Pore connectivity influences mass transport in natural rocks: Pore structure, gas diffusion and batch sorption studies

Xiaoqing Yuan,Qinhong Hu, Xiang Lin,Chen Zhao,Qiming Wang,Yukio Tachi,Yuta Fukatsu,Shoichiro Hamamoto,Marja Siitari-Kauppi,Xiaodong Li

Journal of Hydrology（2023）

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摘要

•Effective porosities for six natural rocks with six particle sizes were measured.•A solid quartz method was proposed to derive intraparticle gas diffusivity.•Effects of clay minerals and particle sizes on the ionic sorption were assessed.•Chemical sorption of granular rock samples was linked to its pore connectivity.

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关键词

Rock lithologies,Pore connectivity,Heterogeneity,Sample size-dependent effective porosity,Intraparticle diffusivity,Batch sorption

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