An experimental investigation of applicability of CO2 enhanced coal bed methane recovery to low rank coal
AS Ranathunga, MSA Perera, PG Ranjith, CH Wei
FUEL | ELSEVIER SCI LTD | Published : 2017
Previous studies have shown that carbon dioxide (CO2) injection can enhance CH4 production (CO2-ECBM) compared to traditionally-used methods, mainly due to the higher adsorptive capability of CO2 in coal, which desorbs the CH4 with higher sweep efficiency. Many studies have been conducted to date on the CO2-ECBM technique for high rank coals. However, there have been very few studies on low rank coal. Therefore, this study uses Victorian brown coal samples to investigate the CO2-ECBM potential of low rank coal. A series of CO2 core flooding tests was conducted on CH4 saturated meso-scale brown coal samples for various CO2 injection conditions, phases and pressures. According to the experimen..View full abstract
Awarded by Australian Research Council
The authors acknowledge the use of facilities in the Monash Centre of Electron Microscopy (MCEM) and the funding provided by the Australian Research Council (DE130100124).