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Updated: Dec 5, 2025
Hydrogen Production and Utilization in a Membrane Reactor
Published on: March 10, 2023
Flux-Reducing Tendency of Pd-Based Membranes Employed in Butane Dehydrogenation Processes
Thijs A Peters1, Marit Stange1, Rune Bredesen1
1SINTEF Industry, P.O. Box 124 Blindern, N-0314 Oslo, Norway.
Abstract:
We report on the effect of butane and butylene on hydrogen permeation through thin state-of-the-art Pd-Ag alloy membranes. A wide range of operating conditions, such as temperature (200-450 °C) and H2/butylene (or butane) ratio (0.5-3), on the flux-reducing tendency were investigated. In addition, the behavior of membrane performance during prolonged exposure to butylene was evaluated. In the presence of butane, the flux-reducing tendency was found to be limited up to the maximum temperature investigated, 450 °C. Compared to butane, the flux-reducing tendency in the presence of butylene was severe. At 400 °C and 20% butylene, the flux decreases by ~85% after 3 h of exposure but depends on temperature and the H2/butylene ratio. In terms of operating temperature, an optimal performance was found at 250-300 °C with respect to obtaining the highest absolute hydrogen flux in the presence of butylene. At lower temperatures, the competitive adsorption of butylene over hydrogen accounts for a large initial flux penalty.
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