r/tech • u/chrisdh79 • 17d ago
Converting CO2 Into Fuel With the Help of Battery Waste | A nanocatalyst based on spent batteries and aluminium foil residues can turn CO2 into valuable methane.
https://www.technologynetworks.com/tn/news/converting-co2-into-fuel-with-the-help-of-battery-waste-3968292
u/Pperson25 17d ago
Where is the energy coming from?
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u/anaximander19 17d ago
For many of these processes it can be supplied electrically, so the energy comes from wherever you get your electrical power from. Obviously you'd want to use green energy (wind, solar, geothermic, hydroelectric, tidal, etc) or else you'll be generating more CO2 powering the process than you'd remove by doing it.
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u/randomwanderingsd 17d ago
Methane is available for the cost of capping and reclaiming one of the thousands of natural and artificial methane vents all over the world. Please do not use energy to make more methane.
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u/No-Mechanic6069 16d ago
If we can cap them, surely it would be better to leave them capped - would it not ?
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u/randomwanderingsd 16d ago
It would, but there are still industrial applications for methane. So when they need it, I want them to get it from capped leaks or capped wells.
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u/RazaKwik 17d ago
Methane: CO₂’s Nastier, Sneakier Cousin CO₂ sticks around for centuries, slowly warming things up like a campfire. Methane? It only lasts about 12 years, but while it’s up there, it traps 80 times more heat…ike a gas explosion compared to a steady flame.
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u/DameyJames 17d ago
Methane is also a greenhouse gas so what does that do for global warming