Allow me to nominate an alkaline silicate supply candidate of Biblical proportions: the molten carbonatite lava of The Mountain of God , Ol Doinyo Lengai in the Tanzanian stretch of the East African Rift- sodium and potassium carbonates ready to electrolyze .
On Saturday, March 7, 2015 at 4:17:38 AM UTC-5, andrewjlockley wrote: > > http://link.springer.com/article/10.1007%2Fs11431-014-5727-6 > > China Technological Sciences > December 2014, Volume 57, Issue 12, pp 2335-2343 > Date: 11 Dec 2014 > > Generation of electricity from CO2 mineralization: Principle and > realization > > HePing Xie et al > > Abstract > Current CO2 reduction and utilization technologies suffer from high energy > consuming. Thus, an energy favourable route is in urgent demanding. CO2 > mineralization is theoretically an energy releasing process for CO2 > reduction and utilization, but an approach to recovery this energy has so > far remained elusive. For the first time, here we proposed the principle of > harvesting electrical energy directly from CO2 mineralization, and realized > an energy output strategy for CO2 utilization and reduction via a > CO2-mineralization fuel cell (CMFC) system. In this system CO2 and > industrial alkaline wastes were used as feedstock, and industrial valuable > NaHCO3 was produced concomitantly during the electricity generation. The > highest power density of this system reached 5.5 W/m2, higher than many > microbial fuel cells. The maximum open circuit voltage reached 0.452 V. > Moreover, this system was demonstrated viable to low concentration CO2 > (10%) and other carbonation process. Thus, the existing of an > energy-generating and environmentally friendly strategy to utilize CO2 as a > supplement to the current scenario of CO2 emission control has been > demonstrated. > -- 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.
