Published August 2005
| Version v1
Journal article
Nanoscale surface observation of feldspar dissolved under supercritical CO2-water-mineral system
- 1. CO-2 Sequestration Research Group, Research Institute of Innovative Technology for the Earth, 9-2 Kizugawadai, Kizu-cho, Soraku-gun, Kyoto 619-0292 (Japan) and Frontier Science Institute, Mitsubishi Research Institute, Inc., 2-3-6 Otemachi, Chiyoda-ku, Tokyo 100-8141 (Japan)
- 2. CO-2 Sequestration Research Group, Research Institute of Innovative Technology for the Earth, 9-2 Kizugawadai, Kizu-cho, Soraku-gun, Kyoto 619-0292 (Japan)
- 3. Frontier Science Institute, Mitsubishi Research Institute, Inc., 2-3-6 Otemachi, Chiyoda-ku, Tokyo 100-8141 (Japan)
Description
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 deg. C with a constant CO2 pressure of 10 MPa. 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
Additional details
Identifiers
- DOI
- 10.1016/j.energy.2003.10.024;
- PII
- S0360-5442(04)00389-5;
Publishing Information
- Journal Title
- Energy (Oxford)
- Journal Volume
- 30
- Journal Issue
- 11-12
- Journal Page Range
- p. 2334-2343
- ISSN
- 0360-5442
- CODEN
- ENEYDS
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36069821
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Descriptors DEI
- ANORTHITE; AQUEOUS SOLUTIONS; ATOMIC FORCE MICROSCOPY; CARBON DIOXIDE; DISSOLUTION; ENVIRONMENTAL POLICY; GREENHOUSE GASES; NANOSTRUCTURES; PRESSURE RANGE MEGA PA 01-10; SURFACE PROPERTIES; TEMPERATURE RANGE 0273-0400 K; TIME DEPENDENCE; UNDERGROUND STORAGE; WATER
- Descriptors DEC
- CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DISPERSIONS; FELDSPARS; GOVERNMENT POLICIES; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; MICROSCOPY; MINERALS; MIXTURES; OXIDES; OXYGEN COMPOUNDS; PRESSURE RANGE; PRESSURE RANGE MEGA PA; SILICATE MINERALS; SOLUTIONS; STORAGE; TEMPERATURE RANGE
Optional Information
- Copyright
- Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.