Stuart Licht at George Washington University apparently spoke at the American Chemical Society meeting today on a technique for extracting CO2 from the air and converting it into carbon nanofibers. Some highlights from the AAAS press release (linked below):
* Licht says, "We calculate that with a physical area less than 10 percent the size of the Sahara Desert, our process could remove enough CO2 to decrease atmospheric levels to those of the pre-industrial revolution within 10 years." * Energy costs are estimated to be about $1,000 per ton of carbon nanofibers. Carbon nanofibers currently sell for much more than that. * "Because of its efficiency, this low-energy process can be run using only a few volts of electricity, sunlight and a whole lot of carbon dioxide. At its root, the system uses electrolytic syntheses to make the nanofibers. CO2 is broken down in a high-temperature electrolytic bath of molten carbonates at 1,380 degrees F (750 degrees C)....To power the syntheses, heat and electricity are produced through a hybrid and extremely efficient concentrating solar-energy system. The system focuses the sun's rays on a photovoltaic solar cell to generate electricity and on a second system to generate heat and thermal energy, which raises the temperature of the electrolytic cell." http://www.eurekalert.org/pub_releases/2015-08/acs-ft071615.php Does anyone know more about this? It certainly sounds too good to be true. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
