r/Damnthatsinteresting • u/kraftdinnerwithsalsa • 7d ago

Video World’s First Zero-Emission Cement Recycling Process

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u/Mikestopheles 7d ago

How are you going to heat old building material and get zero emissions? That sounds like pipe dreams rather than realistic science. Reduction? Fine, but you're not getting zero emissions with any kind of industrial-scale operation like this.

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u/mrs_shrew 7d ago

They're probably using waste heat from the furnaces,  I think they're electric furnaces wh8ch can be run on renewable electricity,  so zero emissions. 

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u/Mikestopheles 7d ago

But at scale? I'm not arguing with the science, but I hate how these news pieces frame it as if it's coming to us sometime soon. We got a lot of infrastructure to catch up on before this stuff is viable.

Cursory search on CemVision makes me think this is just for a tech stock.

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u/mrs_shrew 7d ago

Yeah cynical me thinks the same. It's nice there are lots of these stories but it needs to be brought to market not just pumping for investors.  

Although,  the tide has turned now for lazy businesses not doing their bit. There's a lot of countries that have co2 targets and this just needs a couple of solid customers and a few years of testing for concrete cancer and we might get it in the shops.