Carbonation of magnesium silicate mineral using a pressurised gas/solid process

Johan Fagerlund, Sebastian Teir, Experience Nduagu, Ron Zevenhoven (Corresponding Author)

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

Abstract

Carbon dioxide mineral sequestration is not as widely advocated as CO2 sequestration by other means such as underground storage alternatives, yet it possesses properties (capacity, permanency, energy economy) that can not be matched by other options. In this paper, our findings and results since GHGT-8 as well as current activities and near-future plans regarding CO2 mineral carbonation are presented. The focus lies on the use of fluidised bed (FB) reactors for the carbonation of magnesium silicates via magnesium oxide or magnesium hydroxide intermediates, at temperatures and pressures up to 600°C, 100 bar (allowing for both sub- and supercritical conditions for CO2), supported by earlier experiments using pressurised thermogravimetric analysis (PTGA). In addition, as the production of reactive magnesium from silicate mineral is not straightforward, it receives special attention, and first results of magnesium hydroxide production from serpentine using different methods are presented.
Original languageEnglish
Pages (from-to)4907-4914
JournalEnergy Procedia
Volume1
Issue number1
DOIs
Publication statusPublished - 2009
MoE publication typeA4 Article in a conference publication
Event9th International Conference on Greenhouse Gas Control Technologies, GHGT-9 - Washington, DC, United States
Duration: 16 Nov 200820 Nov 2008

Keywords

  • Carbon dioxide storage
  • mineral carbonation
  • gas/solid carbonation
  • Mg(OH)2
  • serpentinite

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