Ex situ aqueous mineral carbonation.
The U.S. Department of Energy's National Energy Technology Laboratory (NETL) located in Albany, OR (formerly the Albany Research Center) has studied ex situ mineral carbonation as a potential option for carbon dioxide sequestration. Studies focused on the reaction of Ca-, Fe-, and Mg-silicate minerals with gaseous CO2 to form geologically stable, naturally occurring solid carbonate minerals. The research included resource evaluation, kinetic studies, process development, and economic evaluation. An initial cost estimate of approximately $69/ton of CO2 sequestered was improved with process improvements to $54/ton. The scale of ex situ mineral carbonation operations, requiring 55 000 tons of mineral to carbonate, the daily CO2 emissions from a 1-GW, coal-fired power plant, may make such operations impractical.
Gerdemann
Stephen J
SJ
National Energy Technology Laboratory, 1450 Queen Avenue SW, Albany, Oregon 97321, USA. Steve.Gerdemann@NETL.DOE.GOV
O'Connor
William K
WK
Dahlin
David C
DC
Penner
Larry R
LR
Rush
Hank
H
D000393:Air Pollutants / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry*; D002254:Carbonates / Q000138:chemical synthesis*; D052918:Environmental Restoration and Remediation / Q000191:economics / Q000295:instrumentation / Q000379:methods*; D005069:Evaluation Studies as Topic; D007700:Kinetics; D008903:Minerals / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry*
D000393:Air Pollutants; D002254:Carbonates; D008903:Minerals; D017640:Silicates; D002245:Carbon Dioxide