Motivated by high efficiency,tiny volume and application of new pressure recovery technique of chemical oxygen iodine laser(COIL),cryosorption of oxygen is considered.From the point of view of mass conservation,a linear relation between gaseous pressure gradient and gaseous speed at which gases flow through the zeolite porous bed is obtained,and an adsorption balance equation,describing the relation of the gaseous concentrations,is established with adsorption dynamics equation.Henry relation is employed as ...