A CO2 capture solvent with exceptionally low total costs of capture
1–10 of 269 posts
Re: A CO2 capture solvent with exceptionally low total costs of capture
#2Alright HN domain experts. I’m prepared. What’s the rub?
Re: A CO2 capture solvent with exceptionally low total costs of capture
#3Alright HN domain experts. I’m prepared. What’s the rub?
It’s only practical on mixtures with high co2 gas concentrations
Re: A CO2 capture solvent with exceptionally low total costs of capture
#4Alright HN domain experts. I’m prepared. What’s the rub?
Like with every other solution, under the current political and economic systems, there's no incentive to scale it up quickly enough to make a dent in global warming and it will just live in small local prototypes and in the dreams of techno-solutionists.
Re: A CO2 capture solvent with exceptionally low total costs of capture
#5Alright HN domain experts. I’m prepared. What’s the rub?
Like with every other solution, under the current political and economic systems, there's no incentive to scale it up quickly enough to make a dent in global warming and it will just live in small local prototypes and in the dreams of techno-solutionists.
That too
Re: A CO2 capture solvent with exceptionally low total costs of capture
#6I've been looking at the use of algae with regards to sequester img CO2 from the atmosphere. This seems to have some remarkable advantages: single molecules which make mass production easier, presumably less finicky operating procedure and way more straightforward to pump into disused oil wells. From the abstract it does seem to need CO2 being supplied to it as opposed to drawing it from the atmosphere actively. I assume this could be used in exhausts of some kind?
Definite benefit is the fact that the CO2 is captured immediately as opposed to over a years long timeline, like trees.
Re: A CO2 capture solvent with exceptionally low total costs of capture
#7Alright HN domain experts. I’m prepared. What’s the rub?
Like with every other solution, under the current political and economic systems, there's no incentive to scale it up quickly enough to make a dent in global warming and it will just live in small local prototypes and in the dreams of techno-solutionists.
That's not a techno solution worth to dream about, the real techno solution is a fine grained control of weather (like https://viento.ai) and in that case the extra CO2 in atmosphere will be naturally sequestered in fields and farms in Sahara.
Re: A CO2 capture solvent with exceptionally low total costs of capture
#8For making a dent in global warming we'll need to have billions of tonnes of this "N-(2-ethoxyethyl)-3-morpholinopropan-1-amine (2-EEMPA)" stuff..
I wonder if this won't be an environmental hazard in itself. What do we do with it after it's captured its CO2? We can't just dump that stuff in the sea.
I wonder if CO2 capture does not cause more problems than it solves. Even if we magically could capture CO2 as pure carbon and let the O2 back into the air, we'd end up with enough carbon to fill all the mines we've emptied over the years. Where are we going to leave all that without making a huge environmental mess? And how do we transport all that there? And that's not even considering the energy usage and possible reagents.
I think we should really reduce our energy usage instead. Every tonne of CO2 not emitted does not have to be captured, and the effects of not producing it are positive for the environment in more ways than just global warming.
Of course we're already on a path for significant global warming, but I think we'll just have to deal with that as we go. I don't think we'll manage to do significant CO2 capture before the effects are irreversible anyway.
Re: A CO2 capture solvent with exceptionally low total costs of capture
#9Re: A CO2 capture solvent with exceptionally low total costs of capture
#10Alright HN domain experts. I’m prepared. What’s the rub?
It’s only practical on mixtures with high co2 gas concentrations
From the abstract it seems to be very applicable to combustion exhausts (coal/gas plants) and consuming 5-10% of the combustion energy to recapture the CO2.
Hard to tell what is the required CO2 concentration without the full article. Typical combustion exhaust seems to be ~10% of CO2, https://en.wikipedia.org/wiki/Flue_gas
Edit: spelling.