An experimental investigation of trace element dissolution in carbon dioxide: Applications to the geological storage of CO2

Rempel, Kirsten; Liesbcher, A.; Heinrich, W.; Schettler, G.

doi:10.1016/j.chemgeo.2011.08.003

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Authors

Rempel, Kirsten

Liesbcher, A.

Heinrich, W.

Schettler, G.

Date

2011

Type

Journal Article

Metadata

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Citation

Rempel, Kirsten U. and Liesbcher, Axel and Heinrich, Wilhelm and Schettler, Georg. 2011. An experimental investigation of trace element dissolution in carbon dioxide: Applications to the geological storage of CO2. Chemical Geology. 289 (3-4): pp. 224-234.

Source Title

Chemical Geology

DOI

10.1016/j.chemgeo.2011.08.003

ISSN

0009-2541

School

Department of Applied Geology

URI

http://hdl.handle.net/20.500.11937/22256

Collection

Curtin Research Publications

Abstract

This paper presents the first experimental data for the fractionation of Fe, Cu and Zn between brine and carbon dioxide at pressure-temperature conditions applicable to the saline aquifers used for the geological storage of CO2, in order to evaluate the potential for trace element remobilization within the injected CO2 plume. The study was carried out at 6.5-16 MPa and 60 °C in a large-volume autoclave, which was loaded with pressurized CO2 and a 20 wt% NaCl solution having a known concentration of Fe, Cu or Zn. Paired samples of brine and CO2 were extracted from separate capillary lines and analyzed for metal concentrations.