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