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> The ease of releasing CO2 is the key advantage of the new compound. I have no idea why the journalist that wrote this article choose to highlight the carbon
by marcosdumay 10mo ago
> The ease of releasing CO2 is the key advantage of the new compound.
I have no idea why the journalist that wrote this article choose to highlight the carbon density of the sub-header. It's almost completely irrelevant for carbon capture plants.
Another clear benefit is that it's a liquid.
Today people mostly use the substances that you called non-reversible in research plants (AFAIK, all plants are research right now). They are perfectly reversible, but that uses a lot of energy.
- nine_k 10mo ago> perfectly reversible, but that uses a lot of energy Looks like a perfect match to a solar plant, which provides basically free energy periodically. All you need is a large enough cistern to hold the liquid during night time.
- marcosdumay 10mo agoYes, it's a great match to solar plants. But you don't need to store the capture medium. You use a bit more energy to make they work faster while the Sun is shining, and stop everything when it's gone. The largest bottleneck is what you do to get rid of the CO2.
- eisfresser 10mo agoWe use the CO2 to synthesize methanol with the H2 we electrolyze using surplus solar energy. The methanol we burn in winter for heat. Yes, that releases the CO2 again. The goal here is not to save the planet. It is to bring solar energy to winter. My house produces many times the electricity that it needs per year, but most of it is wasted in summer. Efficient conversion is not a factor. If I can get 20% of the energy input back as heat in winter, it is worth it: that is oil or wood I don't have to burn for heat.
- nine_k 10mo agoI mean, you have to recycle the CO2-carrying liquid. You have to store some of it that has CO2 captured but not yet recycled because the Sun is down.