Four transient experimental methods for the study of surface diffusion of gases and liquids in
porous media are critically reviewed. Each method is based on the measurement of a …

A model for gas transfer in nanopores is the basis for accurate numerical simulation, which
has important implications for economic development of shale-gas reservoirs (SGRs). The …

The gas in the coalbed methane (CBM) reservoirs is mainly in the adsorbed state, and the
influence of surface jump of adsorbed gas on CBM migration and gas well productivity …

We present an apparent diffusion coefficient derived from a diffusion-based mass
conservation equation for single-component gas transport in nanoporous media. Multiple …

Adsorbed-phase surface diffusion has been recognized as an important controlling factor on
gas apparent permeability in micropores and smaller mesopores. However, for the …

摘要页岩气纳米孔气体传输是页岩气数值模拟基础, 对页岩气的高效经济开发具有重要意义.
页岩气自生自储, 富含纳米孔, 这些特殊性造成页岩气纳米孔气体传输机理与模拟显著区别于 …

In adsorption studies, equilibrium adsorption properties are relatively easy to determine
compared to kinetic parameters. Especially, it is not possible to study the spatial distribution …

A new frequency response method based on a sinusoidal modulation of pressure is
developed to measure gas adsorption equilibria and kinetics simultaneously. The transfer …

This paper presents the comparison of surface diffusivities of hydrocarbons in activated
carbon. The surface diffusivities are obtained from the analysis of kinetic data collected …

A frequency response method using concentration variation is developed theoretically and
experimentally and applied to investigate mixture diffusion in nanoporous adsorbents. The …