Carbon Dioxide Mineral Carbonation Through pH-swing Process: A Review

Amin Azdarpour, Mohammad Asadullah, Radzuan Junin, Muhammad Manan, Hossein Hamidi, Ahmad Rafizan Mohamad Daud

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


The promotion of carbon dioxide (CO2) reduction methods is due to the fact that the CO2 concentration has been increasing rapidly in 21st century. In order to prevent further damage of the environment caused by greenhouse gases, CO2 concentration should be stabilized by increasing CO2 fixation, which can reduce CO2 emission into the atmosphere. Mineral carbon sequestration or mineral carbonation is the process of utilizing minerals, mostly rich in calcium and magnesium (Ca/Mg) as the feedstock in reaction with CO2 to produce stable solid carbonates. Mineral carbonation through indirect pH swing process is a very effective method for producing calcium and magnesium carbonates. The Ca/Mg ions are extracted out of feedstock using suitable solvents at low pH condition and then in the second step the leached Ca/Mg ions are carbonated at elevated pH condition. In this paper the state-of-the-art of the carbonation involving pH swing method is updated.
Original languageEnglish
Pages (from-to)2783-2786
Number of pages4
JournalEnergy Procedia
Early online date12 Jan 2014
Publication statusPublished - 2014
Event6th International Conference on Applied Energy - National Taiwan University of Science and Technology, Taipei City, Taiwan, Province of China
Duration: 30 May 20142 Jun 2014

Bibliographical note

This research is financially supported by the Research Management Institute, Universiti Teknologi Mara under the project No. 600-RMI/DANA5/3/RIF(383/2012) and 600-RMI/DANA5/3/RIF(549/2012), and Ministry of Higher Education, Malaysia under the project No. 600-RMI/FRGS/5/3(98/2013) and 600- RMI/FRGS 5/3(90/2013).


  • Carbon capture and storage
  • Mineral carbonation
  • Greenhouse gases
  • Carbon dioxide
  • pH swing
  • Carbonation efficiency


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