Influence of Depth on CO 2 /CH 4 Sorption Ratio in Deep Coal Seams

Barbara Dutka ()
Additional contact information
Barbara Dutka: Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Krakow, Poland

Sustainability, 2023, vol. 16, issue 1, 1-16

Abstract: The present work aims to analyse the influence of present-day burial depths of coal seams on the sorption properties towards CH 4 and CO 2 , respectively. For medium-rank coals located in the southwestern area of the Upper Silesian Coal Basin (USCB), the gravimetric sorption measurements were carried out with pure gases at a temperature of 30 °C. The variability of CO 2 /CH 4 exchange sorption and diffusivity ratios was determined. It was revealed that in coal seams located at a depth above 700 m, for which the sorption exchange ratio was the greatest, the process of CO 2 injection for permanent storage was more beneficial. In the coal seams lying deeper than 700 m with a lower CO 2 /CH 4 sorption ratio, the CH 4 displacement induced by the injection of CO 2 (CO 2 -ECBM recovery) became more favourable.

Keywords: coal; depth; sorption capacity; diffusion coefficient; CO 2 storage; ECBM (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/16/1/43/pdf (application/pdf)
https://www.mdpi.com/2071-1050/16/1/43/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:16:y:2023:i:1:p:43-:d:1303609

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().