AbstractThe removal of hydrogen from a helium stream using a bed which contains 1.77 moles of powdered depleted uranium has been studied. The volumetric flow rate of the helium carrier ranged between 2.5 to 60 L/min while the hydrogen concentrations in the carrier stream spanned 0.1 to 1%. The system operating pressure was maintained at 132 kPa. The mass transfer length is longer than the bed length. An expression for the bed performance is obtained. The logarithm of the purification factor decreases linearly with increasing atomic ratio of hydrogen to uranium loaded on the bed, quadratically with increasing volumetric flow rate and linearly with decreasing bed length.