So apparently scientists in Iceland have found a way to inject Carbon Dioxide into the ground and form into stone. Now this is not an instant process but, about 2 years. An Iceland power plant that undertook this project has increased their amount of CO2 burying to 1000 tonnes per year. Unfortunately for every ton of CO2 buried it takes 25 tonnes of water.
In 2010 the total of CO2 was around 9.995 gigatonnes (9.995*10^9). So if we stopped making CO2 in 2010 and they continued with putting 1000 tons a year it would take them 9,995,000 years to complete. So it will be interesting if they can improve upon this process.
Do you think that this is a possible way to diminish the CO2? Or is this pointless unless everyone does this?
Sources:
https://www.co2.earth/global-co2-emissions
http://www.hngn.com/articles/200325/201 ... -stone.htm
(I may have done math wrong. Will double check in the morning)
Carbon Dioxide to Stone
- _Doc
- Full Member
- Posts: 139
- Joined: Mon Sep 14, 2015 11:43 am
- Diet: Vegan
Carbon Dioxide to Stone
Its a nice feeling when people can agree on something. Don't you agree?
- miniboes
- Master of the Forum
- Posts: 1578
- Joined: Mon Sep 15, 2014 1:52 pm
- Diet: Vegan
- Location: Netherlands
Re: Carbon Dioxide to Stone
I don't have nearly the scientific understanding required to make a good judgement on how useful this is, but it seems to me that the water cost is a big issue.
"I advocate infinite effort on behalf of very finite goals, for example correcting this guy's grammar."
- David Frum
- David Frum
- brimstoneSalad
- neither stone nor salad
- Posts: 10370
- Joined: Wed May 28, 2014 9:20 am
- Diet: Vegan
Re: Carbon Dioxide to Stone
I think I can understand what they're doing; I'm guessing they're carbonating the water and then injecting it into the groundwater where it reacts with stone to form carbonates. This is probably fine for areas with a good supply of fresh water. I don't know what their energy costs are for carbonating the water in the first place though.
- miniboes
- Master of the Forum
- Posts: 1578
- Joined: Mon Sep 15, 2014 1:52 pm
- Diet: Vegan
- Location: Netherlands
Re: Carbon Dioxide to Stone
Is that the same process as carbonating water for drinking purposes? Could we theoretically drink that carbonated water or would it be toxic?brimstoneSalad wrote:I think I can understand what they're doing; I'm guessing they're carbonating the water and then injecting it into the groundwater where it reacts with stone to form carbonates. This is probably fine for areas with a good supply of fresh water. I don't know what their energy costs are for carbonating the water in the first place though.
"I advocate infinite effort on behalf of very finite goals, for example correcting this guy's grammar."
- David Frum
- David Frum
- brimstoneSalad
- neither stone nor salad
- Posts: 10370
- Joined: Wed May 28, 2014 9:20 am
- Diet: Vegan
Re: Carbon Dioxide to Stone
Probably. Depends on how they're doing it. If they're injecting the stream of exhaust straight into the water, I doubt you would want to drink it.miniboes wrote: Is that the same process as carbonating water for drinking purposes? Could we theoretically drink that carbonated water or would it be toxic?
- _Doc
- Full Member
- Posts: 139
- Joined: Mon Sep 14, 2015 11:43 am
- Diet: Vegan
Re: Carbon Dioxide to Stone
The source is straight from the power plant.brimstoneSalad wrote:Probably. Depends on how they're doing it. If they're injecting the stream of exhaust straight into the water, I doubt you would want to drink it.miniboes wrote: Is that the same process as carbonating water for drinking purposes? Could we theoretically drink that carbonated water or would it be toxic?
Yes that is what they are doing. The CO2 combines with calcium, magnesium or iron in which produces carbonate.brimstoneSalad wrote:I think I can understand what they're doing; I'm guessing they're carbonating the water and then injecting it into the groundwater where it reacts with stone to form carbonates. This is probably fine for areas with a good supply of fresh water. I don't know what their energy costs are for carbonating the water in the first place though.
(More detailed process)
"Waste carbon dioxide is first separated from steam and then dissolved in water, forming carbonic acid. The solution is then pumped 550 yards underground into a basalt formation, where the acidity leaches elements like calcium and magnesium from the surrounding rocks. Over time, the solution flows through the basalt formation and these elements recombine to form minerals like limestone." ~Scientific American
Couldn't find info on the power usage on delivering the water underground.
Found out it cost 17$ per ton of CO2
https://www.sciencenews.org/article/vol ... ast?tgt=nr
https://www.washingtonpost.com/news/ene ... nto-stone/
http://www.scientificamerican.com/artic ... nto-stone/
Its a nice feeling when people can agree on something. Don't you agree?
- brimstoneSalad
- neither stone nor salad
- Posts: 10370
- Joined: Wed May 28, 2014 9:20 am
- Diet: Vegan
Re: Carbon Dioxide to Stone
How much power does it take to do it compared to the power generated?_Doc wrote: Found out it cost 17$ per ton of CO2