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

Johan Fagerlund*, Experience Nduagu, Inês Romaoãc, Ron Zevenhoven

*Korresponderande författare för detta arbete

Forskningsoutput: Kapitel i bok/konferenshandlingKonferensbidragVetenskapligPeer review

10 Citeringar (Scopus)

Sammanfattning

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.

OriginalspråkEngelska
Titel på gästpublikationPower Plants and Industrial Processes
FörlagÅbo Akademi University
Sidor67-75
Antal sidor9
ISBN (tryckt)9781456303181
StatusPublicerad - 2010
MoE-publikationstypA4 Artikel i en konferenspublikation
Evenemang23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010 - Lausanne, Schweiz
Varaktighet: 14 jun 201017 jun 2010

Publikationsserier

NamnProceedings of the 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
Volym4

Konferens

Konferens23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010
Land/TerritoriumSchweiz
OrtLausanne
Period14/06/1017/06/10

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