TY - GEN
T1 - CO2 fixation using magnesium silicate minerals Part 1
T2 - 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
AU - Fagerlund, Johan
AU - Nduagu, Experience
AU - Romaoãc, Inês
AU - Zevenhoven, Ron
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - This paper describes a staged carbonation process for magnesium silicate mineral carbonation. This carbon dioxide capture and storage (CCS) alternative involves the production of magnesium hydroxide, followed by its carbonation in a pressurised fluidised bed (PFB) reactor that is operated at temperatures and pressures so far up to 873 K, 4.5 MPa. The goal is to utilise the heat of the carbonation reaction to drive the Mg(OH)2 production step. The results show that Mg(OH)2 can be produced successfully and efficiently from different serpentinite minerals from locations worldwide (Finland, Lithuania, Australia and Portugal). From the extraction step, ammonium sulphate is recovered while iron oxides (from the mineral) are obtained as by-products. The carbonation step, while still being developed, resulted in >50 %-wt conversion in 15 minutes (773 K, 2 MPa) for > 300 urn serpentinite derived Mg(OH)2 particles.
AB - This paper describes a staged carbonation process for magnesium silicate mineral carbonation. This carbon dioxide capture and storage (CCS) alternative involves the production of magnesium hydroxide, followed by its carbonation in a pressurised fluidised bed (PFB) reactor that is operated at temperatures and pressures so far up to 873 K, 4.5 MPa. The goal is to utilise the heat of the carbonation reaction to drive the Mg(OH)2 production step. The results show that Mg(OH)2 can be produced successfully and efficiently from different serpentinite minerals from locations worldwide (Finland, Lithuania, Australia and Portugal). From the extraction step, ammonium sulphate is recovered while iron oxides (from the mineral) are obtained as by-products. The carbonation step, while still being developed, resulted in >50 %-wt conversion in 15 minutes (773 K, 2 MPa) for > 300 urn serpentinite derived Mg(OH)2 particles.
KW - carbon dioxide capture and storage
KW - Gas-solid carbonation
KW - Staged process
UR - http://www.scopus.com/inward/record.url?scp=84896097717&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84896097717
SN - 9781456303181
T3 - Proceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
SP - 67
EP - 75
BT - Power Plants and Industrial Processes
PB - Åbo Akademi University
Y2 - 14 June 2010 through 17 June 2010
ER -