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Detrytus | 2 months ago

This solves only part of the problem: it captures CO2 and can release it later. But you still need to figure out what to do with this CO2, how to turn it into something useful.

discuss

order

pgrohe|2 months ago

A startup from Quebec is using an electrochemical process to produce potassium formate from CO2.

Electro Carbon https://www.electrocarbon.ca/en

https://sustainablebiz.ca/clear-the-runway-electro-carbon-be...

Their process for generating potassium formate is greener than standard methods. It does require electricity as an input but that can come from renewable, green sources.

Potassium formate is used in de-icing products, fertilizer, heat transfer fluids, drilling fluid, etc... so a useful, monetizeable output comes out of the process.

Disclosure - Know the founders personally. Wanted to shoutout their work. No financial ties to the company.Chemistry is not at all my expertise & I don't have details on their process beyond what's on the website.

mnky9800n|2 months ago

you can inject it into peridotites and let it mineralize. there is enough exposed peridotite outcrops in the world that we could inject all the co2 produced and store it there indefinitely. this process also produces elemental hydrogen.

cjbenedikt|2 months ago

Do you have any links on research on that? Serious question.

jnsaff2|2 months ago

Stable storage would be limestone. To bring it down to pre-industrial levels it would mean that each person on earth would get a cube of 5 meters a side.

IDK, build houses out of limestone like we have been doing for ages.

probably_wrong|2 months ago

I'm fine with keeping it inside something brick-shaped and chucking it down an abandoned mine from where it can be retrieved at a later time. It would definitely be a storage improvement over "the atmosphere and our lungs".

S3verin|2 months ago

It can be used as an energy storage by compressing / releasing + powering a turbine. Good for storing excess wind + solar energy.

NetMageSCW|2 months ago

If it is reasonably energy efficient, this could be used to feed a methane processor, especially on Mars.

nozzlegear|2 months ago

The answer is obvious: create a cryptocurrency-based economy where countries and citizens are incentivized to pull CO2 out of the atmosphere and ship it into space in exchange for crypto.

/s

One of the subplots from the excellent Delta-V series by Daniel Suarez.