Adsorption Accumulation of Natural Methane Gas

Using the method of thermochemical activation of wood-processing waste in H₃PO₄ at 1173 K, a microporous carbon adsorbent EC-103 (1) is obtained with a specific micropore volume of W₀ = 0.80 cm³/g, a micropore width of X₀ = 1.32 nm, and a specific surface area of S_BET = 2115 m²/g. At 303 K and 20 MPa, the adsorption activity of the adsorbent reaches ~22 wt % for methane. The volumetric density of adsorbed methane on the compacted adsorbent EC-103 (1) with a binder at a pressure of 10 MPa reaches ~200 nm³/m³.