http://journals.ametsoc.org/doi/abs/10.1175/JAMC-D-12-0110.1?af=R&;
Poster's note: Seems a dangerously unstable way to store CO2. Abstract A scientific plan is presented that proposes the construction of CO2 deposition plants in the Antarctic for removing CO2 gas from the Earth's atmosphere. The Antarctic continent offers the best environment on Earth for CO2 deposition at 1 bar of pressure, and temperatures closest to that required for terrestrial air CO2 snow deposition, 133°K. This plan consists of several components, including: (a) air chemistry and CO2 snow deposition, (b) the deposition plant and a closed-loop liquid nitrogen refrigeration cycle, (c) the mass storage landfill, (d) power plant requirements, (e) prevention of dry ice sublimation and (f) disposal (or use) of thermal waste. Calculations demonstrate that this project is worthy of consideration, whereby 446 deposition plants supported by 16 1200-MW wind farms can remove 1 B tons (1012 kg) of CO2 annually (a reduction of 0.5 ppmv), which can be stored in an equivalent “landfill” volume of 2 km x 2 km x 160 m (insulated to prevent dry ice sublimation). The individual deposition plant, with a 100m x 100m x 100m refrigeration chamber, would produce approximately 0.4m of CO2 snow per day. The solid CO2 would be excavated into a 380m x 380m x 10m insulated landfill, that would allow one year of storage amounting to 0.00224B tons of carbon. Demonstrated success of a prototype system in the Antarctic would be followed by a complete installation of all 446 plants for CO2 snow deposition and storage (amounting to 1B tons annually), with wind farms positioned in favorable coastal regions with katabatic wind currents. 1 Correspondence information: Ernest M. Agee, Department of Earth and Atmospheric Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907-2051; Email: [email protected] Journal of Applied Meteorology and Climatology 2012 ; e-View doi: http://dx.doi.org/10.1175/JAMC-D-12-0110.1 CO2 Snow Deposition in Antarctica to Curtail Anthropogenic Global Warming Ernest Agee,1 Andrea Orton and John Rogers Department of Earth & Atmospheric Sciences, Purdue University, West Lafayette, Indiana -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
