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A comment on What if carbon removal becomes the new Big Oil?. Parent comment

Re:What if carbon removal becomes the new Big Oil? by fsloth on Sunday July 26, 2020 @08:07AM (#23956488)
As near future sci-fi options go from 100ft up I don't see anything too problematic with hydrogen economy. Except for transport infrastructure.

Or, we remain with carbon based fuels, except they are synthesized from atmospheric carbon in regions with plenty of solar energy.

These approaches surely have challenges, but I would like to know what are the biggest ones?

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Re:What if carbon removal becomes the new Big Oil? by Zigurd on Sunday July 26, 2020 @08:17AM (#23956538)
Ammonia is more practical than hydrogen. Just not as sexy. Should be rebranded as the "hydrogen-nitrogen economy."
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Re:What if carbon removal becomes the new Big Oil? by petre on Sunday July 26, 2020 @09:04AM (#23956772)
Ammonia has issues like being toxic and higlhy volatile.

I think DME has some potential as an alternative fuel because it can be produced through CO2-to-DME hydrogenation or by using syngas/manure and burned in cleaner diesels (no particulate emissions).

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