Solar-powered device captures carbon dioxide from air to make sustainable fuel
-
T [email protected] shared this topic
-
This reminded me of that video when the covid lockdown caused the air to be so much cleaner that a mountain range could be seen from ~200km away:
-
https://en.wikipedia.org/wiki/Acetogen is a more promising technology in my opinion. It also does not require high pressures or temperatures, has been proven to scale to tons of co2, and uses much less energy than this paper.
This paper has the advantage of not needing a high concentration of co2 in the air. But on the other hand, such sources are readily available as a by-product of industry.
-
you can see it's peak around 350 km away
-
I thought ages ago about a passive technology to use solar power to capture carbon dioxide and turn it into solid form.
I realised that I was trying to invent trees.
-
The problem is trees are such a blight on the landscape. Nobody wants trees popping up all over the place. Not in my backyard!
Imagine the dystopian future when huge areas of land are set aside and blanketed with trees in such density that you can't even see through them.
-
Cool.
Looking forward to hearing about the scaling up.
-
This article has waaayyy too much "if this actually worked it could be used for...." and "instead of other methods that don't work...". But waaayy to little about the actual validity of the process.
This is a general trend every fucking time an article claims to have something on CO2 or batteries or global warming. IMO this is probably because the actual idea is bullshit.
Sorry but my ADD prevented me from reading all that non content crap to see if there were actually anything real to read.What if, instead of pumping the carbon dioxide underground, we made something useful from it
What if instead of having your head up your ass, you at this point had already written at least a teaser about how this is any better?
99% sure by now, that this is a fucking waste of time.Please someone who bothered reading this, inform me if there's any actual content beneath that load of obvious bullshit.
-
It's university press department stuff. That's always shitty pop-science communication.
Then again, it works, as people post that to fora, instead of the actual research. And popularity, not quality, of work brings grants.
-
I skimmed most of it, but I'm still not sure what the fuel is. CO2 isn't particularly useful unless you change it to something else. What's that something else?
-
We have this literally every winter in my area, but instead of 200km, it's more like 20. We get what's called an inversion where particulates get trapped in our valley, and they don't leave until the weather changes and all that crap can escape. When it gets rally bad, I can't see the mountains on the other side of the valley at all, whereas when it's clear, I can make out specific features on the mountain.
During COVID, we had far fewer bad air days, because we weren't producing nearly as many particulates.
-
Syngas, a mixture of CO and H2
-
I have several of these around me.
I call them trees, and plants.
They use solar power to convert carbon, water, and minerals, into a solid form, which I call wood. -
Stopping pollution at the source is much more thermodynamically efficient.
-
I first heard about this kind of thing a couple of decades ago. Pretty sure biofuel is more efficient though.
-
Ha! Next you'll tell us these magic machines are nearly free and self-replicating!
-
lol. They are. It's truly amazing!
-
My ex, visiting Canada from Japan, once complained that there are too many trees.
-
“Sustainable fuel”
Put that shit deep under ground, not back in the air!!
-
Interesting. I wonder how they catch the CO2 out of the air.
Ok, after reading (parts of) the paper:
- they use some amines on porous Silicate to catch the CO2 out of the air
- the whole process in the paper is actually a 2-step process, the first step being CO2 capture
- the second step describes how to convert CO2 into CO+H2 or sth
