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Carbon capture at room temperature

TheMotorcycleBoy
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Carbon capture at room temperature

#205294

Postby TheMotorcycleBoy » March 4th, 2019, 6:36 am

Anyone else heard about this:

https://www.sciencedaily.com/releases/2 ... 112429.htm

some snippet on R4 I heard first thing got me 'a google-ing.

PeterGray
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Re: Carbon capture at room temperature

#205305

Postby PeterGray » March 4th, 2019, 8:38 am

Mind you, plants have been doing it at room temperature for billions of years!

TheMotorcycleBoy
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Re: Carbon capture at room temperature

#205307

Postby TheMotorcycleBoy » March 4th, 2019, 8:52 am

Of course. But then we would have to reforest the globe to take things back to being a fully-functioning C02->02 factory.

I guess if humanity can access this at room temp. then it has to be pretty cool science, if you'll pardon my pun.

tjh290633
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Re: Carbon capture at room temperature

#205316

Postby tjh290633 » March 4th, 2019, 9:21 am

TheMotorcycleBoy wrote:Of course. But then we would have to reforest the globe to take things back to being a fully-functioning C02->02 factory.

I guess if humanity can access this at room temp. then it has to be pretty cool science, if you'll pardon my pun.

Not really. It's only a question of doing what plants do in a chemical plant. Also of accelerating the time scale to suit perceived needs.

Bear in mind that the carbon cycle has an overall time scale of a few million years. Plants do their thing continuously, but that is only a small part of the cycle. You don't need to reforest the entire planet, just replace trees that are harvested. Good woodland management does just that.

TJH

dspp
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Re: Carbon capture at room temperature

#205321

Postby dspp » March 4th, 2019, 9:37 am

Interesting. What exactly is a room temperature liquid metal ? The only one I know of is mercury. Does anybody know what the magic juice is in this catalyst ?

regards, dspp

TheMotorcycleBoy
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Re: Carbon capture at room temperature

#205353

Postby TheMotorcycleBoy » March 4th, 2019, 11:18 am

tjh290633 wrote:
TheMotorcycleBoy wrote:Of course. But then we would have to reforest the globe to take things back to being a fully-functioning C02->02 factory.

I guess if humanity can access this at room temp. then it has to be pretty cool science, if you'll pardon my pun.

Not really. It's only a question of doing what plants do in a chemical plant. Also of accelerating the time scale to suit perceived needs.

Watch this and tell me that photosynthesis isn't cool science....
https://www.youtube.com/watch?v=_RSKI5A_lsg

dspp wrote:Interesting. What exactly is a room temperature liquid metal ? The only one I know of is mercury. Does anybody know what the magic juice is in this catalyst ?

regards, dspp

I'm not sure Dave, I just literally heard it on R4 first thing, and googled and found that document link. Think a lot of the research has happened in Oz so far...also found this:

https://cosmosmagazine.com/chemistry/sc ... emperature

Matt

TheMotorcycleBoy
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Re: Carbon capture at room temperature

#205355

Postby TheMotorcycleBoy » March 4th, 2019, 11:21 am

tjh290633 wrote:ou don't need to reforest the entire planet, just replace trees that are harvested. Good woodland management does just that.

In theory you'd need to address more than just replacing trees. You'd need extra trees to capture all the extra C released from the trapped oil and gases which we extract and burn and lob up into the blue envelope which surrounds us ;)

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Re: Carbon capture at room temperature

#205365

Postby Nimrod103 » March 4th, 2019, 11:46 am

I am mystified why people fix on trees for photosynthesis, when 50-85% of the oxygen in the Earth's atmosphere is generated by phytoplankton in the oceans, which after all cover 70% of the globe (https://earthsky.org/earth/how-much-do- ... lds-oxygen). Not only that, but in some places like the Black Sea, the carbon absorbed by phytoplankton is completely removed from the biosystem and incorporated back into rock.

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Re: Carbon capture at room temperature

#205553

Postby AJC5001 » March 4th, 2019, 11:23 pm

TheMotorcycleBoy wrote:Anyone else heard about this:

https://www.sciencedaily.com/releases/2 ... 112429.htm

some snippet on R4 I heard first thing got me 'a google-ing.


When I heard this today, I thought it would be really clever if they could make graphene rather than coal.

Now that might have people talking. :)

Adrian

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Re: Carbon capture at room temperature

#205556

Postby Alaric » March 4th, 2019, 11:36 pm

AJC5001 wrote:When I heard this today, I thought it would be really clever if they could make graphene rather than coal.


If this works, wouldn't you want to apply it to where combustion produces amounts of CO2? So that's power stations and transport.

TheMotorcycleBoy
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Re: Carbon capture at room temperature

#205575

Postby TheMotorcycleBoy » March 5th, 2019, 7:26 am

dspp wrote:Interesting. What exactly is a room temperature liquid metal ? The only one I know of is mercury. Does anybody know what the magic juice is in this catalyst ?

regards, dspp

The embarrassing thing being that when I discussed this tech with my daughter last night, she'd already guessed that it had to be gallium, which will melt in one's hand.

https://en.wikipedia.org/wiki/Gallium

dspp
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Re: Carbon capture at room temperature

#205599

Postby dspp » March 5th, 2019, 9:05 am

TheMotorcycleBoy wrote:
dspp wrote:Interesting. What exactly is a room temperature liquid metal ? The only one I know of is mercury. Does anybody know what the magic juice is in this catalyst ?

regards, dspp

The embarrassing thing being that when I discussed this tech with my daughter last night, she'd already guessed that it had to be gallium, which will melt in one's hand.

https://en.wikipedia.org/wiki/Gallium


Well done to her.

Whether or not this is technically & economically feasible for large scale CCS roll-out to (esp) coal, it will be seized upon by the coal via CCS crowd as yet another reason to not junk coal. However since coal is struggling at even current renewables costs I cannot see coal being economically viable if CCS costs of any sort are loaded onto it.

Therefore if this genuinely works the most likely applications would be steel & cement exhausts.

It will be interesting to read more idc.

regards, dspp

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Re: Carbon capture at room temperature

#205621

Postby PeterGray » March 5th, 2019, 9:45 am

There's got to be an energy input (apart from needing vast amounts of gallium). What is it?

Otherwise you would have something approaching perpetual motion - set one up by a coal power station, recapture the carbon, burn that again (adding back the O2 you released when you captured the carbon) and repeat! Nice idea, but...

TheMotorcycleBoy
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Re: Carbon capture at room temperature

#205637

Postby TheMotorcycleBoy » March 5th, 2019, 10:29 am

PeterGray wrote:There's got to be an energy input (apart from needing vast amounts of gallium). What is it?

Otherwise you would have something approaching perpetual motion - set one up by a coal power station, recapture the carbon, burn that again (adding back the O2 you released when you captured the carbon) and repeat! Nice idea, but...

The most logical source would be wind, wave or solar wouldn't it?

:lol:

EDIT: The point of the thread, for me, was a commentary on science and application, not political will....


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