Nanoscale surface observation of feldspar dissolved under supercritical CO2–water–mineral system

Masao Sorai, Takashi Ohsumi and Masamichi Ishikawa

Energy, 2005, vol. 30, issue 11, 2334-2343

Abstract: As part of our assessment program on underground CO2 storage, we studied the dissolution of feldspar in aqueous solutions of supercritical CO2 at 25, 50, 65, and 80°C with a constant CO2 pressure of 10MPa. Atomic force microscopy (AFM) was then used to observe nanoscale dissolution features on the feldspar surface. The average dissolution rates of anorthite during the initial 1 week of dissolution were estimated from surface retreat based on vertical cross-section profiles.

Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:30:y:2005:i:11:p:2334-2343

DOI: 10.1016/j.energy.2003.10.024

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