The energy requirements for storing one ton of co2 are many many times higher than the energy gained from generating one ton of co2 (by oil, gas, coal or biofuel).
So each MWh spent “storing co2” would be ten times more efficient if used to offset oil extraction to get one MWh less out in the first place.
This is wasteful greenwashing. If it wasn’t, we’d have broken physics on the level of making perpetual motion machines.
That’s true but even if we switch entirely over green energy overnight, we’ll still have Steel, still have Bauxite refining for Aluminum, etc, still have to melt and reform glass and aluminum recycled containers, etc, etc.
There are many processes that we really can’t just get rid of, so they will need carbon capture to ensure they’re not hurting the environment.
My brother in Christ, you need massive amounts of electricity to extract aluminum from bauxite. Steel can use electric arc furnaces, as can glass.
Carbon capture and storage is used to re-pressurize under performing oil wells.
Wasn’t there a story about CO2 under a lake in Africa being released naturally and killing a lot of people in the first several minutes because they couldn’t breathe?
Yes, there’s been several events in valleys or depressions that people have been killed.
I thought I’d read that somewhere. Thanks!
*stupid plan
FTFY
What if just put all the co2 into a co2 balloon. I have a balloon. We can use my balloon.
Don’t we have similar objects on the ground? Wouldn’t it be more convenient and cheap to not hassle with the ocean?
The north sea oil fields are huge, and mostly empty now. They also have the infrastructure already built for gas extraction/injection.
Makes sense as a location for a trial in that area.
To remain in a liquid state CO2 needs to be kept under several hundred PSI of pressure and kept fairly cool. Even at only 40F CO2 boils at about 550 PSIG. In above ground tanks you need to worry about elevated ambient temperatures and if that CO2 tank gets to be over about 88F then that CO2 just straight up can’t be liquified. Above 88F you suddenly have a tank of supercritical CO2 which gets a bit more interesting to store for various reasons.
The deep ocean it actually a fairly ideal place to store liquid CO2 because it is cold and already under an immense amount of pressure.
they are planting trees on the ocean?
Wait till this guy learns about algae
Can’t they introduce something that can convert the CO2 to something safer, like microbes that can convert them to O2?
If we’re storing a problem long term, maybe we can have something that slowly make the problem go away and forget that it was initially a problem.
