Methane Adsorption and Transport in Tortuous Slit-like Nanochannels: A Molecular Simulation Study.

ABSTRACT: Tortuosity is a crucial characteristic of porous materials, such as the shale matrix where shale gas is stored. The presence of tortuous nanochannels significantly affects the adsorption and transport of nanoflows. In this research, we use molecular dynamics simulation (MD) to study the adsorption and transport properties of shale gas (methane) in a curved slit-like nanochannel constructed from bent graphene sheets. Our findings reveal that the curvature of the tortuous channel influences methane adsorption: convex surfaces exhibit stronger adsorption, while concave surfaces exhibit weaker adsorption; the discrepancy is amplified by the nanoflow. Additionally, nanoflow velocity is heterogeneously distributed within the curved channel, with higher tangential flow velocities observed near th

SUBMITTER: Wang J 

PROVIDER: S-EPMC11500140 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature