On the Use of Palladium Diffusion Membranes for the Purification of Hydrogen

Component Fugacities in Hydrogen-Ammonia-Propane Mixtures. I. The Fugacity of Hydrogen

“…The regeneration was performed in the equilibrium vessel at 427°C. The following steps as described by Juenker et al (1955) and Koffler et al (1969) were carried out: (i) oxidation with air for 1 hr; (ii) evacuation and purging with nitrogen, and again evacuation; (iii) reduction with hydrogen for 1 hr at 1.4 to 2 atm; and (iv) evacuation and purging with nitrogen. This series of steps was repeated three or four times until a satisfactory transfer rate of hydrogen was obtained.…”

Model predictive control for ethanol steam reformers with membrane separation

“…Additionally, membrane separation techniques have already been applied to obtain pure hydrogen from the gas mixture [3,4,5,6]. Especially, palladium-based membranes have gained great interest with more than 6000 scientific articles [7] involved since Juenker et al [8] analysed the use of palladium membranes for hydrogen purification in 1955. The remarkable progress achieved in the field of palladium-based membrane reactors (MRs) is due to their complete hydrogen perm-selectivity with respect to all other gases [7].…”

Static Volumetric Methods for Determination of Absorbed Amount of Gases on Clean Solid Surfaces

“…Wote: Let us consider an ideal gas, admitted from a known volume VC (where it was closed under pressure pi) into the evacuated volume V. If both volumes have the same temperature, the relation: v = Vc-P1 -Pi! Pz holds, where p2 i s the pressure measured after equalization of pressures.The standard absolute deviation of V -u v is with the given deviations uvc and up, = opz = up determined by[191 Downloaded by [University of Toronto Libraries] at 07:…”