I strongly doubt that this is the solution to capture and store 35 billion tons of CO2 each year. Doing it the way nature has always done it (by reaction with basic silicates, a process called weathering), but speeding up the process by providing a larger reactant surface seems a more straightforward way to me, Olaf Schuiling
From: [email protected] [mailto:[email protected]] On Behalf Of Andrew Lockley Sent: dinsdag 10 maart 2015 19:56 To: geoengineering Subject: [geo] Alkali Metal Nitrate-Promoted High-Capacity MgO Adsorbents for Regenerable CO2 Capture at Moderate Temperatures - Chemistry of Materials (ACS Publications) http://pubs.acs.org/doi/abs/10.1021/cm503295g Alkali Metal Nitrate-Promoted High-Capacity MgO Adsorbents for Regenerable CO2 Capture at Moderate Temperatures Takuya Harada †, Fritz Simeon ‡, Esam Z. Hamad ‡, and T. Alan Hatton *† Chem. Mater., Article ASAP DOI: 10.1021/cm503295g Publication Date (Web): March 3, 2015 [email protected]<mailto:[email protected]>. Regenerable high capacity CO2 sorbents are desirable for the establishment of widespread carbon capture and storage (CCS) systems to reduce global CO2 emissions. We report on the marked effects of molten alkali metal nitrates on CO2 uptake by MgO particles and their impact on the development of highly regenerable CO2 adsorbents with high capacity (>10.2 mmol g–1) at moderate temperatures (∼300 °C) under ambient pressure. The molten alkali metal nitrates are shown to prevent the formation of a rigid, CO2-impermeable, unidentate carbonate layer on the surfaces of MgO particles and promote the rapid generation of carbonate ions to allow the high rate of CO2 uptake. -- 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]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout. -- 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.
