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carbonation
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Study on Factor Involved in Multi-step Two Phase CO2 Sequestration Process
, Ph.D. Dissertation Sharif University of Technology ; Shaygan Salek, Jalaloddin (Supervisor) ; Kariminia, Hamid Reza (Supervisor)
Abstract
The increase in CO2 concentration and its effect on ecosystem and global warming make carbon sequestration inevitable for now and future. Ex-situ carbonation of mineral ores is one of the studied sequestration methods. This method is permanent and safe in comparison with others. This process is carried out in four steps and two phases in this dissertation. At the first stage magnesium was extracted from its mineral silicate ore (Mixture of serpentine and olivine) by hydrochloric acid (HCl) and was dissolved in liquid phase as ion. After that the resultant leachate of extraction step was purified from unwanted ions extracted from minerals in two steps by precipitation formed by increasing pH....