Molecular dynamics trajectories and molecular-trapping data for CH₄ and H₂ in type-I kerogen at 300 K

Research dataset accompanying the study of anomalous molecular transport and trapping in dynamically fluctuating type-I kerogen. The archive contains full-length molecular-dynamics trajectories of methane (CH₄) and hydrogen (H₂) at 300 K, together with the intermediate and derived data required to reproduce the trajectory-analysis workflow. These data include extracted kerogen structural snapshots, binarized pore-space representations, reference pore-network models in Statoil format, structural pore and throat statistics, and molecular trapping classifications produced by the analyzed trajectory classifiers. Synthetic benchmark data and derived trapping statistics are included to support quantitative validation and reproducibility. The dataset enables investigation of confined diffusion, pore-to-pore transitions, cyclic trapping, and anomalous transport in a dynamically evolving nanoporous matrix.