Low Subcritical CO₂ Adsorption-Desorption Behavior of Intact Bituminous Coal Cores Extracted from a Shallow Coal Seam.

ABSTRACT: This study focuses on improving fundamental understanding of low, subcritical CO₂ adsorption-desorption behavior of bituminous coals with the aim to evaluate the utility of shallow-depth coal seams for safe and effective CO₂ storage. Comprehensive data and a detailed description of coal-CO₂ interactions, e.g., adsorption, desorption, and hysteresis behavior of intact bituminous coals at CO₂ pressures <0.5 MPa, are limited. Manometric sorption experiments were performed on coal cores (50 mm dia. and 30- or 60-mm length) obtained from a 30 m deep coal seam located at the Upper Silesian Basin in Poland. Experimental results revealed that the adsorption capacities were correlated to void volume and equilibrium time under low-pressure injection (0.5 M

SUBMITTER: Masum SA 

PROVIDER: S-EPMC9893810 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature