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Article

Flux-Reducing Tendency of Pd-Based Membranes Employed in Butane Dehydrogenation Processes

SINTEF Industry, P.O. Box 124 Blindern, N-0314 Oslo, Norway
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Membranes 2020, 10(10), 291; https://doi.org/10.3390/membranes10100291
Received: 29 September 2020 / Revised: 12 October 2020 / Accepted: 14 October 2020 / Published: 16 October 2020
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. View Full-Text
Keywords: palladium membrane; dehydrogenation; butylene; flux-reducing tendency palladium membrane; dehydrogenation; butylene; flux-reducing tendency
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MDPI and ACS Style

Peters, T.A.; Stange, M.; Bredesen, R. Flux-Reducing Tendency of Pd-Based Membranes Employed in Butane Dehydrogenation Processes. Membranes 2020, 10, 291. https://doi.org/10.3390/membranes10100291

AMA Style

Peters TA, Stange M, Bredesen R. Flux-Reducing Tendency of Pd-Based Membranes Employed in Butane Dehydrogenation Processes. Membranes. 2020; 10(10):291. https://doi.org/10.3390/membranes10100291

Chicago/Turabian Style

Peters, Thijs A., Marit Stange, and Rune Bredesen. 2020. "Flux-Reducing Tendency of Pd-Based Membranes Employed in Butane Dehydrogenation Processes" Membranes 10, no. 10: 291. https://doi.org/10.3390/membranes10100291

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