Solar-powered device captures carbon dioxide from air to make sustainable fuel
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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.
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Syngas, a mixture of CO and H2
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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.
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I first heard about this kind of thing a couple of decades ago. Pretty sure biofuel is more efficient though.
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Ha! Next you'll tell us these magic machines are nearly free and self-replicating!
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lol. They are. It's truly amazing!
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My ex, visiting Canada from Japan, once complained that there are too many trees.
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“Sustainable fuel”
Put that shit deep under ground, not back in the air!!
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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
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i find the technology itself more interesting than the scaling-up, because we can't do anything about the scaling up (at least i don't have billions of dollars that it would cost), but we can analyze the process qualitatively from home, that's more exciting.
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i think acetogens are biological entities, though?
wasn't there some rule about industrial processes being 10x to 100x more efficient than biological beings, in general?
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there's no such rule
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Lol, how is this different then hydrogen for example? Its renewable if just carbon dioxide is consumed during generation
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Hydrogen fuel isn’t really renewable, even if the PR agents of companies creating it tell so.
Edit: at fact check, I found this, maybe there is a way after aTo your comparison: Hydrogen only releases water if burned.
And getting CO2 out of air is very resource intensive and we need to pull a lot CO2 out, if the air to get back to “normal” levels. We can not afford to put any CO2 back into the atmosphere, after the hard work getting it out.
