Adsorption rates are reported for H-2-tetrahydroluran (THE), H-2-THF (D2O), H-2-THF-d8, H-2-furan, H-2-cyclopentane (CP) and H-2-tetrahydrothiophene (THT) binary clathrate hydrates at temperatures of 265273 K and pressures of 4-10 MPa. Adsorption rates of H-2-furan and H-2-6.8 mol% THE binary clathrate hydrates were the fastest among these binary clathrate hydrates. The lattice constant of hydrates were determined to analyze the adsorption data with a newly proposed multiple adsorption resistance (MAR) model. The effect of the non-included additive guest molecule on hydrogen adsorption rate was important because they promoted formation of pores and grain boundaries when hydrate particles formed. Activation energies, Delta E-Da, for H-2 diffusion into clathrate hydrates calculated from the Arrhenius plots depended on the hydrate guest additive and were determined to be: 18.0 kJ/mol (6.2 mol% THF), 30.7 kJ/mol (5.6 mol% THF), and 100 kJ/mol (cyclopentane). Based on the Delta E-Da) values, H-2 diffusion pathway in hydrate particles depends on the clathrate hydrate formation process and the interactions between guest additive molecule and the host molecule. (C) 2014 Elsevier Ltd. All rights reserved,