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Gas diffusion plays a key role in CO2-enhanced recovery of coal bed methane (ECBM), where more than one types of gases coexist and multicomponent gas diffusion occurs. Such process is now usually described by non-coupled two-component gas diffusion equations which exclude the interactions between gases. Self-diffusion and mutual diffusion of CO2–CH4 mixture are investigated through molecular simulation...
Injections of carbon dioxide (CO 2 ) into unmineable coalbeds can both enhance coalbed methane recovery (ECBM), a high-efficiency energy, and realize underground storage of CO 2 . In these processes, the diffusion and sorption of methane (CH 4 ) and carbon dioxide are key dominant processes. In this study, the diffusion and sorption behavior of CH 4 and CO 2 ...
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