Experimental study on the interactions of supercritical CO2 and H2O with anthracite. Issue 2 (17th January 2018)

• Record Type: Journal Article
• Authors: Zhang, Kaizhong; Cheng, Yuanping; Wang, Liang
• Is Part Of: Energy sources. Volume 40:Issue 2(2018)
• Page Start: 214
• Page End: 219
• Publication Date: 2018-01-17
• Subjects: Anthracite -- supercritical CO2 -- water -- pore structure -- adsorption; Natural resources -- Periodicals; Energy consumption -- Periodicals; Energy consumption -- Climatic factors -- Periodicals; Energy conversion -- Periodicals; Energy conversion -- Environment aspects -- Periodicals; Power (Mechanics) -- Periodicals; 333.7905
• DOI: 10.1080/15567036.2017.1410595
• Languages: English
• ISSNs: 1556-7036

Abstract

ABSTRACT: To better understand the mechanism of interactions of supercritical CO2 (SCCO2 ) and H2 O, untreated, SCCO2 treated and SCCO2 -H2 O treated anthracites were adopted to analyze changes in pore structure, adsorption capacity. Observations from experimental data reveal that mineral and other substances in the fractures and matrix of coal body are dissolved and mobilized by the carbonic acid formed from the mixture of SCCO2 and H2 O, which may contribute to smaller pore development and enhance the adsorption capacity. These findings may provide new insights into effective and safe storage of CO2 in coal reservoir.