CO2 fixation using magnesium silicate minerals part 1: Process description and performance

Johan Fagerlund; Experience Nduagu; Inês Romão; Ron Zevenhoven

doi:10.1016/j.energy.2011.08.032

CO₂ fixation using magnesium silicate minerals part 1: Process description and performance

Johan Fagerlund, Experience Nduagu, Inês Romão, Ron Zevenhoven^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

84 Citations (Scopus)

Abstract

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. 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 (up to 78% Mg extraction extent achieved so far) and efficiently from different serpentinite minerals from locations worldwide (Finland, Lithuania, Australia, 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 10 min (500°C, 20 bar) for > 300 μm serpentinite-derived Mg(OH)₂ particles. Thus the reaction rate achieved so far is much faster than what is currently being considered fast in the field of mineral carbonation.

Original language	English
Pages (from-to)	184-191
Number of pages	8
Journal	Energy
Volume	41
Issue number	1
DOIs	https://doi.org/10.1016/j.energy.2011.08.032
Publication status	Published - May 2012
MoE publication type	A1 Journal article-refereed

Funding

This paper is part of an ongoing project called Carbonates in Energy Technology (CARETECH). CARETECH is funded (2008–2011) by the Academy of Finland’s Sustainable Energy programme (SusEn). We also acknowledge KH Renlund foundation for support during the years 2007–2009. Dr. James Highfield of ICES/A*Star, Singapore, is acknowledged for valuable comments.

Keywords

Carbon dioxide capture and storage
Gas-solid carbonation
Staged process

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10.1016/j.energy.2011.08.032Licence: Unknown

Cite this

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title = "CO2 fixation using magnesium silicate minerals part 1: Process description and performance",

abstract = "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. 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 (up to 78\% Mg extraction extent achieved so far) and efficiently from different serpentinite minerals from locations worldwide (Finland, Lithuania, Australia, 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 10 min (500°C, 20 bar) for > 300 μm serpentinite-derived Mg(OH)2 particles. Thus the reaction rate achieved so far is much faster than what is currently being considered fast in the field of mineral carbonation.",

keywords = "Carbon dioxide capture and storage, Gas-solid carbonation, Staged process",

author = "Johan Fagerlund and Experience Nduagu and In{\^e}s Rom{\~a}o and Ron Zevenhoven",

note = "Funding Information: This paper is part of an ongoing project called Carbonates in Energy Technology (CARETECH). CARETECH is funded (2008–2011) by the Academy of Finland{\textquoteright}s Sustainable Energy programme (SusEn). We also acknowledge KH Renlund foundation for support during the years 2007–2009. Dr. James Highfield of ICES/A*Star, Singapore, is acknowledged for valuable comments. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

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AU - Zevenhoven, Ron

N1 - Funding Information: This paper is part of an ongoing project called Carbonates in Energy Technology (CARETECH). CARETECH is funded (2008–2011) by the Academy of Finland’s Sustainable Energy programme (SusEn). We also acknowledge KH Renlund foundation for support during the years 2007–2009. Dr. James Highfield of ICES/A*Star, Singapore, is acknowledged for valuable comments. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

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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. 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 (up to 78% Mg extraction extent achieved so far) and efficiently from different serpentinite minerals from locations worldwide (Finland, Lithuania, Australia, 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 10 min (500°C, 20 bar) for > 300 μm serpentinite-derived Mg(OH)2 particles. Thus the reaction rate achieved so far is much faster than what is currently being considered fast in the field of mineral carbonation.

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