[cfgghsj]

I found this article written by the CEO in a journal outlining some technical details. https://www.cell.com/joule/pdf/S2542-4351(20)30002-7.pdf

His breakthrough technology is supposed to be the carbon nanotube membrane as explained here. https://news.ycombinator.com/item?id=19842240

But, the two papers he cited in the Joule article don't go as far as actually separating water and ethanol. It's questionable whether this is possible or has been done successfully yet. https://iopscience.iop.org/article/10.1088/1674-0068/25/04/4... https://www.science.org/doi/10.1126/sciadv.1700938

[alexose]

I think it's fair to assume that this technology is feasible at this point. McGinnis' other company, Mattershift, specializes in these kinds of membranes. IIRC they started in the desalination world, but have since found other applications.

https://www.greencarcongress.com/2018/03/20180310-mattershif...

[lowercase1]

Yeah the tech seems feasible but I'm skeptical of controlling capital costs when you need carbon nanotubes membranes as a core piece.

Air capture is also quite expensive and I'm not sure how much the "only need small concentrations of CO2" trick does.