Advances in Earth Science ›› 2010, Vol. 25 ›› Issue (9): 941-949. doi: 10.11867/j.issn.1001-8166.2010.09.0941

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Research Progress of Ability of Mineral Trapping of CO 2

Dong Linsen, Liu Li, Qu Xiyu, Liu Na, Guo Xinxin   

  1. College of Earth Sciences Jilin University,Changchun 130061,China
  • Received:2010-02-22 Revised:2010-04-27 Online:2010-09-10 Published:2010-09-10

Dong Linsen, Liu Li, Qu Xiyu, Liu Na, Guo Xinxin. Research Progress of Ability of Mineral Trapping of CO 2[J]. Advances in Earth Science, 2010, 25(9): 941-949.

A survey of the global carbon reservoirs suggests that the most stable, long-term storage mechanism for atmospheric CO2 is the formation of carbonate minerals such as calcite, dolomite, magnesite and dawsonite. The suitable rocks for mineral trapping are mainly  sandstones, pyroclastic rocks and volcanic rocks (basalt). Based on the two kinds of diagenetic reactions during  CO2-H2O-rock interaction processes, the content and release ability for metal element, the types of generated minerals and the amount of  CO2 capured among these three kinds of rocks were analyzed while  the differences on  CO2 capturing ablitily for these three kinds of rocks were  compared. Basalt contains abundant metal ions, but  restricts diagenetic reaction  due to pore space limitation.  As a result,  the injected  CO2 has the risk of a fugitive. Sandstones are widely distributed and there is sufficient porosity conducive to fluid injection, but metal ions content is relatively low, and  the time required for  CO2 capture minerals are relatively long. Pyroclastic rocks are a combination of the advantages of the two rock types and is an ideal rock type for mineral trapping of  CO2.

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