CO2 adsorption and swelling of coal under constrained conditions and their stage-change relationship

• Published in: Journal of natural gas science and engineering Vol. 76; p. 103205
• Main Authors: Wang, Rui, Wang, Qizhi, Niu, Qinghe, Pan, Jienan, Wang, Haichao, Wang, Zhenzhi
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2020
• Subjects: Adsorption swelling; CO2 adsorption capacity; CO2-ECBM; Moisture; Temperature; Temperature; Moisture; CO2-ECBM; CO2 adsorption capacity; Adsorption swelling

The adsorption of CO2 into coal will cause the volumetric swelling of coal body, which is a highly concerned issue for the CO2 enhanced coalbed methane recovery (CO2-ECBM). However, the research of adsorption and swelling of coal is not all-inclusive and their relationship is ambiguous. This paper c...