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Re:Launch HN: Prometheus (YC W19) – Remove CO2 from Air and ... by radres on Tuesday May 07, 2019 @08:31AM (#19848772)
I still don't see any theoretical proof that your carbon nanotubes are going to do this job more efficiently.

If they do, will they need any replacement? Are they reusable? How low the reuse cost can be?

Re:Launch HN: Prometheus (YC W19) – Remove CO2 from Air and ... by rmcginnis on Tuesday May 07, 2019 @08:36AM (#19848793)
There should be a peer review article with this data by the end of the summer. Mattershift, the company that makes the membranes, got a DOE RAPID grant to get bench and pilot data for this: https://www.aiche.org/rapid/news/08-27-2018/rapid-manufactur...

The membranes are robust and should have a long life in this application.