted on 04 Aug 2023
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And how greenhouse gas intensive is carbon black production?
If you’re releasing CO2 you’re losing carbon.
If you make it with electricity it’s effectively a carbon sink.
If it's just a byproduct of other industries, like existing coal power plants, it might be seen as carbon neutral. And lithium batteries also use it.
Carbon black is produced bij burning a hydrocarbon with a limited amount of air. It's not a byproduct, but uses organic materials. This can be of renewable sources like vegetable oil, but it is made a lot from the heavy fractions in fossil oil.