A real alternative to a standard cylinder with compressed hydrogen or methane is the adsorption technology of a storing these gases at moderate pressures of 3.5-6 MPa. A thermally regulated heat pipe-based cylinder intended for onboard storage of a hydrogenous gas in an adsorbed form is described. A two-dimensional numerical model of heat and mass transfer and sorption processes in such a cylinder is suggested. The fins and heat pipe shell were used as part of the computational domain. Simulations of gas charging and discharging are performed using the commercial finite volume flow solver Fluent on ANSYS. An experimental setup has been developed and data on the dynamic behavior of the carbon fibrous material-packed cylinder with hydrogen have been obtained and compared with calculations. The results of this work can be used in designing systems for adsorptive storage of hydrogen or methane that are of interest for power engineering, transport, and private usage. (C) 2013 Elsevier Ltd. All rights reserved.