Abstract
Sorption isotherms, which describe the coal's gas storage capacity, are important for estimating the carbon sequestration potential of coal seams. This study investigated the inter-laboratory reproducibility of carbon dioxide isotherm measurements on moisture-equilibrated Argonne premium coal samples (Pocahontas No. 3, Illinois No. 6, and Beulah Zap). Six independent laboratories provided isotherm data on the three moisture-equilibrated coal samples at 55 °C and pressures up to 15 MPa. Agreement among the laboratories was good up to 8 MPa. At the higher pressures, the data among the laboratories diverged significantly for two of the laboratories and coincided reasonably well for four of the laboratories.
Original language | English |
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Pages (from-to) | 153-164 |
Number of pages | 12 |
Journal | International Journal of Coal Geology |
Volume | 72 |
Issue number | 3-4 |
DOIs | |
Publication status | Published - 22 Nov 2007 |
Keywords
- Argonne premium coal
- Carbon sequestration
- CO isotherm
- CO sorption
- CO storage capacity
ASJC Scopus subject areas
- Economic Geology
- Geology
- Stratigraphy
- Fuel Technology