The issue of the mechanism of biogas flow through the adhesive bed was described and flow analogy was made for the porous structure model. With regard to the problem of biogas flow through the adhesive bed, the process issue was recognized in the description of the mechanism of gas movement in the porous structure for the development of a new generation of alternative energy sources, especially biogas production from swine slurry. The paper presents preliminary results of experimental tests in the field of hydrodynamics evaluation of biogas flow through an adhesive bed. The gas flow resulting from overpressure forcing this flow was assumed as the basis for the assessment of hydrodynamics of biogas flow. The measurement results indicate a clear influence of the flow resistance in relation to the gas permeability coefficient of the bed.