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SUMMARY:Prospects for economic CCS using mineral carbonation - Michael Pri
 estnall\, Cambridge Carbon Capture Ltd
DTSTART:20120308T193000Z
DTEND:20120308T210000Z
UID:TALK34740@talks.cam.ac.uk
CONTACT:Dr Geoff Hale
DESCRIPTION:Geological sequestration of captured CO2 is an energy intensiv
 e process and one that will also require large-scale integrated infrastruc
 ture.  Mineral carbonation is the leading alternative to geo-CCS\; it is a
 lso expensive and energy intensive\, but can be applied stand-alone\, and 
 potentially profitably\, at small scale.  The process mirrors the spontane
 ous steps of the natural carbon-silicate cycle in which atmospheric CO2 di
 ssolves in water and reacts with eroded magnesium and calcium silicate roc
 ks and solutions to deposit magnesium and calcium carbonates.  The key cha
 llenge to making mineral carbonation an economically feasible industrial p
 rocess\, at large-scale\, is primarily the energy and/or chemicals input r
 equired to speed-up and make Mg/Ca available for carbonation - some of the
  approaches to address this will be described.  At small-scales there are 
 increasing business opportunities to drive economic feasibility through th
 e value of materials and byproducts\, and\, as will be described\, through
 \, a novel combination of mineral carbonation with alkaline fuel cells.
LOCATION:Department of Materials Science and Metallurgy\, New Museums Site
 \, Pembroke Street\, Cambridge CB2 3QZ
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